基于简单路由的无线传感器网络非均匀成簇协议

以LEACH为代表的成簇算法，极大地提高无线传感器网络寿命等性能。但这些算法存在一些问题，导致其影响网络性能的进一步提高。在现有研究的基础上，将非均匀成簇策略成功运用于簇头直接向sink发送数据的简单路由环境，通过理论计算得到距离sink不同位置簇头的覆盖半径。提出基于能量耗散比的成簇算法，该算法能够保证当选簇头为局部最优，簇头分布更为合理，并结合分均匀分簇策略提出簇形成算法。通过模拟仿真实验验证该算法的有效性，较LEACH将网络寿命提高50%以上，能够保证网络中簇头个数稳定，并且不同位置簇头节点能耗均匀。

Uneven Clustering Protocol of Wireless Sensor Networks Based on Simple Routing

Clustering algorithms, such as LEACH, can greatly improve the performance of the wireless sensor network lifetime. These algorithms exist some problems, which lead that it＆#39;s hard to the further improvement of its network performance. Analyzes some existing clustering algorithms, successfully applies uneven clustering to simple routing networks, and gets the cluster-heads＆#39; coverage radius of different positions by theoretical calculation. Proposes a clustering algorithm based on percentage of energy dissipation, which is able to ensure that the elected head is the local optimum distribution, and the distribution of heads is more reasonable. Simulation results show that the algorithm is better than existing algorithms in stable number of cluster head and distribution of heads. It can improve the networks performance of LEACH more than 50%.