Energy-efficient off-body communication nodes with receive diversity

2013 IEEE 20th Symposium on Communications and Vehicular Technology in the Benelux (SCVT) Pub Date : 2013-11-01 DOI:10.1109/SCVT.2013.6735992

P. V. Torre, P. Vanveerdeghem, H. Rogier, I. Moerman

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引用次数: 4

Abstract

Off-body wireless communication applications range from fall-detection systems for the elderly to monitoring networks for rescue workers. Further development of practical body-worn systems requires compact, low-cost and low-power battery-powered equipment. A versatile wearable network node offering all these features, including a powerful microcontroller for data processing and additional memory for local data logging was designed and implemented. The node allows receive diversity, mitigating the negative impact of fading, which is typically present in indoor propagation environments. Channel measurements are performed for an indoor Non Line-of-Sight communication between two nodes. Mobile-to-base-station as well as mobile-to-mobile links are considered. A statistical analysis of the performance determines outage probability with and without receiver diversity for both link types, showing a significant diversity gain in all cases. Correlation properties, level crossing rate and average fade duration are also determined.

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具有接收分集的节能离体通信节点

离体无线通信的应用范围从老年人的跌倒检测系统到救援人员的监控网络。实用的穿戴式系统的进一步发展需要紧凑、低成本和低功耗的电池供电设备。设计并实现了一个多功能可穿戴网络节点，提供所有这些功能，包括用于数据处理的强大微控制器和用于本地数据记录的额外内存。该节点允许接收分集，减轻衰落的负面影响，这通常存在于室内传播环境中。对两个节点之间的室内非视距通信进行信道测量。考虑了移动到基站以及移动到移动链路。性能的统计分析确定了两种链路类型有和没有接收器分集的中断概率，在所有情况下都显示出显著的分集增益。还确定了相关特性、平交率和平均衰落持续时间。

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2013 IEEE 20th Symposium on Communications and Vehicular Technology in the Benelux (SCVT)

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