Data Gathering with Distributed Network Coding over Wireless Sensor Network
Taiqi Huang, Yi Liang, Benshun Yi · 2016
In this paper, a distributed network coding (DNC) scheme based on improved online fountain codes is proposed for wireless sensor networks (WSNs). Specifically we propose an improved online fountain codes with the objection of optimizing the build-up phase of the conventional online fountain codes. Then based upon this method, we develop a distributed network coding scheme for sensed data gathering over wireless sensor networks. We analyze the properties of the proposed DNC scheme and derive the upper coding overhead bound for it over binary erasure channels under belief propagation (BP) decoding. Simulation results show that the proposed DNC scheme can achieve a better performance with respect to both coding overhead and complexities.