Free Channel Research Articles

Research on the Effect of CR-express on Trade Growth in Inland Regions

China Railway Express is an important step of interconnection under the Belt and Road initiative, which has built a large international trade logistics channel linking the Eurasian Economic Circle. As a key breakthrough for the coastalization” of inland regions, can CR-express promote the trade growth of inland regions, especially inland free trade zones? To what extent has trade growth been improved? What is the influence mechanism of CR-express on trade growth in inland regions? What is the impact of CR-express on investment and industrial distribution in inland regions, and how will it affect trade growth? Are there differences in trade growth among different locations, such as inland free trade zones, transport channels, and source nodes? How can CR-express construction further promote trade growth in inland regions? These urgent problems have important practical significance for grasping the effect and transmission mechanism of CR-express construction on trade growth in inland regions, and can also provide enlightenment to further develop China’s opening up and narrow the regional development gap.This paper analyzes the effect and mechanism of international logistics transport vehicle on regional trade growth. By using the panel data of economy and trade in the central and western inland regions from 2008 to 2017, and the method of PSM-DID, this paper makes an empirical study on the relationship between CR-express and trade growth in inland regions, and explores the internal mechanism of CR-express on trade growth from the perspectives of transport costs and transaction costs. It further analyzes the impact of the opening of CR-express on investment and industrial distribution in inland regions, and examines the regional heterogeneity of CR-express on trade growth in inland free trade zones, source nodes, and transport channels. Important conclusions of this paper are as follows: Firstly, the opening of CR-express has significantly promoted the trade growth in inland regions, especially the regions opening CR-express. The trade growth effect is mainly reflected in the significant increase of exports, and this effect presents the periodic dynamic characteristics which is shown as a U”-shaped curve. Secondly, the opening of CR-express will help to reduce transport costs（shorter transport time）and transaction costs（government subsidies）. These two cost savings enhance the attractiveness and cost competitive advantage of CR-express, which is a new mode of international trade logistics transportation, and helps to promote trade growth in inland regions. Thirdly, the opening of CR-express has enhanced the attraction of inland regions for foreign investment, encouraged domestic enterprises to invest, promoted the transfer and receiving of industries among regions, played a catalytic role in the adjustment of the local industrial structure and the optimization of the industrial layout, brought about the transformation and upgrading of industries and trade, and provided endogenous impetus for the trade growth in inland regions. Finally, the analysis of location heterogeneity shows that the opening of CR-express has a greater impact on the trade level of inland free trade zones, source nodes and transport channels, and the trade hub effect of inland free trade zones is significant. CR-express strengthens the trade resource agglomeration function of inland free trade zones, and enlarges the siphon effect of source nodes and the radiation effect of transport channels.

One-Way Reflection-Free Exciton-Polariton Spin-Filtering Channel

We consider theoretically exciton-polaritons in a strip of honeycomb lattice with zigzag edges and it is shown that the interplay among the spin-orbit coupling, Zeeman splitting, and an onsite detuning between sublattices can give rise to a band structure where all the edge states of the system split in energy. Within an energy interval, one of the spin polarized edge states resides with the gap-less bulk having opposite spin. Being surrounded by opposite spin and the absence of the backward propagating edge state ensures both reflection free and feedback suppressed one-way flow of polaritons with one particular spin in the system. The edge states in this system are more localized than those in the standard topological polariton systems and are fully spin polarized. This paves the way for feedback free spin-selective polariton channels for transferring information in polariton networks.

Magnetic field assisted preparation of PES-Ni@MWCNTs membrane with enhanced permeability and antifouling performance.

Multiple wall carbon nanotubes (MWCNTs), as an excellent material, have been used in various applications including preparation of polymer-MWCNTs composite membranes. However, few reports have combined the magnetic Ni@MWCNTs with polyether sulfone (PES) membrane to improve its antifouling performance to humic acid (HA), sodium alginate (SA), bovine serum albumin (BSA) and yeast (YE) solutions. In this study, the Ni@MWCNTs was generated by immersing MWCNTs into Ni2+ solution where in-situ reduction reaction was launched by the adsorbed Ag+ on MWCNTs. Since the loaded Ni endowed magnetism to MWCNTs, the Ni@MWCNTs can be easily attracted onto the membrane surface by an external magnetic field during the phase inversion process. The morphology measurements confirmed that the Ni@MWCNTs headed out of the PES-Ni@MWCNTs membrane surface. Because the MWCNTs played a role of free channels for water molecules, the composite membrane water flux reached to threefold flux of the pristine membrane. Moreover, the PES-Ni@MWCNTs membranes displayed the obviously enhanced antifouling ability during all the three alternative filtration cycles of water and BSA, SA, YE and HA solutions. In addition, the optimal PES-Ni@MWCNTs membrane demonstrated a flux recovery rate (FRR) of 67.89%, 85.53%, 60.28 and 90.12% for BSA, SA, YE and HA, respectively, which were not only much higher than that of the pristine membrane, but also exhibited significant improvements comparing with the previous studies. Further results of extended Derjaguin-Landau-Verwey-Overbeek (XDLVO) theory indicated that the modified membrane possessed advantageous interaction energies with contaminant molecules over the pristine membrane.

