High-throughput Data Transfer Research Articles

Improving Load Balancing and Scalability by Implementing Path Selection on BGP Using Multi SD-WAN

This research paper introduces three key problems relevant to data movement across the multi-domains. They are (1) delays in data transmission because of the failures of the links, (2) high throughput data transfer over large networks due to the worst path selection using the BGP, and (3) the efficient distribution of data (Load balancing and scalability). All three problems introduce scalability, load balancing and fail-over concerns with respect to the network architecture. The recent steps taken by SDN due to the introduction and popularity of OpenFlow provide a new way to approach these problems. This research paper proposes and demonstrates solutions to the aforementioned problems using scalable approaches introduced in SDN Controller. This research paper details the elements that influence BGP decisions on path selection using SDN infrastructure. Based on the features, a testbed using NS3 has been designed and implemented which explores ideas related to the domain-to-domain data transmission using SDN. The implementation of the Mesh topology of wires Domains was completed using NS3. This paper discusses also OpenFlow Service and the SDN involvement on BGP improvement over long-distance networks and the end users who wish to obtain the data in a timely manner with minimal effort.

Service-Oriented LSTM Multi-Criteria RAT Selection Scheme for Vehicle-to-Infrastructure Communication

The evolution towards future Intelligent Transportation Systems (ITS) is significantly influenced by enabling telematics and safety services for vehicular use-cases, especially for autonomous driving. These vehicular use-cases have their own network requirements, with a variety of instantaneous requirements and dynamic characterizations that make delivering data via a single Radio Access Technology (RAT) severely challenging. By utilizing current and future network context and vehicular use-case requirements, the RAT selection scheme must select the optimum network that guarantees the continuity and high throughput data transfer. Moreover, the consideration of on-time stochastic queue backlog of all use-cases in each RATs, while maximizing throughput is important for a reliable vehicular use-case deployment. In this paper, we developed a Service-Oriented Joint LSTM Multi-Criteria (SOLMC) RAT selection scheme for Vehicle-to-Infrastructure (V2I) networks. The objective of this scheme is to maximize the overall network throughput while reducing the current stochastic queue backlog in deployed RATs. LSTM prediction technique is used as a network filter process that rejects the worst channel quality before the initialization RAT selection scheme. Transmission capacity, connectivity time, data delivery cost, and queue backlog are the decision criteria in our proposed SOLMC RAT scheme. In particular, to characterize the importance of these criteria factors, we construct Analytical Hierarchy Process (AHP) for each use-case. Extensive simulations are carried out under different network context conditions. The results demonstrate that the SOLMC scheme can significantly achieve up to 47.5% network throughput maximization and 20.42% packet delivery ratio improvement, using lower queue length compared to nearest-RAT-based selection. In addition, implementing LSTM in SOLMC improves the total average throughput by up to 3.1% and 6% packet delivery ratio.

Performance Analysis of Low-Cost Printed Antenna Array Elements for 5G LOS-MIMO Arrays at 60 GHz

Design of 5G and beyond 5G telecommunication systems relies on utilization of diverse solutions for different envisioned applications and different constituents of an entire system. One of the research directions is the utilization of a global unlicensed millimeter wave frequency band from 57 to 66 GHz for the high throughput data transfer. Apart from the wide spectrum availability at 60 GHz, there are many problems to be resolved before the concept can become fully functional; one of the requirements is the design of low-cost, energy efficient, wideband antennas with enhanced gain, capable of overcoming propagation losses at 60 GHz. We investigate the benefits and shortcomings of four types of low-cost, printed antennas as the constituents of sub-array elements for the large line-of-sight MIMO arrays. The results are put into perspective by comparison with the most used low-cost microstrip patch sub-array element. The state-of-the-art method-of-moments computations were employed in the highly accurate analyses of the four compared antenna array elements. Although the gains of such sub-arrays can be boosted by the increases in antenna numbers, this does not hold for the efficiency or bandwidth of operation; therefore, radiation patterns and characteristics at the level of individual antennas cannot be ignored as these translate directly into the behavior of an array. Careful choice of antenna type and initial efforts in the sub-array design should be seen as a necessary first step in the design of a large line-of-sight MIMO array of superior characteristics.

