能量捕獲無線傳感網(wǎng)的信道質(zhì)量和能量感知高傳遞率多播方案
發(fā)布時間:2018-08-14 15:42
【摘要】:能量捕獲無線傳感器網(wǎng)絡(luò)(EH-WSNs)由于可以無限期持續(xù)工作而具有非常廣泛的應用前景。目前已有的EH-WSNs單跳多播方案存在以下問題:沒考慮到鏈路質(zhì)量會動態(tài)變化、節(jié)點儲能易發(fā)生溢出而浪費能量等。提出了一種高傳遞率、高能效的EH-WSNs單跳多播方案。該方案采用糾刪碼,綜合考慮節(jié)點當前儲能、能量捕獲速率以及當前信道質(zhì)量等3方面因素,分析出當前待接收數(shù)據(jù)塊的正確接收數(shù)據(jù)包數(shù)目期望值,只有當該期望值大于等于一定值時或者如果不接收該數(shù)據(jù)塊則將發(fā)生儲能溢出時才接收該數(shù)據(jù)塊,有效地降低了信道質(zhì)量差造成數(shù)據(jù)塊接收失敗和節(jié)點儲能溢出的發(fā)生頻率,高效利用極其有限的捕獲能量。仿真結(jié)果表明,相比已有方案,本方案能顯著提高EHWSNs單跳多播的數(shù)據(jù)包成功傳遞率。
[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.
【作者單位】: 浙江工業(yè)大學計算機科學與技術(shù)學院;浙江省可視媒體智能處理技術(shù)研究重點實驗室;
【基金】:國家自然科學基金(61472367,61202204) 浙江省自然科學基金(LY15F020029,LY15F020027)資助
【分類號】:TP212.9;TN929.5
本文編號: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.
【作者單位】: 浙江工業(yè)大學計算機科學與技術(shù)學院;浙江省可視媒體智能處理技術(shù)研究重點實驗室;
【基金】:國家自然科學基金(61472367,61202204) 浙江省自然科學基金(LY15F020029,LY15F020027)資助
【分類號】:TP212.9;TN929.5
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