Utility Constrained Energy Minimization In Aloha Networks

Details Utility Constrained Energy Minimization In Aloha Networks Utility Constrained Energy Minimization In Aloha Networks

2010-11-23

arxiv.org/abs/1011.5122v1

Computer Science

Information Theory

5 pages, ccnc07

Scientific paper

In this paper we consider the issue of energy efficiency in random access networks and show that optimizing transmission probabilities of nodes can enhance network performance in terms of energy consumption and fairness. First, we propose a heuristic power control method that improves throughput, and then we model the Utility Constrained Energy Minimization (UCEM) problem in which the utility constraint takes into account single and multi node performance. UCEM is modeled as a convex optimization problem and Sequential Quadratic Programming (SQP) is used to find optimal transmission probabilities. Numerical results show that our method can achieve fairness, reduce energy consumption and enhance lifetime of such networks.

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