Tree-Based Distributed Multicast Algorithms for Directional Communications and Lifetime Optimization in Wireless Ad Hoc Networks

Autor: Yang OliverWW, Guo Song, Leung VictorCM
Jazyk: angličtina
Rok vydání: 2007
Předmět:
Zdroj: EURASIP Journal on Wireless Communications and Networking, Vol 2007, Iss 1, p 098938 (2007)
Druh dokumentu: article
ISSN: 1687-1472
1687-1499
Popis: We consider the problem of maximizing the network lifetime in WANETs (wireless ad hoc networks) with limited energy resources using omnidirectional or directional antennas. Unlike most solutions that use a centralized multicast algorithm, we use graph-theoretic approach to solve the problem in a distributed manner. After providing a globally optimal solution for the special case of single multicast session using omnidirectional antenna, this approach leads us to a group of distributed algorithms for multiple multicast in WANETs using directional antennas. Experimental results show that our distributed multicast algorithms for directional communications outperform other centralized multicast algorithms significantly in terms of network lifetime for both single-session and multiple-session scenarios.
Databáze: Directory of Open Access Journals
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