Validation of mobile multihop relay network model and continuous connectivity analysis

Nurul Nazirah binti Mohd Imam Ma

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Type :	article
Subject :	N Fine Arts
Main Author :	Nurul Nazirah binti Mohd Imam Ma
Additional Authors :	Irdayanti binti Mat Nashir
Title :	Validation of mobile multihop relay network model and continuous connectivity analysis

Place of Production :	Tanjong Malim
Publisher :	Fakulti Seni, Komputeran dan Industri Kreatif
Year of Publication :	2019
Corporate Name :	Universiti Pendidikan Sultan Idris
PDF Full Text :	The author has requested the full text of this item to be restricted.

Abstract : Universiti Pendidikan Sultan Idris

Mobile Multihop Relay (MMR) network is an attractive and low-cost solution for expanding service coverage and enhancing throughput of the conventional single hop network. However, mobility of Mobile Station (MS) in MMR network might lead to performance degradation in terms of Quality of Service (QoS). Selecting an appropriate Relay Station (RS) that can support data transmission for high mobility MS to enhance QoS is one of the challenges in MMR network. The main goal of the work is to develop and enhance relay selection mechanisms that can assure continuous connectivity while ensuring QoS in MMR network using NCTUns simulation tools. The approach is to develop and enhance a relay selection for MS with continuous connectivity in non-transparent relay. In this approach, the standard network entry procedure is modified to allow continuous connectivity with reduced signaling messages whenever MS joins RS that is out of Multihop Relay Base Station (MRBS) coverage and the relay selection is based on Signal to Noise Ratio (SNR). The QoS performances of the proposed relay selections are in terms of throughput and average end-to-end (ETE) delay. The proposed network model of MMR network is analyzed mathematically using queuing theory approach. Theoretical analysis of the M/D/1 queuing model is compared with the simulation to validate that the simulation is working correctly and thus can be used as an evaluation tool to study the performance of the proposed relay selection mechanism in non-transparent relay MMR network. The result shows that the simulation performances conform to the theoretical value very closely, which prove the consistency of the simulation platform. The findings for the proposed relay selection in non-transparent relay shows that the throughput degradation between low mobility MS (30m/s) and high mobility MS (50m/s) is only about 2.0%. The proposed relay selection mechanisms can be applied in any high mobility multi-tier cellular network.

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