Integrated Communication Research Articles

Neural-network-based carrier-less amplitude phase modulated signal generation and end-to-end optimization for fiber-terahertz integrated communication system.

In fiber-terahertz integrated communication systems, nonlinear distortion and inter-symbol interference (ISI) will degrade transmission performance. Pre-compensation is an efficient method to handle the channel distortion as it can avoid noise boosting during channel compensation and reduce receiver side signal processing algorithmic complexity at user-end (UE) considering the asymmetric access scenario. In this paper, we propose and experimentally demonstrate a neural-network (NN)-based carrier-less amplitude phase (CAP) modulated signal generation and end-to-end optimization method for a fiber-terahertz integrated communication system. The CAP signal is generated directly from quadrature amplitude modulation symbols and pre-compensated through a transmitter NN, which allows the receiver to demodulate the signal with simple linear digital signal process (DSP). In generating the CAP signal, the NN based transmitter learns a group of filters, which can generate, up-convert, and pre-compensate the signals. Based on the proposed method, a fiber-terahertz integration access system at 220 GHz is demonstrated and a sensitivity gain of 1.2 dB is achieved at a transmission speed of 50 Gbps and the forward error correction (FEC) bit error rate (BER) threshold of 1 × 10-2 compared with the baseline after 10-km fiber transmission and 1-m wireless delivering.

Eight-channel integrated device for electro-optic modulation and dense wavelength division multiplexing based on photonic crystals

We propose an eight-channel integrated device for electro-optic modulation and dense wavelength division multiplexing based on photonic crystals. The device consists of eight photonic crystal AAH cavities and eight reflection cavity filters to contribute a modulation module and a dense wavelength division multiplexing module, respectively. First, the physical model of the eight-channel integrated device is established, and then modeling and analyzing the transmission performance of the single channel modulator according to the coupled mode theory. The parameters of the proposed device are calculated by two dimensional finite-difference time-domain method for verification. The numerical results shows that the minimum insertion loss, channel crosstalk in the “on” state are 0.24 dB and −17.8 dB, respectively, and the extinction ratio in the “off” state is higher than 19.3 dB. The designed eight-channel integrated device has the advantages of low loss, small size (114.81×16×0.22)μm3 and easy cascading structure, which can realized “on” and “off” modulation with channel space of 0.8 nm, dense wavelength division multiplexing function in the operating wavelength range of 1552.8 nm–1558.4 nm and applied in data center and highly integrated optical communication system.

Subjective Matrix оf Vertical Political Communication

The article provides a brief overview of various aspects of research into subjects of political communication, analyzing their key characteristics and distinctive features. The authors introduce their own typology of political communication through the construction of a vertically integrated communication matrix. The key characteristics of each type of political communication and the main subjects of communication, their goals and degree of nativeness are described in detail. In the course of the study, the authors come to the conclusion that the leading role in the subject matrix is played by the dominant type of political communication, where the main actor is the highest official of the state.

Distributed MIMO Measurements for Integrated Communication and Sensing in an Industrial Environment.

Many concepts for future generations of wireless communication systems use coherent processing of signals from many distributed antennas. The aim is to improve communication reliability, capacity, and energy efficiency and provide possibilities for new applications through integrated communication and sensing. The large bandwidths available in the higher bands have inspired much work regarding sensing in the millimeter-wave (mmWave) and sub-THz bands; however, the sub-6 GHz cellular bands will still be the main provider of wide cellular coverage due to the more favorable propagation conditions. In this paper, we present a measurement system and results of sub-6 GHz distributed multiple-input-multiple-output (MIMO) measurements performed in an industrial environment. From the measurements, we evaluated the diversity for both large-scale and small-scale fading and characterized the link reliability. We also analyzed the possibility of multistatic sensing and positioning of users in the environment, with the initial results showing a mean-square error below 20 cm on the estimated position. Further, the results clearly showed that new channel models are needed that are spatially consistent and deal with the nonstationary channel properties among the antennas.

