A Practical Joint Network-Compressed Coding Scheme for Energy-Efficient Data Gathering in Cooperative Wireless Sensor Networks

摘要

Energy efficiency and reliability are a pair of the most important factors in wireless sensor networks (WSNs). Recent research results have demonstrated that the previously suggested scheme of the joint network-coding-compressive-sensing can greatly improve the energy efficiency and the communication reliability of WSNs. In this paper, we propose a practical scheme, Non-Binary Joint Network-Coding Compressed-Sensing(NB-JNCCS), for energy-efficient multi-hop communication in cooperative WSNs. Specially, NB-JNCCS combines non-binary compressive sensing and random linear network coding through iterative joint decoding, which helps to fully exploit the compressibility and redundancy residing in both compressed sensing and network codes, respectively. Through both simulation and analysis, we demonstrate the proposed NB-JNCCS outperforms other compared schemes.