NDLI: A Link Reliability-Aware Route Maintenance Mechanism for Mobile Ad Hoc Networks

Content Provider	IEEE Xplore Digital Library
Author	Dong Shi Xinming Zhang Xuemei Gao Wenbo Zhu Fengfu Zou
Copyright Year	2007
Description	Author affiliation: Univ. of Sci. & Technol. of China, Hefei (Dong Shi; Xinming Zhang; Xuemei Gao; Wenbo Zhu; Fengfu Zou)
Abstract	Hosts in mobile ad hoc networks (MANET) are capable of self-configuration and they can migrate at will, which makes the network topology highly dynamic. Thus, routes may break easily since the data session fails when one node moves out of the sensing range of its partner. Besides that, if overused, nodes tend to drain their power completely due to the limited battery life. That will result in a short life span of the network, which means serious performance degradation. The routing maintenance in traditional routing protocols such as dynamic source routing (DSR) is triggered only after an active routing path breaks and in most cases, is realized by a route discovery process to build a new route. This kind of "after-the-event" routing maintenance raises the overhead heavily since considerable cost has to be spent in detecting the path break and establishing a new one. In this paper, we propose a new routing maintenance mechanism named link reliability-aware route maintenance (LRRM). Implemented on DSR, our mechanism tries to evaluate the link reliability of each hop actively and replace those debilitated nodes with robust ones through a local recovery if necessary. After that, the route change shall be informed to the source node by unicasting. Simulation results have proven LRRM's validity in extending network lifetime. Our mechanism also outperforms original DSR in throughput, delivery ratio and average end-to-end latency.
Starting Page	8
Ending Page	8
File Size	315420
Page Count	1
File Format	PDF
ISBN	0769528058
DOI	10.1109/ICN.2007.3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-04-22
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Maintenance Mobile ad hoc networks Network topology Batteries Degradation Routing protocols Costs Robustness Throughput Delay routing maintenance lifetime local recovery mobile ad hoc networks
Content Type	Text
Resource Type	Article

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