THz ISAC: A Physical-Layer Perspective of Terahertz Integrated Sensing and Communication

THz ISAC: A Physical-Layer Perspective of Terahertz Integrated Sensing and Communication

The Importance of Context Theory in Language Education

In common use, almost every word has many shades of meaning, therefore, it needs to be interpreted by context. A context theory is a very important theory in language education.
 This paper aims to show the notion of context and its importance in communication and language study which has been extensively studied by different linguists from different perspectives. Moreover, in today's world, there is a growing need to learn how to use language appropriately in context and it is widely accepted that language requires context in order to function as a medium of communication between speakers and listeners. Therefore, effective communicator needs to understand all forms of context to master all forms of verbal and physical exchanges of information and as listeners, they make use of background knowledge about the speaker, concepts and previous utterances in order to infer the speaker's intended meaning. Therefore, effective language teachers treat language as a whole integrated communication system and use it as a context to facilitate their students learning. 
 In this paper, the author emphasizes the importance of context theory in interactive language teaching concentrating on developing natural language communication and the teacher aims to use all language activities in meaningful situation and how to promote the students' communicative competence in the context and use all knowledge about language in meaningful situation to negotiate meaning and get their message through.

A Bidirectional Wireless Power Transfer System with Integrated Near-Field Communication for E-Vehicles

This paper presents the design of a bidirectional wireless power and information transfer system. The wireless information transfer is based on near-field technology, utilizing communication coils integrated into power transfer coils. Compared with conventional far-field-based communication methods (e.g., Bluetooth and WLAN), the proposed near-field-based communication method provides a peer-to-peer feature, as well as lower latency, which enables the simple paring of a transmitter and a receiver for power transfer and the real-time updating of control parameters. Using the established communication, control parameters are transmitted from one side of the system to another side, and the co-control of the inverter and the active rectifier is realized. In addition, this work innovatively presents the communication-signal-based synchronization of an inverter and a rectifier, which requires no AC current sensing in the power path and no complex algorithm for stabilization, unlike conventional current-based synchronization methods. The proposed information and power transfer system was measured under different operating conditions, including aligned and misaligned positions, operating points with different charging powers, and forward and reverse power transfer. The results show that the presented prototype allows a bidirectional power transfer of up to 1.2 kW, and efficiency above 90% for the power ranges from 0.6 kW to 1.2 kW was obtained. Furthermore, the integrated communication is robust to the crosstalk from the power transfer and misalignment, and a zero BER (bit error rate) and ultra-low latency of 15.36 µs are achieved. The presented work thus provides a novel solution to the synchronization and real-time co-control of an active rectifier and an inverter in a wireless power transfer system, utilizing integrated near-field-based communication.

Transmissible topological edge states based on Su–Schrieffer–Heeger photonic crystals with defect cavities

Abstract Topological photonic crystals have great potential in the application of on-chip integrated optical communication devices. Here, we successfully construct the on-chip transmissible topological edge states using one-dimensional Su–Schrieffer–Heeger (SSH) photonic crystals with defect cavities on silicon-on-insulator slab. Different coupling strengths between the lateral modes and diagonal modes in photonic crystal defect cavities are used to construct the SSH model. Furthermore, two photonic SSH-cavity configurations, called α and β configurations, are designed to demonstrate the topological edge states. Leveraging the capabilities of photonic crystal transverse electric modes with on-chip transmission, we introduced a waveguide to excite a boundary defect cavity and found that the transmission peak of light, corresponding to the topological edge state, can be received in another boundary defect cavity, which is caused by the tunnel effect. Moreover, the position of this peak experiences a blue shift as the defect cavity size increases. Therefore, by tuning the size of the SSH defect cavity, on-chip wavelength division multiplexing function can be achieved, which is demonstrated in experiments. The ultrafast response time of one operation can be less than 20 fs. This work harmonizes the simplicity of one-dimensional SSH model with the transmissibility of two-dimensional photonic crystals, realizing transmissible on-chip zero-dimensional topological edge states. Since transmission peaks are highly sensitive to defect cavity size, this configuration can also serve as a wavelength sensor and a reconfigurable optical device, which is of substantial practical value to on-chip applications of topological photonics.

