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| Rate Adaptation for Network Lifetime Maximization in Wireless Ad hoc Networks |
| Wang Qing-shan①②; Xu Yin-long①; Xu Chen-guang①; Zhang Chun-peng① |
| ①Anhui Province-MOST Co-Key Laboratory of High Performance Computing and Its Applications, Department of Computer Science and Technology, USTC, Hefei 230027, China; ②School of Sciences, Hefei University of Technology, Hefei 230009, China |
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Abstract According to wireless Ad hoc networks being able to adjust transmission rate, this paper studies the rate adaptation for network lifetime maximization. The problem is formulated as a mixed integer nonlinear programming, which can be solved using branch and bound methods. Further, a greedy distributed Maximizing Network Lifetime Rate Adaptation Algorithm (MNLRAA) is present. MNLRAA tries to selects the lower transmission rates for each link based on the traffic and the remaining energy at nodes so as to reduce energy consumption. The simulation results show that MNLRAA can improve more than 20% the network lifetime than the classic technique that all nodes transmit packet with the highest rate.
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Received: 23 November 2006
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2008, Vol. 30 
