摘要
针对无线传感器网络中多源多基站的最大生命期问题,提出一种基于最优化理论的网络通信模型。根据无线传感器网络能量限制和数据流量守恒原则建立整数非线性规划模型,以网络最大生命期为最优目标,将能量和带宽作为限制的多约束条件,利用最优化技术中的分布式算法求解该模型。仿真结果表明,在多基站环境中,该模型能够延长网络生命期。
Aiming at the maximum lifespan problem of multiple source and base stations in Wireless Sensor Network（WSN）, this paper proposes a communication model based on optimization theory. It establishes integer nonlinear programming model according to the WSN data flow restrictions and energy conservation principle, with the maximum lifespan network for the best goal, makes energy and bandwidth as a limitatidn on the constraint conditions, uses optimization technology of distributed algorithm to solve the model. Simulation results show that, in many of the base station enyironment, this model can prolong the network life period.
出处
《计算机工程》
CAS
CSCD
2012年第6期113-115,共3页
Computer Engineering
基金
国家部委基金资助项目
关键词
无线传感器网络
最优化理论
最大生命期
多基站
投影次梯度算法
Wireless Sensor Network（WSN）
optimization theory
maximum lifetime
multiple base stations
projection subgridient algorithm
