May 22
The IUP Journal of Telecommunications
Focus
This issue has three papers focusing on performance evaluation of the mobile networks in terms of throughput, congestion management and energy efficiency in MANET systems.
In a high performance, 5G mobile network, multimedia data handling requires better Quality-of-Service (QoS) which works under suitable statistical delay bounds. These systems use error-control technology involving Finite Block length Coding (FBC), assuring exacting statistical QoS standards in terms of both latency and reliability. The first paper, "Performance of NOMA in 5G Mobile Wireless Networks" by M Rachana and R V S Satyanarayana, proposes a heterogeneous analytical-based resource allocation method for 5G mobile networks operated in NOMA, including massive Multiple-Input Multiple-Output (MIMO) system. It develops the NOMA with massive-MIMO scheme-based 5G wireless mobile network model to maximize the performance and thereby achieves better interference management and high capacity.
The second paper, "Performance Evaluation of Congestion Control Mechanism of TCP Variants Over Wired and Wireless Networks Using Various Applications" by Potturi G V S Asrith and Sasikala Devi N, simulates and compares different TCP variants on wired and wireless networks and concludes through the simulated data and graphs that some specific congestion behavior is observed corresponding to different TCP variants. The TCP variants are implemented in Linux and their performances in terms of packet delivery ratio, delay and throughput have been evaluated using NS2 network simulator.
In a wireless computer network, radio waves are used to connect devices to the Internet and also to a targeted core network in various network applications. Mobile Ad Hoc Network (MANET) consisting of a set of mobile nodes (hosts) are connected by wireless links under different network topologies in such a way so as to reduce the number of rebroadcast packets, while maintaining adequate retransmission and packet reachability. The last paper is "An Optimized and Energy-Efficient AODV Routing Protocol for MANET Based on Dynamic Forwarding Probability" by Hailu Gizachew Yirga and Gizatie Desalegn Taye. The Route Request (RREQ) packets are randomly controlled to increase the network lifetime and hence to reduce the packet loss in the flooding algorithm. The results are assessed using various network performance factors after implementing and integrating them into Network Simulator. The paper concludes that the proposed technique effectively reduces RREQ propagation messages, enhances network throughput and minimizes the routing overhead when compared to regular and modified AODV protocols.
Consulting Editor
|
|
|||
| Article | Price (₹) | ||
| Performance of NOMA in 5G Mobile Wireless Networks |
100
|
||
| Performance Evaluation of Congestion Control Mechanism of TCP Variants Over Wired and Wireless Networks Using Various Applications |
100
|
||
| An Optimized and Energy-Efficient AODV Routing Protocol for MANET Based on Dynamic Forwarding Probability |
100
|
||
Performance of NOMA in 5G Mobile Wireless Networks
To efficiently handle multimedia data transmissions across 5G mobile wireless networks, Quality-of-Service (QoS) techniques have been developed with statistical delay bounds. Recent developments in error-control technology have made Finite Blocklength Coding (FBC) an effective tool in the non-asymptotic regime assuring exacting statistical QoS standards in terms of both latency and reliability for the Ultra Reliable Low-Latency Communications (URLLC) in 5G networks, unlike Shannon's theorem which involves infinite blocklength. In order to address the aforementioned issues, under both asymptotic and non-asymptotic conditions, the paper proposes heterogeneous analytical-based resource allocation methods for 5G mobile networks predicated on Non-Orthogonal Multiple Access (NOMA) with massive Multiple-Input Multiple-Output (MIMO). It develops the NOMA with massive MIMO scheme-based 5G wireless mobile network model to maximize the performance and achieve interference management, high capacity, adaptive and intelligent optimization for the outlined strategies. It also executes simulation tests to demonstrate how well the suggested schemes perform in terms of ensuring heterogeneous statistical delay/error rate constrained QoS when compared to other current methods.
Performance Evaluation of Congestion Control Mechanism of TCP Variants Over Wired and Wireless Networks Using Various Applications
Transmission Control Protocol (TCP) is a communications standard that enables application programs and computing devices to exchange messages over a network. Since the 1970s, several TCP variants have been introduced to deal with the fast increasing network capacities, especially in high Bandwidth Delay Product (high-BDP) networks. The different variants are: TCP Tahoe, TCP Reno, TCP New Reno, TCP Linux, TCP Vegas, TCP Sack, etc. TCP provides the quality of performing consistently well and End-To-End (ETE) delivery of packets in the network. Each of these TCP variants has its own mechanism against the problem, some of these approaches can estimate available bandwidths and some react based on network loss and/or delay changes. It is essential to perform a comparison between the high-speed TCP variants that have a high standard of importance, especially after a quick growth of networks bandwidths. In this paper, TCP variants that are implemented in Linux have been evaluated using NS2 network simulator. This performance evaluation presents the advantages and disadvantages in terms of Packet Delivery Ratio (PDR), ETE delay and throughput using different applications like File Transfer Protocol (FTP), Simple Mail Transfer Protocol (SMTP) and Hyper Text Transfer Protocol (HTTP).
An Optimized and Energy-Efficient AODV Routing Protocol for MANET Based on Dynamic Forwarding Probability
The paper proposes an optimized and energy-efficient Ad Hoc On-Demand Distance Vector (AODV) routing protocol for Mobile Ad Hoc Network (MANET) based on dynamic forwarding probability, in which the Route Request (RREQ) packets are randomly controlled to increase the network lifetime and reduce packet loss in the flooding algorithm. The results are assessed using various network performance factors after implementing and integrating them into Network Simulator (NS2). According to the simulation findings, the proposed technique effectively reduced RREQ propagation messages. It is more efficient, has a longer network lifetime, and uniformly utilizes nodal residual energy, enhancing network throughput and minimizing routing overhead when compared to regular and modified AODV protocols.