能量捕获无线传感网的信道质量和能量感知高传递率多播方案
发布时间：2018-08-14 15:42
【摘要】：能量捕获无线传感器网络(EH-WSNs)由于可以无限期持续工作而具有非常广泛的应用前景。目前已有的EH-WSNs单跳多播方案存在以下问题:没考虑到链路质量会动态变化、节点储能易发生溢出而浪费能量等。提出了一种高传递率、高能效的EH-WSNs单跳多播方案。该方案采用纠删码,综合考虑节点当前储能、能量捕获速率以及当前信道质量等3方面因素,分析出当前待接收数据块的正确接收数据包数目期望值,只有当该期望值大于等于一定值时或者如果不接收该数据块则将发生储能溢出时才接收该数据块,有效地降低了信道质量差造成数据块接收失败和节点储能溢出的发生频率,高效利用极其有限的捕获能量。仿真结果表明,相比已有方案,本方案能显著提高EHWSNs单跳多播的数据包成功传递率。
[Abstract]:Energy capture wireless sensor networks (EH-WSNs) have a wide range of applications due to their indefinite and continuous operation. The existing EH-WSNs single-hop multicast schemes have the following problems: not taking into account the dynamic change of link quality, node energy storage is prone to overflow and waste energy, and so on. A EH-WSNs single hop multicast scheme with high transfer rate and high energy efficiency is proposed. In this scheme, erasure codes are used to analyze the expected number of correct received data packets in the current data blocks, considering three factors: the current energy storage, the energy capture rate and the current channel quality. Only when the expected value is greater than a certain value or if the data block is not received will the energy storage overflow occur, which effectively reduces the frequency of the data block receiving failure and node energy overflow caused by the channel quality difference. Highly efficient use of extremely limited capture energy. Simulation results show that the proposed scheme can significantly improve the packet success rate of EHWSNs single hop multicast.
【作者单位】： 浙江工业大学计算机科学与技术学院;浙江省可视媒体智能处理技术研究重点实验室;
【基金】：国家自然科学基金(61472367,61202204) 浙江省自然科学基金(LY15F020029,LY15F020027)资助
【分类号】：TP212.9;TN929.5
本文编号：2183345
[Abstract]:Energy capture wireless sensor networks (EH-WSNs) have a wide range of applications due to their indefinite and continuous operation. The existing EH-WSNs single-hop multicast schemes have the following problems: not taking into account the dynamic change of link quality, node energy storage is prone to overflow and waste energy, and so on. A EH-WSNs single hop multicast scheme with high transfer rate and high energy efficiency is proposed. In this scheme, erasure codes are used to analyze the expected number of correct received data packets in the current data blocks, considering three factors: the current energy storage, the energy capture rate and the current channel quality. Only when the expected value is greater than a certain value or if the data block is not received will the energy storage overflow occur, which effectively reduces the frequency of the data block receiving failure and node energy overflow caused by the channel quality difference. Highly efficient use of extremely limited capture energy. Simulation results show that the proposed scheme can significantly improve the packet success rate of EHWSNs single hop multicast.
【作者单位】： 浙江工业大学计算机科学与技术学院;浙江省可视媒体智能处理技术研究重点实验室;
【基金】：国家自然科学基金(61472367,61202204) 浙江省自然科学基金(LY15F020029,LY15F020027)资助
【分类号】：TP212.9;TN929.5
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