Dynamic queue utilization based MAC for multi-hop ad hoc networks

MARCHANG, Jims, GHITA, Bogdan and LANCASTER, David (2015). Dynamic queue utilization based MAC for multi-hop ad hoc networks. Infocommunications Journal, 7 (3), 25-32.

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Abstract

The end-to-end throughput in single flow multi-hop Ad Hoc networks decays rapidly with path length. Along the path, the success rate of delivering packets towards the destination decreases due to higher contention, interference, limited buffer size and limited shared bandwidth constraints. In such environments the queues fill up faster in nodes closer to the source than in the nodes nearer the destination. In order to reduce buffer overflow and improve throughput for a saturated network, this paper introduces a new MAC protocol named Dynamic Queue Utilization Based Medium Access Control (DQUB-MAC). The protocol aims to prioritise access to the channel for queues with higher utilization and helps in achieving higher throughput by rapidly draining packets towards the destination. The proposed MAC enhances the performance of an end-to-end data flow by up to 30% for a six hop transmission in a chain topology and is demonstrated to remain competitive for other network topologies and for a variety of packet sizes.

Item Type:	Article
Research Institute, Centre or Group - Does NOT include content added after October 2018:	Cultural Communication and Computing Research Institute > Communication and Computing Research Centre
Page Range:	25-32
Depositing User:	Jims Marchang
Date Deposited:	01 Aug 2017 13:33
Last Modified:	18 Mar 2021 02:16
URI:	https://shura.shu.ac.uk/id/eprint/15853

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