Phan, Khoa T. and Jiang, Hai and Tellambura, Chintha and Vorobyov, Sergiy A. and Fan, Rongfei (2008) Joint medium access control, routing and energy distribution in multi-hop wireless networks. IEEE Transactions on Wireless Communications, 7 (12, Pa). pp. 5244-5249. ISSN 1536-1276 http://resolver.caltech.edu/CaltechAUTHORS:PHAieeetwc08
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It is a challenging task for multi-hop wireless networks to support multimedia applications with quality-ofservice (QoS) requirements. This letter presents a joint crosslayer optimization approach, i.e., joint medium access control, routing, and energy distribution. User satisfaction represented by user utility is maximized within the required network lifetime, given the constraints on the total available energy in the network and the minimum user rates. Although the resulting optimization problem is nonlinear and nonconvex, we prove that it is approximately equivalent to a two-step convex problem. Furthermore, we prove that the problem of maximizing network utility within achievable network lifetime is quasiconvex.
|Additional Information:||© Copyright 2008 IEEE. Reprinted with permission. Manuscript received November 8, 2007; revised March 30, 2008 and July 4, 2008; accepted July 17, 2008. The associate editor coordinating the review of this letter and approving it for publication was G. Xue. This work was supported in part by the Natural Science and Engineering Research Council (NSERC) of Canada and Alberta Ingenuity, Alberta, Canada. The authors would like to thank the anonymous reviewers for their constructive comments and suggestions which helped to improve the quality of the manuscript.|
|Subject Keywords:||Cross-layer design; medium access control; routing; energy distribution; convexity|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Archive Administrator|
|Deposited On:||16 Jan 2009 23:37|
|Last Modified:||26 Dec 2012 10:44|
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