High Speed Network Communication Research Articles

Throughput-aware path planning for UAVs in D2D 5G networks

Unmanned Ariel Vehicles (UAVs) face increasing challenges in obtaining sensory data and transferring them to the user even before the completion of their flight for time-critical processing. Traditionally bounded by only area coverage and battery capacity, UAVs now need to meet network QoS requirement when streaming data. The emergence of 5G Device-to-Device (D2D) Networks enables high speed network communication for UAVs to transfer data via D2D links during a flight. The planning of UAV flight paths is now subject to both battery capacity and network quality of service (QoS) constraints. In this paper, we focus on the path planning for UAVs, which stream data to a data receiver machine, under the constraints of full area coverage and network throughput. We present a mathematical model to formulate the issue as a combinatorial optimization problem that attempts to minimize the flight cost of multiple UAVs covering the entire area. We show that the problem is NP-hard, therefore propose a heuristic method to derive the number of UAVs and determine their flight paths. The solution is proved to be bound by K⋅OPT. We conduct simulations to evaluate how the size of the area and the maximal flight distance of a UAV affect the number of UAVs needed, and how the D2D channel parameters affect the link throughputs.

UAV Path Planning With QoS Constraint in Device-to-Device 5G Networks Using Particle Swarm Optimization

Unmanned Ariel Vehicles (UAVs) are tasked to collect sensory data which are typically retrieved after the flight. The emergence of 5G and Device-to-Device (D2D) networks enables high speed network communication for UAVs to transfer data during a flight mission instead of post flight. UAVs are now subject to constraints of area coverage, battery capacity and network quality of service, making their path planning more challenging. In this paper, we formulate the issue as a combinatorial optimization problem which minimizes the flight cost of multiple UAVs covering the entire area. We show this problem is NP-hard, therefore we propose a Particle Swarm Optimization heuristic along with path encoding and local search techniques to solve the problem. Our numerical simulations demonstrate the effectiveness of the approach and how the size of the area and D2D link affect the number of UAVs needed and their flight time.

Extended 3PAKE authentication scheme for value-added services in VANETs

An authentication scheme is inevitable for providing secured communication in high-speed networks like Vehicular Ad-hoc Networks (VANETs), where node speed varies between 10 and 40m/s. The existing authentication schemes providing value-added services in VANETs face many issues such as invalid service requests, Denial of Service (DoS) attacks, verification failures, high transmission overhead and high verification delay. To deal with the exiting issues, an Extended Three Party Password based Authenticated Key Exchange (E-3PAKE) scheme is proposed in the paper. The E-3PAKE has priority based application services that addresses the security and performance issues in existing schemes. The scheme renders a server-client authentication process and batch message dispatch to improve the efficiency of value-added services. The formal analysis done ensures the security enhancement of the scheme and the simulation results prove that the proposed scheme outperforms the existing schemes with respect to transmission overhead, verification and service response delay.

Towards, Building and Implementing a Digital Healthcare System

Healthcare industry is evolving rapidly, increasing the capability of delivering a high quality of service to the public. The rapid development of information technology (IT) has introduced many valuable directions to medical and healthcare sectors. The emergence of high-speed network communication, mobile technology and digital storage has led to a more accessible and convenient way to obtain medical facilities. It is clear that the involvement of IT in the medical sector will provide many more advantages in the development of the medical sector itself. This paper describes a technological approach to deliver health services online by using a distributed system. To make keeping health records paperless and processing them systematically, the system manages Electronic Health Records (EHR) and provides access for them to a wide variety of users such as patients, doctors, medical officers, researchers and students. The accessibility is achieved by implementing various client technologies such as web, mobile and PC to access the system. Since the EHRs are processed by system components implemented in various environments, standardization of health records is implemented along with a standard communication protocol to communicate between system components. Hence, we have introduced a novel approach to healthcare management in IT, and it is intended to contribute as much as possible to the community who are dedicated to IT in healthcare.

Groupcast in Wavelength-Routed WDM Networks

Multiparty communication in high-speed networks is gaining momentum due to the increasing demands of bandwidth-intensive parallel computing and collaborative applications. Groupcast is a generalized multiparty communication paradigm, where multiple collaborative parties deliver traffic streams to all parties participating in the collaboration. This paper investigates the routing and wavelength assignment (RWA) problem for efficient groupcast traffic provisioning in wavelength-division-multiplexing optical networks. The mathematical formulation of groupcast RWA is presented via integer linear programming, and two heuristic algorithms are proposed to efficiently solve the groupcast RWA problem. The first heuristic (in-group per-group-grooming) allows traffic grooming within each collaboration group, while the second heuristic (cross-group per-source-grooming) allows cross-group traffic grooming at common source nodes. The performances of the proposed heuristics with regard to the number of line terminators (consisting of transmitters and receivers) and the number of wavelength channels are compared under various network topologies and traffic configurations

Bison-Net a CAMAC High Speed Block Data Ccmmunication Channel

A high speed network communications station has been developed to serve to interconnect a variety of computers in a multiplexed star network. Each station consists of one control module and two memory modules embodied as CAMAC modules. Transmission is over coaxial lines with typical distances between stations of from 1 to 2 miles.

Bison-Net, A High Speed Block Multiplexer Channel for Interconnecting Computers via CAMAC

A high speed network communications station has been developed to serve to interconnect a variety of computers in a multiplexed star network. Each station consists of one control module and two memory modules embodied as CAMAC modules. Transmission is over coaxial lines with typical distances between stations of from 1 to 2 miles. The transmission rate is 4MHz.