摘要
无线传感器网络对节能有着很高的要求,拓扑控制能够优化网络拓扑,提高无线信道的空间复用率,是提高无线传感器网络能量效率的有效方法。文中提出了一种基于博弈论的无线传感器网络拓扑控制算法,设计了一个与节点度和发射功率有关的收益函数,使拓扑控制博弈存在纳什均衡,网络总收益函数最大,网络的能量效率最高。
Energy saving is very important in Wireless Sensor Networks （WSN）. Topology control, which can optimize the network topology and improve the reuse of wireless channel, is an effective method for raising the energy efficiency for WSN. In this paper, a topology control algorithm based on game theory for WSN is presented, and a utility function related with the degree and transmission power of nodes is designed, which makes the topology control game possess at least one Nash Equilibrium （NE）. In this case, the total utility of the sensor network is up to the maximum and the energy efficiency is the highest.
出处
《通信技术》
2008年第4期99-101,共3页
Communications Technology
基金
国家自然科学基金资助项目(60672079)
江苏自然科学基金资助项目(BK2007002)
军队预研项目(XBLY-2007-120)
关键词
无线传感器网络
拓扑控制
能量效率
博弈论
纳什均衡
wireless sensor networks
game theory
topology control
energy efficiency
nash equilibrium
