Performance Analysis of an Experimental Wireless Relay Sensor Network

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Executive Summary

Communication through relay channels in wireless sensor networks can create diversity and consequently improve robustness of data transmission for ubiquitous computing and networking applications. In this paper, the authors investigate the performances of relay channels in terms of diversity gain and throughput via both experimental research and theoretical analysis. Two relaying algorithms, dynamic relaying and fixed relaying, are utilized and tested to find out what the relay channels can contribute to system performances. The tests are based on a wireless relay sensor network comprising a source node, a destination node and dedicated relay nodes, and carried out in an indoor environment with rare movement of objects nearby.

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