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Mathematical Problems in Engineering
Volume 2014 (2014), Article ID 135945, 12 pages
Research Article

Energy Effective Congestion Control for Multicast with Network Coding in Wireless Ad Hoc Network

1Department of Computer and Technology, Anhui Normal University, Wuhu 241002, China
2Department of Mathematics and Computing, University of Southern Queensland, Toowoomba, QLD 4350, Australia
3College of Computer, Nanjing University of Posts and Telecommunications, Nanjing 210003, China

Received 16 February 2014; Accepted 18 April 2014; Published 22 May 2014

Academic Editor: Changzhi Wu

Copyright © 2014 Chuanxin Zhao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


In order to improve network throughput and reduce energy consumption, we propose in this paper a cross-layer optimization design that is able to achieve multicast utility maximization and energy consumption minimization. The joint optimization of congestion control and power allocation is formulated to be a nonlinear nonconvex problem. Using dual decomposition, a distributed optimization algorithm is proposed to avoid the congestion by control flow rate at the source node and eliminate the bottleneck by allocating the power at the intermediate node. Simulation results show that the cross-layer algorithm can increase network performance, reduce the energy consumption of wireless nodes and prolong the network lifetime, while keeping network throughput basically unchanged.