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粮堆中无线传感器网络覆盖保持路由算法的改进与性能比较
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Improvement and performance comparison of coverage preserving routing algorithms for wireless sensor network in grain pile
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    摘要:

    目前国有粮库均在储粮粮堆中架设了传感器网络用于粮情监测,基于分簇的无线传感器网络是其发展方向。在这种网络中,存在着簇首因转发数据量大而负担过重的问题,其直接后果是簇首因电能耗尽而失效,导致产生监测区域的覆盖盲区。本文提出一种新的覆盖保持路由算法,对于单跳通信,根据重新定义的覆盖冗余度选取簇首;对于多跳通信,则根据父节点中覆盖冗余度较高的簇首作为下一跳的路由。与LEACH-Coverage-U算法相比,仿真结果表明,本方法能够显著降低网络耗能,提高网络覆盖率。

    Abstract:

    There have been large amounts of sensor network in state-owned grain depots nowadays, and wireless sensor network based on clustering method is its direction of development. However, there has been a problem that cluster heads have a heavy burden due to transmitting mass data, which finally leads to failure of cluster heads because of energy depletion and generation of a coverage dead zone in the wireless sensor networks. We proposed an improved method for coverage conserving routing algorithms to try to solve the problem. For single hop communication, we selected cluster heads according to redefined coverage redundancy; and for multi-hop, we regarded a cluster head with higher coverage redundancy in father nodes as a route for the next hop. By comparing with LEACH-Coverage-U algorithm, simulation results show that, the method proposed in the paper can reduce energy consumption of the network effectively and improve network coverage markedly.

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廉飞宇,付麦霞.粮堆中无线传感器网络覆盖保持路由算法的改进与性能比较[J].粮油食品科技,2017,25(3):96-101.

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  • 在线发布日期: 2017-05-24
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