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Analysis of MANET dynamic source routing and its performance enhancements
Author(s) -
Hou TingChao,
Chan MingChieh,
Wu ChienMin
Publication year - 2014
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.2512
Subject(s) - computer science , computer network , unicast , dynamic source routing , dsrflow , destination sequenced distance vector routing , throughput , link state routing protocol , routing protocol , zone routing protocol , routing (electronic design automation) , wireless routing protocol , distributed computing , wireless , telecommunications , multicast
SUMMARY Since the inception of the dynamic source routing (DSR) protocol for mobile ad hoc networks, several enhancements have been proposed, along with other competing routing protocols. All of them provide different degrees of throughput improvement under different scenarios. In this paper, we use DSR as a base, diagnose the contribution of its constituent components, and provide the reason why certain routing enhancements can increase the throughput and under what conditions. A major finding of the study is that the broadcast mechanism used in propagating route request and route error messages has a significant impact on how routing behaves. We also show that unicast route error report and preventive cache update improve throughput at different sides of the mobility spectrum. Finally, we show that aggressive buffer combined with route management provides the best performance improvement on the entire mobility and loading spectrum. Copyright © 2013 John Wiley & Sons, Ltd.