Distributed Network Coding for Wireless Sensor Networks Based on Rateless LT Codes

作者：Pang Kun^*; Lin Zihuai; Uchoa Filho Bartolomeu F; Vucetic Branka

来源：IEEE Wireless Communications Letters, 2012, 1(6): 561-564.

DOI：10.1109/WCL.2012.080112.120465

• Wireless sensor networks
• distributed network coding
• network coded cooperation
• network-on-graph
• rateless codes

In this paper, we propose a distributed network coding (DNC) scheme based on digital fountain rateless LT codes for wireless sensor networks (WSNs), where a group of source nodes communicate with a single destination node through a group of relay nodes in a two-hop fashion. The aim of the proposed scheme is to achieve network coding gains. The relay nodes perform linear combinations by using network coding to form network-coded symbols and send them to the destination node. At the destination, a graph-based, rateless code is formed on the fly. The main contribution of this paper is the derivation of an analytical symbol error rate (SER) bound for the proposed coding scheme.

• 出版日期2012-12