【摘要】 如何有效利用节点能量并延长网络的生存期是研究无线传感器网络的一个核心问题。对比拓扑控制策略,能量有效路由策略以及休眠管理的研究,提出有效能量最小化策略(MEPP)。该策略结合前3种类型策略的特点,在网络中活动节点和传输能耗配置的基础上,将降低节点能耗视为求解一般最优化问题。最后给出一个有效能量最小化策略的算法,达到延长网络生存期的目的。更多还原

【Abstract】 How to use limited power efficiently and maximize the network life is an important topic in the research of Wireless Sensor Networks(WSNs).This paper proposes the Minimized Efficient Power Protocols(MEPP) approach to energy conservation in wireless sensor networks.In sharp contrast to earlier research that treats topology control,power-aware routing,and sleep management in isolation,MEPP integrates them as a joint optimization problem in which the power configuration of a network consists of a set of active nodes and the transmission powers of the nodes.Finally,it shows the approximation algorithms with provable performance bounds compared to the optimal solution,which can prolong the networks’ lifetime.更多还原