Analysis Of Service User Satisfaction With The Performance Of Supervisory Consultants Based On Implementation Allocations In The Housing And Settlement Area Activities Of East Java Province

To realize better infrastructure development for housing and settlement facilities in East Java province and the success of the project, the government, especially in the PRKP sector of East Java Province, collaborates with service providers, one of which is supervisory consultants. This encourages supervisory consultants to improve their understanding of customer satisfaction. This research has several objectives, namely identifying variables related to the project management performance in the PRKP sector activities in East Java Province, measuring the customer satisfaction level of project management performance in the housing sector activities in East Java Province, and identifying the variables in the project management performance of the PRKP housing sector activities in East Java Province that need to be proposed for improvement or maintenance to enhance customer satisfaction. The research stages include the background of the research, formulation of the problem and research objectives, literature review, preliminary survey, data collection, data testing, and data analysis. The analysis method used is the customer satisfaction index and importance-performance analysis. The customer satisfaction index analysis results show a CSI value of 93.55%, indicating satisfaction. Meanwhile, the importance-performance analysis (IPA) results reveal an overall gap score of -13 and an overall conformity percentage of 94.61%, indicating that the project owner is not satisfied with the project management performance of the supervisory consultant. The importance-performance analysis (IPA) in this study identifies variables with high importance and satisfaction to be maintained, namely Integration Management, Scope Management, Schedule Management, Resource Management, Communication Management, and Procurement Management. Meanwhile Cost Management, Quality Management, Risk Management, and Stakeholder Management have low priority and need improvement.

Postpartum quality of life and mental health in women with heart disease: Integrated clinical communication and treatment.

Postpartum quality of life (QoL) in women with heart disease has been neglected. To improve clinical communication and treatment, we integrated medical data and subjective characteristics to study postpartum QoL concerns. The study assessed QoL 6 wk after birth using the 12-Item Short-Form Health Survey. The Edinburgh Postnatal Depression Scale, Cardiac Anxiety Questionnaire, European Heart Failure Self-Care Behavior Scale, and a self-designed questionnaire based on earlier research were also used to assess patient characteristics. Patient data were collected. Prediction models were created using multiple linear regression. This retrospective study examined postpartum QoL in 105 cardiac patients. Postpartum QoL scores were lower (90.69 ± 13.82) than those of women without heart disease, with physical component scores (41.09 ± 9.91) lower than mental component scores (49.60 ± 14.87). Postpartum depression (33.3%), moderate anxiety (37.14%), pregnancy concerns (57.14%), offspring heart problems (57.14%), and life expectancy worries (48.6%) were all prevalent. No previous cardiac surgery, multiparity, higher sadness and cardiac anxiety, and fear of unfavorable pregnancy outcomes were strongly related to lower QoL (R2 = 0.525). Postpartum QoL is linked to physical and mental health in women with heart disease. Our study emphasizes the need for healthcare workers to recognize the unique characteristics of these women while developing and implementing comprehensive management approaches during their maternity care.

Building smart brands through online and artificial intelligence tools: A quantitative analysis about the best hospitals in Spain

Building a reputed brand constitutes a priority for hospitals interested in establishing positive relationships with their stakeholders. However, hospitals face different challenges: limited budgets, strict legal frameworks, etc. To overcome these challenges, many hospitals resort to online and artificial intelligence tools. This paper analyzes how hospitals manage both tools to improve their relationships with stakeholders and reinforce their brand reputation. To do that, we conducted a literature review about smart branding in hospitals, and then we defined 34 quantitative indicators to evaluate how the 100 best hospitals in Spain managed their websites, online newsrooms, about us sections and artificial intelligence departments for branding purposes. Our results proved that most hospitals focused their smart branding initiatives on patients (4.98 criteria out of 11) and not on media companies (3.14/11) or public authorities (3.14/6). We concluded that hospitals should implement integrated communication strategies, use artificial intelligence to brand their employees, and establish more professional practices in their communication departments.