Performance Improvement in MIMO-OFDM Systems based on adaptive Whale Elephant Herd Optimization algorithm

Multiple-input, multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) is the leading air interface for 4G and 5G broadband wireless communications. Cognitive Radio (CR) is the trending technology, which facilitates spectrum sensing to determine the inadequate bands in the spectrum. Though there are so many spectrum sensing techniques, the existing methods suffered a lot in the communication environment. In the traditional CR network, data transmission is constrained to the secondary user within the available bands. With the aim to increase spectrum efficiency and throughput, this paper proposed the hybrid mixture model using Adaptive Whale Elephant Herd Optimization (Adaptive WEHO) algorithm for spectrum sensing. Adaptive WEHO is the integration of Elephant-Herd Optimization (EHO), and Whale Optimization Algorithm (WOA), with the adaptive concept. The signal received from the OFDM antenna is used to analyze the availability of spectrum based on the signal energy and Eigen statistics. The CR searches the availability of channel and makes the connection when it determines a free channel. Here, the spectrum sensing is achieved by the Gaussian Mixture Model (GMM), which is trained by the proposed Adaptive WEHO algorithm. The proposed Adaptive WEHO algorithm uses the foraging behavior of whales and the herding behavior of elephants, which is applied in the spectrum sensing technique to perform the optimal sensing. The proposed Adaptive WEHO attained better performance with the metrics of probability of detection as 1.0238, and the probability of false alarm as 0.01075, respectively. The proposed method ensures the effective communication in CR without any interference.

Analytical Performance Evaluation of a STBC Coded OFDM FSO Communication System over Turbulent Atmospheric Channel

An analytical approach is presented for an optical IM/DD system with STBC coded OFDM RF subcarrier modulation over a free space optical turbulent channel. The analysis is developed to find the expressions for the output photodetector current and carrier to noise power ratio at the output of the STBC–OFDM demodulator. The average bit error rate is evaluated numerically considering log-normal distribution of the atmospheric turbulence. The numerical results show that STBC-OFDM optical link suffers power penalty due to atmospheric turbulence significantly. However, the power penalty can be reduced by increasing the number of OFDM subcarriers. For example, power penalty for (2X1) STBC with N = 16 OFDM subcarriers is 7.5 dB and the power penalty reduces to 0.55 dB when N is increased to 64. Results are evaluated for different link distance, OFDM subcarriers and various channel condition.

Investigation on Hollow Beam Propagation through Turbulence Conditions in Free Space Optical Communication

In Free Space Optical Communication (FSO), the optical signal from the laser source severely affects while travelling through free space atmospheric channel due to scattering, absorption and other effects of atmospheric turbulence conditions. This degrades the performance of FSO communication. In this article, we have generated the hollow beam from the laser output by the inverse axicon lens called inverted axicon beam. An artificial controlled turbulence chamber is created and the test signal has been transmitted through the turbulence conditions by employing various modulation schemes such as PAM, PWM, PPM, ASK, BPSK and QPSK separately. In all cases, we measured parameters phase jitter and Time jitter experimentally and the results are compared. Two types of wavelength laser sources such as red and green lasers are used for the analysis. In which, ASK provides a better withstand ability to jitter than other modulation techniques with atmospheric turbulence.

