Abstract
Recently, cross-layer routing design for cognitive radio networks (CRNs) has been studied widely. However, none of the previous literatures discuss multi-link interference (in routing protocol design), which results in queuing delay and backoff delay. A large queuing and backoff delay will reduce the transmission efficiency of a link and increase the cumulative end-to-end delay. In this paper, we first propose a multi-link interference model, and derive the transmission efficiency of a link. Then, in order to improve the transmission efficiency (thus the quality of service) under multi-link interference situation, we propose a source routing protocol based on on-demand routing and dynamic channel assignment. The channel assignment tries to maximize the transmission efficiency of links along the selected path. Hence, our proposed routing protocol can reduce the average cumulative end-to-end delay of all flows and increase the packet delivery ratio.
Keywords: Routing protocol, quality of service (QoS), transmission efficiency, multi-link interference, cumulative end-to-end delay, packet delivery ratio.
International Journal of Sensors, Wireless Communications and Control
Title:QoS-Adaptive Routing Protocol Design for Multi-Hop Cognitive Radio Networks Considering Multi-Link Interference
Volume: 1 Issue: 2
Author(s): Xin-Lin Huang, Gang Wang, Qing-Quan Sun and Zhuo-Ran Cai
Affiliation:
Keywords: Routing protocol, quality of service (QoS), transmission efficiency, multi-link interference, cumulative end-to-end delay, packet delivery ratio.
Abstract: Recently, cross-layer routing design for cognitive radio networks (CRNs) has been studied widely. However, none of the previous literatures discuss multi-link interference (in routing protocol design), which results in queuing delay and backoff delay. A large queuing and backoff delay will reduce the transmission efficiency of a link and increase the cumulative end-to-end delay. In this paper, we first propose a multi-link interference model, and derive the transmission efficiency of a link. Then, in order to improve the transmission efficiency (thus the quality of service) under multi-link interference situation, we propose a source routing protocol based on on-demand routing and dynamic channel assignment. The channel assignment tries to maximize the transmission efficiency of links along the selected path. Hence, our proposed routing protocol can reduce the average cumulative end-to-end delay of all flows and increase the packet delivery ratio.
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Cite this article as:
Huang Xin-Lin, Wang Gang, Sun Qing-Quan and Cai Zhuo-Ran, QoS-Adaptive Routing Protocol Design for Multi-Hop Cognitive Radio Networks Considering Multi-Link Interference, International Journal of Sensors, Wireless Communications and Control 2011; 1 (2) . https://dx.doi.org/10.2174/2210327911101020088
DOI https://dx.doi.org/10.2174/2210327911101020088 |
Print ISSN 2210-3279 |
Publisher Name Bentham Science Publisher |
Online ISSN 2210-3287 |
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