Relay Selection Methods for Wireless Sensor Networks: Performance-Complexity Tradeoff

Nathalia dos Santos Silva; Fernanco Ciriaco; Taufik Abrão

doi:10.14209/sbrt.2013.240

Relay Selection Methods for Wireless Sensor Networks: Performance-Complexity Tradeoff

Nathalia dos Santos Silva, Fernanco Ciriaco, Taufik Abrão

DOI: 10.14209/sbrt.2013.240

Evento: XXXI Simpósio Brasileiro de Telecomunicações (SBrT2013)

Keywords: CoopNet relay selection multiple selection multiple hop maximum ratio combining amplify-and-forward

Abstract

This paper analyzes the complexity-performance tradeoff of relay selection (RS) methods for cooperative networks (CoopNet), specially applied to wireless sensor networks (WSNs). The performance-complexity of the classical RS methods such as opportunistic (O-RS), random (R-RS), maximum harmonic mean (MHM-RS), best-worse (BW-RS), max-generalized-mean (MGM-RS) and maximum signal-noise ratio (Max-SNR) have been analyzed by simulation considering one and two hops with increasing number of available relays and set of selected relays as well. The complexity in terms of number of operations and computational time is analyzed in order to conﬁrm the feasibility of the RS methods under the perspective of digital signal processing architecture.

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