General Resource Theories in Quantum Mechanics and Beyond: Operational Characterization via Discrimination Tasks

We establish an operational characterization of general convex resource theories -- describing the resource content of not only states, but also measurements and channels, both within quantum mechanics and in general probabilistic theories (GPTs) -- in the context of state and channel discrimination. We find that discrimination tasks provide a unified operational description for quantification and manipulation of resources by showing that the family of robustness measures can be understood as the maximum advantage provided by any physical resource in several different discrimination tasks, as well as establishing that such discrimination problems can fully characterize the allowed transformations within the given resource theory. Specifically, we introduce quantifiers of resourcefulness of states, measurements, and channels in any GPT based on the generalized robustness, and show that they exactly characterize the maximum advantage that a given resource provides over all free states, measurements, or channels in a class of state or channel discrimination tasks. In quantum mechanics, we show that the robustness of measurement can be alternatively understood as the maximal increase in one-shot accessible information when compared to free measurements. We furthermore endow the standard robustness of a state with an operational meaning as the quantifier of the maximum advantage in binary channel discrimination tasks. Finally, we show that several classes of channel and state discrimination tasks can form complete families of monotones fully characterizing the transformations of states and measurements under any chosen class of free operations. Our results establish a fundamental connection between operational tasks of discrimination and core concepts of resource theories, valid for all physical theories with no additional assumptions about the structure of the GPT required.

Harnessing Photoluminescent Properties of Carbon Nitride Nanosheets in a Hierarchical Matrix

AbstractRapid screening of polycyclic aromatic hydrocarbons (PAHs), a large class of toxic and carcinogenic compounds, is highly desirable for environmental and food safety. In principle, a photoluminescent (PL) assay is a potential route, but demands highly efficient and stable, low cost, and environment‐friendly photoactive materials. 2D carbon nitride nanosheets (CNNS) that have triggered increasing interest may meet all these requirements. However, conventional applications of CNNS are restricted in aqueous solution, in which the long‐term dispersibility is difficult to be addressed. Here, the harnessing of unique PL properties of CNNS is reported by dispersing them in a hierarchical polymeric matrix, driven by electrostatic interactions. Such a configuration not only enables a solid‐state host to perpetually maintain homogeneous dispersibility of CNNS but also processes free channels for sufficient mass transfer. Moreover, the nanohybrid inherits the unique PL properties of CNNS. Further using β‐CD as the molecular recognition unit, an economic, highly selective and sensitive paper‐based PL sensor for PAHs is constructed via an inner‐filter effect. This work opens a new avenue in harnessing unique PL properties of CNNS in solid state with superior stability for a variety of potential sensing applications, especially for point‐of‐care testing and/or in developing countries.

A novel need based free channel selection scheme for cooperative CRN using EFAHP-TOPSIS

Emerging wireless applications needs more spectrums space to tackle the rapid growth of users. Outside of radio band in spectrum will be hard to utilize for data transmissions in terms of hardware requirement. Cognitive radio research considers the Current Spectrum underutilization and provides a better model for next-generation wireless environment. Since, the cognitive radio and its policies violate the static spectrum allocation i.e., Current Wireless networks policy, many challenges are in front of us to accomplish a better cognitive radio wireless environment. One of the major challenges is secure transmission and optimal free channel selection for un-interrupt data transmission. In this article, we have proposed an efficient free-channel selection scheme for improving QoS of Cooperative Cognitive Radio Networks. The proposed model has been derived as an integrated approach by using successful MCDM techniques such as EFAHP and TOPSIS. Also, we have proved the optimality of the proposed integrated technique with other parallel channel selection techniques with various scenarios.

A generalised model for electro-osmotic flow in porous media

Purpose This study aims at developing a comprehensive model for the analysis of electro-osmotic flow (EOF) through a fluid-saturated porous medium. To fully understand and exploit a number of applications, such a model for EOF through porous media is essential. Design/methodology/approach The proposed model is based on a generalised set of governing equations used for modelling flow through fluid saturated porous media. These equations are modified to incorporate appropriate modifications to represent electro-osmosis (EO). The model is solved through the finite element method (FEM). The validity of the proposed numerical model is demonstrated by comparing the numerical results of internal potential and velocity distribution with corresponding analytical expressions. The model introduced is also used to carry out a sensitivity analysis of the main parameters that control EOF. Findings The analysis carried out confirms that EO in free channels without porous obstruction is effective only at small scales, as largely discussed in the available literature. Using porous media makes EO independent of the channel scale. Indeed, as the channel size increases, the presence of the charged porous medium is essential to induce fluid flow. Moreover, results demonstrate that flow is significantly affected by the characteristics of the porous medium, such as particle size, and by the zeta potential acting on the charged surfaces. Originality/value To the best of the authors’ knowledge, a comprehensive FEM model, based on the generalised equations to simulate EOF in porous media, is proposed here for the first time.

Extendibility Limits the Performance of Quantum Processors.

