摘要： 提出针对无线传感器网络分层结构的一种数据可靠传输算法。采用综合节点剩余能量、缓冲区可用率、信道错误率3因素的可靠路径与备选可靠路径策略，依据缓冲区空闲情况进行预拥塞节点检测，进行路径前后疏导缓解拥塞。对簇头节点和非簇头节点的失效进行分类处理。仿真结果证明，该算法可提高数据传输的可靠性。

关键词: 可靠性, 信道错误率, 簇头, 梯度, 拥塞

Abstract: This paper proposes a reliable data transport algorithm for cluster structure in Wireless Sensor Network(WSN). It includes: the choice of reliable routing and candidate routing considering residual node energy, buffer usability and channel error ratio, the detection of pre-congestion according to the spare space of a node buffer and the following catabatic methods, category handling the failure of cluster node or others. Simulation result shows that the algorithm improves the reliability of data transport.

Key words: reliability, channel error ratio, cluster head, grads, congestion

中图分类号: 

• TP393