Coverage Efficiency-Based Broadcast Protocol for Asynchronous Wireless Sensor Networks
Coverage Efficiency-Based Broadcast Protocol for Asynchronous Wireless Sensor Networks
复制标题
基于覆盖效率的异步无线传感器网络广播协议
DOI：
10.1109/lwc.2015.2498173
复制
发表时间：
2016-02-01
影响因子：
6.3
通讯作者：
Ding, Qing
中科院分区：
文献类型：
--
作者：
Zhang, Xinming;Yan, Fan;Ding, Qing
在异步无线传感器网络中，由于节点具有独立的休眠/唤醒调度，一个发送方需要多次发送相同的报文，以确保在广播过程中所有的邻居节点都能接收到该报文。此外，接收报文的邻居节点的顺序也会影响广播的性能。在这封信中，我们关注wsn广播过程中的动态，并共同考虑邻居节点的覆盖知识、链路质量和睡眠/唤醒调度信息。首先选择新增覆盖面积大的接收机，加快广播速度。然后，我们对重叠覆盖区域内未容纳的节点选择发送方及其接收方或覆盖顺序，以有效提高广播性能。仿真结果表明，该协议能够有效地降低传输能耗和传输次数。
Due to the independent sleep/wake scheduling of nodes in asynchronous wireless sensor networks (WSNs), a sender should send the same packet several times to make sure all the neighbor nodes can receive the packet in a broadcast process. Moreover, the order of the neighbor nodes receiving the packet has effect on the performance of broadcast. In this letter, we focus on the dynamics in the process of broadcast in WSNs and jointly consider the coverage knowledge, link quality, and sleep/wake scheduling information of neighbor nodes. We first choose a receiver with large newly added coverage area to accelerate the broadcast process. Then, we select the sender and its receiver or the coverage order for the nodes not being accommodated in the overlap coverage area to efficiently improve the broadcast performance. Simulation results have shown that our proposed protocol can reduce energy consumption and number of transmissions.