Resource theories in quantum information science are helpful for the study and quantification of the performance of information-processing tasks that involve quantum systems. These resource theories also find applications in other areas of study; e.g., the resource theories of entanglement and coherence have found use and implications in the study of quantum thermodynamics and memory effects in quantum dynamics. In this paper, we introduce the resource theory of unextendibility, which is associated with the inability of extending quantum entanglement in a given quantum state to multiple parties. The free states in this resource theory are the k-extendible states, and the free channels are k-extendible channels, which preserve the class of k-extendible states. We make use of this resource theory to derive nonasymptotic, upper bounds on the rate at which quantum communication or entanglement preservation is possible by utilizing an arbitrary quantum channel a finite number of times, along with the assistance of k-extendible channels at no cost. We then show that the bounds obtained are significantly tighter than previously known bounds for quantum communication over both the depolarizing and erasure channels.

A decision‐making approach for detecting the primary user emulation attack in cognitive radio networks

SummaryCognitive radio network (CRN) is a promising technology, which enables secondary users to use the free spectrum channels without causing detrimental interference with the primary user (PU). Nevertheless, CRN is subject to numerous cyber attacks that have a negative impact on its performance. Among the CRN attacks, the primary user emulation (PUE) attack is known to be one of the malicious attacks threatening CRN security. Several attacks detection techniques, based on attacker localization, have been investigated in the literature. These techniques include the trilateration, received signal strength indication (RSSI), and network coding approach as well. However, most of these techniques do not consider the uncertainty related to CRN, which can be modeled by a cost function defined as a weighted sum of conditional probabilities. In this paper, a localization technique, relied on a trilateration computation and a Bayesian model, is proposed for PUE position detection purpose under uncertainty conditions assumption. Particularly, the estimation of PUE position is performed through trilateration method based on RSSI at the anchor nodes for the signal coming from either PU or PUE, whereas, the Bayesian decision model, based on a cost function, is involved to check the PU legitimacy. The simulation results show that the decision‐making approach "Security, productivity, Balancing" influences directly the zone of the PUE attack detection.

A novel proactive handoff scheme with CR receiver based target channel selection for cognitive radio network

Spectrum handoff in cognitive radio networks (CRN) enables the cognitive radio (CR) users to guarantee the desired QoS of the primary users. The handoff schemes grant an efficient exploitation of the available spectrum holes in the network. In the presented work, a novel proactive spectrum handoff scheme is made for ad hoc network scenario. Here, a network coordination schemes for unlicensed users is incorporated first. In our proposed framework, unlicensed users coordinate with each other using a Common Control Channel (CCC). Primary user free channel lists (PCL’s) are shared among CR users before actual data transmission to achieve better CR node coordination as well as to share information of nearby scenario. The PCL history stored at each CR transmitter (CRTx) node is used to make channel switching policies and to let unlicensed users vacate a channel before a licensed user utilizes it to avoid unwanted interference. Moreover, the node channel matrix created for the scenario helps to improve the performance further. The improvement is achieved through taking PCL history of CRRx into count. So, a novel proactive approach is developed here which uses the PCL history of both CRTx and CRRx. Simulation results show that proposed novel proactive spectrum handoff outperforms the reactive spectrum handoff approach in terms of higher throughput and fewer collisions to licensed users. Furthermore, a distributed channel selection can achieve higher packet delivery rate compared with existing channel selection schemes.

Remote Sensing using Hybrid Access Cognitive Femtocell Networks in Wireless Communication

Femto cells are miniature wireless telecommunications base stations that can be placed in different inhibited or industry surroundings moreover as single stand-alone substance or in clusters to afford enhanced cellular coverage inside a building. It is extensively known that cellular coverage, predominantly for data transmission where high quality signal strengths are desirable is not as superior within buildings. By using a miniature domestic base station Femto cell, the cellular routine can be enhanced beside with the promising provision of other services. A cognitive radio network time after time detects handy channels in cellular spectrum, and then frequently varies its transmission or receiving parameters to tolerate further synchronized cellular communications in a given cellular electromagnetic band. Conveying of the free channels among main and minor users, in a specific geographic province at the same time as minimizing infringement amongst all users also known as the Spectrum allotment in cognitive radio networks. In this work MBS, FAP and MUs are presented. Here FAP serves the provision of sub channels and provides power in order to maximize the network effectiveness. Finally achieved maximum throughput for the deployed Macro users (MU) and also the above mentioned problem is solved by dual disintegration method.

Quality and Capacity Analysis of Molecular Communications in Bacterial Synthetic Logic Circuits.