High-Performance Photoinduced Memory with Ultrafast Charge Transfer Based on MoS2 /SWCNTs Network Van Der Waals Heterostructure.

Photoinduced memory devices with fast program/erase operations are crucial for modern communication technology, especially for high-throughput data storage and transfer. Although some photoinduced memories based on 2D materials have already demonstrated desirable performance, the program/erase speed is still limited to hundreds of micro-seconds. A high-speed photoinduced memory based on MoS2 /single-walled carbon nanotubes (SWCNTs) network mixed-dimensional van der Waals heterostructure is demonstrated here. An intrinsic ultrafast charge transfer occurs at the heterostructure interface between MoS2 and SWCNTs (below 50fs), therefore enabling a record program/erase speed of ≈32/0.4ms, which is faster than that of the previous reports. Furthermore, benefiting from the unique device structure and material properties, while achieving high-speed program/erase operation, the device can simultaneously obtain high program/erase ratio (≈106 ), appropriate storage time (≈103 s), record-breaking detectivity (≈1016 Jones) and multibit storage capacity with a simple program/erase operation. It even has a potential application as a flexible optoelectronic device. Therefore, the designed concept here opens an avenue for high-throughput fast data communications.

A programmable policy engine to facilitate time-efficient science DMZ management

The Science DMZ model employs dedicated network infrastructures and advanced software techniques for large-volume scientific research traffic flows targeting high-throughput and low-latency data transfer. However, current Science DMZ framework lacks of efficient means of user-intent expression and suffers from slow service-delivery due to the manual work involved in the management loop. As a result, a programmable interface that facilitates user–administrator communication in a time-efficient manner is highly demanded. In this paper, we introduce FLowell, an enhanced SDN-powered Science DMZ model deployed on our campus network. Moreover, we propose a programmable policy engine atop the SDN controller that allows network administrators to implement configuration policies in order to manage the network, while simultaneously offering rapid response time network resource request policies for end users. Our experiment results show that user intent in FLowell can be responded and serviced within 1 s. In addition, FLowell reduces the network latency for the research network path by 35%, and boost the disk-to-disk throughput by up to the 10 Gbps line rate.

PAPR Reduction Using Eight Factors Rotating Phase Shift Technique Based on Local Search Algorithm in OFDM

Orthogonal frequency division multiplexing (OFDM), Multi-Carrier (MC) system, is a popular standard in wireless communication for its enabling high throughput data transfer. However, the MC signal usually has a high peak-to-average power ratio (PAPR), which involves a wide-dynamic-range, power consuming amplifier. Whenever the signal height is greater than the amplified linear region, the signal is distorted. In this paper, propose a novel scheme that rotating phase shift (RPS) technique based signal scrambling is proposed to reduce PAPR in OFDM systems. In addition, the pilot phase signal is picked out by RPS technique applied new algorithm the local research to alleviate scrambling information corruption and show discernible advancements. So, our technique improves over the existing ones in the same category. The transmitted signal of OFDM is tested with Mobile WiMAX IEEE 802.16e standard, that compared the various phase shift with a slight computational complexity is studied. The simulation result shows that original signal at pilot-assisted QAM is capable of bringing down the electrical PAPR by about 3.5 times as a modest complementary cumulative distribution function (CCDF) point of 10-3 for M=8 low complexity. In addition, the best phase-shift factor was selected to reduce the monetary value of computational complexity.

Probabilistic Assessment of High-Throughput Wireless Sensor Networks.

Structural health monitoring (SHM) using wireless smart sensors (WSS) has the potential to provide rich information on the state of a structure. However, because of their distributed nature, maintaining highly robust and reliable networks can be challenging. Assessing WSS network communication quality before and after finalizing a deployment is critical to achieve a successful WSS network for SHM purposes. Early studies on WSS network reliability mostly used temporal signal indicators, composed of a smaller number of packets, to assess the network reliability. However, because the WSS networks for SHM purpose often require high data throughput, i.e., a larger number of packets are delivered within the communication, such an approach is not sufficient. Instead, in this study, a model that can assess, probabilistically, the long-term performance of the network is proposed. The proposed model is based on readily-available measured data sets that represent communication quality during high-throughput data transfer. Then, an empirical limit-state function is determined, which is further used to estimate the probability of network communication failure. Monte Carlo simulation is adopted in this paper and applied to a small and a full-bridge wireless networks. By performing the proposed analysis in complex sensor networks, an optimized sensor topology can be achieved.

