基于负载平衡因子的传感器网络路由算法研究

Research of protocols based on load balance factor for wireless sensor networks

利用成簇算法延长无线传感器网络的生命周期是一个研究热点,而现有的分层路由成簇算法大多存在负载不均衡的问题。通过研究sLEACH(solar-awareLEACH)协议,分析负载不均衡的原因。提出了基于平衡负载因子优化算法(LBF),使用OMNET++进行仿真实验。结果表明,优化算法使簇头分布更合理,提高了负载均衡度,延长整个网络的工作寿命。

Using clustering algorithm to prolong wireless sensor networks lifetime is an important issue. While the existing hierarchical cluster routing algorithm mostly have disadvantage of unbalanced load. By analyzing the sLEACH protocol, the reason is found why load among clusters is not balanced. Based on these, a new load-balanced factor for clustering algorithm is proposed. Using omnet＋＋ for the simulation, resuhs demonstrate that the new algorithm is effective in distribution of the head nodes and prolong the network lifetime.