Synthetic logic circuits have been proposed as potential solutions for theranostics of biotechnological problems. One proposed model is the engineering of bacteria cells to create logic gates, and the communication between the bacteria populations will enable the circuit operation. In this paper, we analyze the quality of bacteria-based synthetic logic circuit through molecular communications that represent communication along a bus between three gates. In the bacteria-based synthetic logic circuit, the system receives environmental signals as molecular inputs and will process this information through a cascade of synthetic logic gates and free diffusion channels. We analyze the performance of this circuit by evaluating its quality and its relationship to the channel capacity of the molecular communications links that interconnect the bacteria populations. Our results show the effect of the molecular environmental delay and molecular amplitude differences over both the channel capacity and circuit quality. Furthermore, based on these metrics, we also obtain an optimum region for the circuit operation resulting in an accuracy of 80% for specific conditions. These results show that the performance of synthetic biology circuits can be evaluated through molecular communications, and lays the groundwork for combined systems that can contribute to future biomedical and biotechnology applications.

Evaluation of Efficiency of Random Multiple Access to ALOHA Type Environment with Voice Connections, Transfer of Service Commands, Text Messages and Multimedia Files in Destructive Impact Conditions

Assessing the security of digital radio networks in destructive impact conditions is an important task. However, such an assessment for random multiple access to the ALOHA-type environment in digital radio networks was not carried out. The paper presents an analytical model of random multiple access for the environment of digital radio networks of the ALOHA type in destructive impact conditions. In this model, acomplex measure, including the probability of a successful voice connection, the transfer of a service command, a text message or a multimedia file, the degree of filling and the degree of overflow of digital radio network data packets, serves as the resultant indicator for evaluating the effectiveness of random multiple media access. The new complex indicator of the probability of a successful voice connection, the transfer of a service command, a text message or a multimedia file takes into account the known probabilities of successful delivery of data packets, creation of a collision and a free channel, as well as new average transmission times for a sequence of data packets and a collision formed during such transmission. New indicators are the degree of filling and the degree of overflow of digital radio communications network data packets. They determine in saturated and supersaturated data networks of such a network how close (far) to maximum is the probability value of a successful voice connection, transmission of a service command, test message or multimedia file. The model takes into account the potential destructive effects of the attacker by refining the analytical expressions for the known probabilistic and new temporal characteristics. First, a quantitative relationship between the probability of a successful voice connection, the transfer of a service command, a text message or a multimedia file and the average duration of a data channel collisions is established./ Secondly, for guaranteed disabling a digital radio network with random multiple access to the medium ALOHA type attacker must constantly carry out a destructive impact. The results are applied in design of digital radio communications networks operating under destructive impacts, as well as in development of automatic systems for optimizing the operation of digital radio communications networks and protecting them from such impacts.

Characterization of unique natural gas flow in fracture-vuggy carbonate reservoir: A case study on Dengying carbonate reservoir in China

We investigate the natural gas flow behavior in the Dengying carbonate reservoir of Gaoshiti-Moxi Block in China. Outcrops observation, petrophysical properties measurement, and formation micro-resistivity image logging (FMI) all show that the vugs distribute in a stratified manner with characteristic length ranging from 0.2 to 4 cm. The horizontal permeability is significantly larger than the vertical permeability due to the stratified distribution of vugs and fractures. We build a representative conceptual reservoir model to describe this fracture-vuggy type carbonate reservoir. Both Darcy equation and Stokes-Brinkman equation are applied to simulate natural gas flow in this type of reservoir. Simulation results show that natural gas mainly flows along the free channel formed by low-dip fractures and flat ellipsoid vugs. Compared with the Darcy method, the Stokes-Brinkman method provides a more accurate prediction of gas flow behavior in the fracture-vug carbonate reservoir.