Taktik Komunikasi Efektif dalam Kampanye Lingkungan : Peran Humas dalam Kesadaran dan Aksi Bersama

In contemporary environmental discourse, the role of Integrated Marketing Communication (IMC) and collaborative efforts between Public Relations (PR) practitioners and environmental experts hold significant relevance. This study explores the pivotal role of communication strategies in environmental campaigns and the collaborative mechanisms between PR and environmental specialists within various organizational contexts. Estaswara (2000) underscores the strategic necessity of integrated communication in marketing, emphasizing its transformation from a mere promotional tool to a strategic business process. The findings highlight the insufficiency of environmental awareness alone in inciting tangible action. Discussions center around designing campaign messages to effectively drive concrete and sustainable behavioral changes. Collaboration between PR and environmental experts is articulated through several methods. Firstly, monitoring emissions involves joint efforts to develop and manage emission monitoring systems like Continuous Industrial Emission Monitoring Information System (CISPEK) and Continuous and Networked Effluent Water Quality Monitoring System (SPARING). Secondly, Performance Rating Program for Environmental Performance (PROPER) is used by PR to establish cooperation and enhance public trust in environmental management. Thirdly, effective communication and community engagement leverage social media and communal activities to disseminate information and amalgamate feedback from the public. The jurnal asserts the vital role of PR in fostering public participation, guiding communities on critical issues, and encouraging their contribution to sustainable development. By providing pertinent explanations, PR elevates societal awareness regarding crucial issues like environmental sustainability, climate change, and public health, stimulating active involvement in sustainable development endeavors..

Analysis of the Marketing Strategy of China's Film and Television Industry Based on the Background of Media Convergence -- Taking the Film "Wandering the Earth" as an Example

With the continuous development of media convergence, the marketing strategy of China's film and television industry has been constantly enriched, and the marketing and media of the film and television industry have entered an era of deep integration. Media convergence has brought the expansion of communication platform and the innovation of content for the marketing of film and television industry. The film "wandering the earth" has been a great success in the Chinese film market. The publicity team behind it integrates media resources, disseminates high-quality content and makes important contributions to the film box office. Taking "wandering the earth" as an example, this paper uses the theoretical model of integrated marketing strategy to explore the marketing strategy of China's film and television industry under the background of media convergence from four deeper perspectives: content marketing, integrated communication channels, interactive marketing and the development of IP system. Finally, the article combines the existing strategies with future development, and puts forward the problems that need to be improved.

STRATEGI KOMUNIKASI DALAM MENINGKATKAN PUBLIC SPEAKING PADA KARYAWAN ALFADH PARFUM

This research investigates effective communication strategies in improving the public speaking skills of Alfadh Parfum employees. In the competitive business world, public speaking ability is a very important skill for companies like Alfadh Parfum. This study uses a qualitative and quantitative approach, collecting data through in-depth interviews and structured surveys from employees who took part in the company's public speaking training program. The research results show that an integrated approach involving intensive training, simulation practice sessions, and direct feedback from trainers and colleagues is very effective in improving public speaking skills. Additionally, the implementation of communications technology such as video conferencing platforms enables remote training, allowing employees to participate without geographic restrictions. This approach not only helps overcome public speaking anxiety but also strengthens self-confidence and the ability to convey messages clearly. This research underlines the importance of targeted and integrated communication strategies in improving public speaking, producing Alfadh Parfum employees who are more confident, effective and charming in communicating with various parties, which ultimately improves the company's reputation.

Optimal Sparse Array Design for Airborne Weather Radar With Integrated Communications

Optimal Sparse Array Design for Airborne Weather Radar With Integrated Communications

One-Bit Transceiver Optimization for MmWave Integrated Sensing and Communication Systems

One-Bit Transceiver Optimization for MmWave Integrated Sensing and Communication Systems

Empowering 6G Ambient Intelligence with Terahertz Integrated Sensing and Communications

Empowering 6G Ambient Intelligence with Terahertz Integrated Sensing and Communications

Distributed UAV Swarm for Device-Free Integrated Sensing and Communication Relying on Multi-Agent Reinforcement Learning

Distributed UAV Swarm for Device-Free Integrated Sensing and Communication Relying on Multi-Agent Reinforcement Learning

Optimal Resource Allocation for Integrated Sensing and Communications in Internet of Vehicles: A Deep Reinforcement Learning Approach

Optimal Resource Allocation for Integrated Sensing and Communications in Internet of Vehicles: A Deep Reinforcement Learning Approach

Secure Beamforming and Radar Association in CoMP-NOMA Empowered Integrated Sensing and Communication Systems

Secure Beamforming and Radar Association in CoMP-NOMA Empowered Integrated Sensing and Communication Systems