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Constructing energy-efficient multicast trees with delay constraints in ad hoc networks

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1 Author(s)
Wen-Lin Yang ; Dept. of Inf. Technol., Nat. Pingtung Inst. of Commerce, Taiwan

In this paper, we study the problem concerning how to construct a delay-constrained multicast tree with minimum power-consumption so that real-time multimedia applications can be supported in ad hoc wireless networks. Based on a number of link-replacing strategies, we present a heuristic called ELR algorithm for determining a multicast tree for the problem. Our ELR algorithm begins with a two-level multicast tree and then iteratively replaces the high-power links with lower-power links in order to reduce the total power required by the multicast tree. The simulation results show that for a given delay constraint the multicast tree found by our ELR algorithm requires less power than the one found by the previous published method.

Published in:

Advanced Information Networking and Applications, 2005. AINA 2005. 19th International Conference on  (Volume:1 )

Date of Conference:

28-30 March 2005