Orthogonal Turbine for Free Rivers and Channels

The paper discusses the problem of using the energy of rivers without creating the dams and flooding vast areas and notes that there is a progress in the implementation and development of the ideas of patent in 1931 (the speed of the workers turbine blades is higher than flow rate). The paper gives the diagrams of the new turbines of this type, for example a balanced 6-tier single-blade turbine, turbine-spiral, a balanced twoblades turbine. Moreover, the paper deals with the features free-threaded orthogonal turbines in the streams of the limited width and depth. The most important characteristic of a turbine is the turbine's power factor that is equal to the ratio of the energy of the rotating turbine to the kinetic energy of the flow in the current tube passing through the turbine circuit. There is a possibility of a significant increase in the power of the turbine in comparison with the conditions of use unlimited streams. The increase in turbine power in a straitened flow is associated with an increase in the flow velocity in the turbine on the approach to the rear section of the blades’ track. It is set the requirements of the turbine parameters for maximum power at a given water flow and the permissible level rise in the river. These requirements relate to the certain rules for selecting the number of blades (and solidity) of the turbine, taking into account the permissible increasing in the water level (backup) in front of the turbine. The paper notes the turbines instability at low speed of rotation, describes a turbine design modification that eliminates this drawback. Modification of the high-speed orthogonal turbines is the use of accelerating blades with a cup-shaped cross-section, placed on the route within a diameter 2 times smaller than the diameter of the main (working) blades of the smoothly streamlined profile. It is concluded that all considered variants of turbines for streams with limited cross-section, the design of the blade system may be made rigid, which eliminates the single central shaft (axle), replacing it with a reference semi-shafts.

Using a Human-Centered Design Approach to Determine Consumer Preferences for Long-Lasting Insecticidal Nets in Ghana.

A human-centered design approach, paired with traditional research methods, was used to explore consumer preferences of middle-class Ghanaians for a long-lasting insecticidal net (LLIN) to be designed for the private-sector retail market. In March 2017, we conducted 9 focus groups with urban and rural middle-class Ghanaians across Ashanti, Greater Accra, and Western regions. A total of 78 participants (51 adults and 27 boarding school students) were involved in the focus groups. Participants were asked for their input on topics related to malaria prevention, LLIN perceptions and use behavior, as well as general consumer preferences related to the home and bedroom. They participated in a variety of exercises, such as rank ordering their preferences of various accessories that might be bundled with an LLIN and interacting with actual LLINs of different sizes and designs. The data were gathered and analyzed, using micro-interlocutor analysis framework to capture emergent themes. LLINs are currently available through free distribution channels, but in most accounts, participants reported that the nets were inconvenient, uncomfortable, and not aesthetically pleasing, thus they were undesirable to use. For example, several participants described the process of hanging as well as entering and exiting the LLIN as challenging, stressful, and/or tedious. In addition, use of LLINs was considered to make people feel even hotter in an already warm climate as well as to leave users feeling confined within a small space. Finally, many participants discussed how to improve the look of LLINs including suggestions for additional colors, shapes, and hanging mechanisms to make the LLINs more compatible with their desired bedroom and home décor. Based on the participants' responses, we concluded that they would prefer LLINs that better reflect contemporary sensibilities. We devised and tested different LLIN attributes to address these points, focusing on a more convenient way to hang the net, a more attractive silhouette, and a zipper that allows the user to enter and exit with ease while still maintaining a sealed, mosquito-free space. A separate discrete choice experiment confirmed the attractiveness of these attributes by capturing the target population's willingness to pay for LLINs with said preference-congruent attributes. Our human-centered design approach yielded consumer insights and preferences for novel LLIN designs for the private-sector retail market in Ghana. If this net design is successful, it could increase LLIN use among the middle class and catalyze the purchase of LLINs to support ongoing malaria control efforts.

Parents’ lived experiences in the UK

PurposeThis paper aims to investigate how, where and when parents are mediating their children’s media activities and with which particular device. It also explores whether parents are identifying specific help in this area and questions where they might seek advice (should they need it). Furthermore, it investigates parents’ views regarding a pilot, free online TV channel dedicated to advice through discussion with experts, parents and children.Design/methodology/approachThis small-scale study uses charts and semi-structured interviews to explore the views of parents/carers to better understand lived experiences in relation to mediated digital parenting in the home. The methodology was also designed so that findings will inform further production of relevant content for a video-based resource.FindingsAlthough this study was limited in duration and scope, the results clearly support earlier research (Livingstone, 2018a, 2018b; Ofcom, 2017) regarding the desperation parents feel through not being able to access appropriate advice in the way they want it. Furthermore, findings provide overwhelming support for the potential benefits of relevant predominantly visually-based online content/advice.Practical implicationsThe study raises questions about the empowerment of parents/carers in their own digital skills as a way of transferring confidence to their children, in navigating their way through the educational and social affordances and online safety issues through the use of accessible filmed content.Originality/valueThe findings show that issues, such as online safety and related behavioural pressures, remain key for parents and that there is an increasing need for more targeted support and ways to empower parents/grandparents with skills to enhance children’s digital agency. Furthermore, it offers an insight into ways in which styles of “enabling mediation” in the digital age may be analysed and reveals some of the day to day challenges parents face.