An Experimental Study for Inter-User Interference Mitigation in Wireless Body Sensor Networks
An Experimental Study for Inter-User Interference Mitigation in Wireless Body Sensor Networks
复制标题
无线人体传感器网络中用户间干扰抑制的实验研究
DOI：
10.1109/jsen.2013.2267053
复制
发表时间：
2013-06
影响因子：
4.3
通讯作者：
Li, Yun
中科院分区：
文献类型：
--
作者：
Cao, Bin;Ge, Yu;Kim, Chee Wee;Feng, Gang;Tan, Hwee Pink;Li, Yun
在密集部署的无线身体传感器网络（WBSN）中，当多个佩戴WBSN的用户彼此非常接近时，用户间干扰会降低数据传输的可靠性。在现实的WBSN系统中，这种干扰的影响是显着的，但没有得到很好的探讨。为此，我们调查和分析的影响，用户间的干扰对分组交付率（PDR）和吞吐量。我们进行了广泛的实验TelosB WBSN平台的基础上，考虑非时隙载波侦听多址接入（CSMA）与冲突避免（CA）和时隙CSMA/CA模式在IEEE 802.15.4 MAC，分别。为了减轻用户间干扰，我们提出了一个轻量级的跳频方法的基础上，实际WBSN系统，并在现实环境中的性能进行了研究。我们的实验结果表明，非时隙CSMA/CA是有效的，只有在轻的用户间干扰的情况下。相比之下，当WBSN部署中出现严重的用户间干扰时，时隙CSMA/CA可以提供显着的性能改善（平均PDR高2.7倍，吞吐量高1.7倍）。此外，实验结果验证了本文提出的基于时隙CSMA/CA模式的低复杂度跳频干扰抑制方法的有效性和正确性。
Inter-user interference degrades the reliability of data delivery in wireless body sensor networks (WBSNs) in dense deployments when multiple users wearing WBSNs are in close proximity to one another. The impact of such interference in realistic WBSN systems is significant but is not well explored. To this end, we investigate and analyze the impact of inter-user interference on packet delivery ratio (PDR) and throughput. We conduct extensive experiments based on the TelosB WBSN platform, considering unslotted carrier sense multiple access (CSMA) with collision avoidance (CA) and slotted CSMA/CA modes in IEEE 802.15.4 MAC, respectively. In order to mitigate interuser interference, we propose a light-weight hopping approach based on practical WBSN systems and investigate the performance in a realistic environment. Our experimental results show that the unslotted CSMA/CA is only effective in light inter-user interference scenarios. Comparably, the slotted CSMA/CA can provide dramatic performance improvement (2.7 times higher in PDR and 1.7 times higher in throughput on average), when severe inter-user interference occurs in WBSN deployment. In addition, the experimental results validate the effectiveness and correctness of our idea of a hopping approach for inter-user interference mitigation, which is based on slotted CSMA/CA mode and with low complexity.
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DOI：
10.1109/pimrc.2011.6139905
发表时间：
2011-09
期刊：
2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications
影响因子：
--
作者：
Wen-Bin Yang;K. Sayrafian-Pour
通讯作者：
Wen-Bin Yang;K. Sayrafian-Pour
DOI：
--
发表时间：
2002
期刊：
--
影响因子：
--
作者：
Deepak Ganesan;D. Estrin;A. Woo;D. Culler;B. Krishnamachari;S. Wicker
通讯作者：
Deepak Ganesan;D. Estrin;A. Woo;D. Culler;B. Krishnamachari;S. Wicker
影响因子：
2.2
作者：
Hanson, Mark A.;Powell, Harry C., Jr.;Lach, John
通讯作者：
Lach, John
DOI：
10.1109/infcom.2005.1498537
发表时间：
2005-03
期刊：
Proceedings IEEE 24th Annual Joint Conference of the IEEE Computer and Communications Societies.
影响因子：
--
作者：
Xue Yang;N. Vaidya
通讯作者：
Xue Yang;N. Vaidya
DOI：
10.1145/1614320.1614347
发表时间：
2009-09
期刊：
--
影响因子：
--
作者：
A. Natarajan;B. D. Silva;Kok-Kiong Yap;M. Motani
通讯作者：
A. Natarajan;B. D. Silva;Kok-Kiong Yap;M. Motani