ACK with Interference Detection Technique for ZigBee Network under Wi-Fi Interference

2013 Eighth International Conference on Broadband and Wireless Computing, Communication and Applications Pub Date : 2013-10-28 DOI:10.1109/BWCCA.2013.29

Zhipeng Wang, Tianyu Du, Yong Tang, D. Makrakis, H. Mouftah

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引用次数: 11

Abstract

Recent studies have shown that the low-power ZigBee based wireless sensor networks (WSN) are vulnerable to the interference of Wi-Fi wireless local area networks (WLAN). From our experimental studies on this coexistence issue, it is found that there are a large number of acknowledgement (ACK) packet losses in the ZigBee packet transmission process, which, in turn, generates large number of unnecessary packet retransmissions, wasting precious channel bandwidth and energy. To address this issue, in this paper, a novel technique named ACK with Interference Detection (ACK-ID) that can effectively reduce the ACK losses and consequently reduce ZigBee packet retransmissions is proposed and implemented in the Crossbow MICAz motes of our testbed. The experimental performance evaluation results show that the proposed ACK-ID can significantly improve the performance of ZigBee packet transmission in terms of ACK delivery rate and packet retransmission rate while operating under interference from the collocated WLAN.

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Wi-Fi干扰下ZigBee网络ACK干扰检测技术

近年来的研究表明，基于ZigBee的低功耗无线传感器网络(WSN)容易受到Wi-Fi无线局域网的干扰。从我们对这一共存问题的实验研究中发现，ZigBee报文传输过程中存在大量的确认(ACK)报文丢失，这反过来又产生了大量不必要的报文重传，浪费了宝贵的信道带宽和能量。为了解决这一问题，本文提出了一种新的ACK与干扰检测(ACK- id)技术，该技术可以有效地减少ACK损失，从而减少ZigBee数据包的重传。实验性能评估结果表明，所提出的ACK- id可以显著提高ZigBee分组传输的ACK发送率和分组重传率，同时可以在并置WLAN干扰下工作。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2013 Eighth International Conference on Broadband and Wireless Computing, Communication and Applications

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