Ultrafast Streaming Camera Platform for Scientific Applications

X-ray computer tomography is a powerful method for nondestructive investigations in many fields. Three-dimensional images of internal structure are reconstructed from a sequence of two-dimensional projections. The polychromatic high density photon flux of modern synchrotron light sources offer hard X-ray imaging with spatio-temporal resolution up to the micrometer and micrometers range. Existing indirect X-ray image detection systems can be adapted for fast image acquisition by high-speed visible-light cameras. In this paper, we present a platform for custom high-speed CMOS cameras with embedded field-programmable gate array (FPGA) processing. This modular system is characterized by a high-throughput PCI Express (PCIe) interface and efficient communication blocks. It has been used to develop a novel architecture for a self-event trigger that increases the effective image frame rate and reduces the amount of received data. Thanks to a low-noise design, high frame rates in the kilohertz range, and high-throughput data transfer, this camera is well suited for ultrafast synchrotron-based X-ray radiography and tomography. The camera setup is accomplished by high-throughput Linux drivers and a seamless integration in our GPU computing framework.

IKAROS: An HTTP-Based Distributed File System, for Low Consumption & Low Specification Devices

We present the design of IKAROS: an HTTP-based distributed file system, which provides file access scalability and targets a large variety of operating systems and storage systems. IKAROS bypasses the server bottleneck enabling clients to access storage directly, while supporting the usage of multiple types of meta-data. It enables low-consumption, low-specification and low-cost devices to achieve a high throughput data transfer, responding to highly demanding applications. We present data transfer results comparing IKAROS, NFS, PVFS2 and HDFS on a Small Office/Home Office Network Attached Storage infrastructure. We show that IKAROS architecture satisfies and outperforms the data rate demands of high performance applications. We also present experimental results which compare IKAROS and GridFTP using the European Grid Infrastructure. IKAROS performs better in most cases while being competitive at the rest.

Design Requirements for Autonomous Multivehicle Surface-Underwater Operations

AbstractFuture autonomous marine missions will depend on the seamless coordination of autonomous vehicles: unmanned surface vehicles (USVs), unmanned underwater vehicles (UUVs) and unmanned aerial vehicles (UAVs). Such coordination will enable important inter-vehicle applications such as autonomous refueling, high-throughput data transfer and periodic maintenance to extend the mission length. A critical enabling capability is the autonomous capture, retrieval and deployment of a UUV from a USV platform. As a first step toward solving this problem, we propose a performance specification that quantifies the necessary motion compensation required to safely and reliably operate a USV and UUV in concert in the dynamic marine environment. To accomplish this, we use a model-based approach to predict the motion of typical vehicles under the influence of the same sea conditions. We summarize the predictions succinctly using a scalar performance metric, the peak-to-peak vertical displacement, as a function of vehicle type, sea-state and vehicle formation.To substantiate this model-based approach experimentally, we present sea-trial data and compare the empirical observations to model predictions. The results show that although simple three degree-of-freedom models do not capture the full complexity of an actual six degree-of-freedom ship motion, they can prove expedient in an engineering context for quantifying the design requirements of a USV-UUV capture, deployment and retrieval system.

Technology initiatives for the near future in internetworking

The introduction of the Open Computer Network (OCN), providing Internet-like services by NTT, will lead to higher-level demands by users. For example, users will be asking for higher quality, greater functionality, and lower charges for high-speed, high-throughput data transfer. To respond effectively to the wishes of sophisticated and varied users, technology development must be pursued from the user's point of view. For this reason, research and development is being performed on middleware to open up network functions and make it possible for the user and network to cooperate with each other. This article discusses the development of major technologies for achieving an enhanced OCN (next-stage OCN) which should become a catalyst far the future multimedia network, and presents a future vision for the network.