Low-Energy Adaptive Cooperative Diversity Applied to Wireless Sensor Networks

Marcelo P. Sousa, Ajey Kumar, Marcelo S. Alencar, Waslon T. A. Lopes

DOI: 10.14209/sbrt.2009.58029

Evento: XXVII Simpósio Brasileiro de Telecomunicações (SBrT2009)

Keywords: WSN cooperative diversity truncated ARQ crosslayer design SCA LEACH SCA with LEACH

Abstract

The performance of wireless sensor networks (WSNs) can be significantly improved using adaptive cooperative diversity (SCA) technique, which is basically a cross-layer design that combines truncated ARQ at the link layer and cooperative diversity at the physical layer. LEACH is a protocol for wireless sensor networks that utilizes randomized rotation of local clusterheads to evenly distribute the energy load among the sensors in the network. This paper proposes a combination of the adaptive cooperative diversity and LEACH techniques for wireless sensor networks. Simulation results show that the proposed scheme (SCA with LEACH) has satisfatory lifetime and packet loss rate performances.

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