An energy-efficient single-hop wireless sensor network using Repeat-Accumulate codes

Error-control coding (ECC) is a classic approach to save transmission energy in wireless sensor networks (WSN). In this paper, we consider a single-hop wireless sensor network, where Repeat-Accumulate (RA) codes are utilized. RA codes, which are asymmetric codes with low encoding complexity and high decoding complexity, are applied to WSN for the transmission from sensors to the base station. Experiments demonstrate that our proposed scheme can bring 24.1% energy cut compared to that with convolutional codes, and can extend the feasible single-hop range to 185 m. Therefore, the performance of the proposed scheme is superior to that with convolutional codes.