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

Author

Pang, Kun ; Lin, Zihuai ; Oa-Filho, Bartolomeu F Uch ; Vucetic, Branka

Author_Institution

Sch. of Electr. & Inf. Eng., Univ. of Sydney, Sydney, NSW, Australia

Volume

1

Issue

6

fYear

2012

fDate

12/1/2012 12:00:00 AM

Firstpage

561

Lastpage

564

Abstract

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.

Keywords

network coding; transform coding; wireless sensor networks; Luby-transform codes; analytical symbol error rate; digital fountain rateless LT codes; distributed network coding; graph-based code; linear combinations; network-coded symbols; relay nodes; single destination node; source nodes; two-hop fashion; wireless sensor networks; Encoding; Fading; Network coding; Relays; Upper bound; Wireless sensor networks; Wireless sensor networks; distributed network coding; network coded cooperation; network-on-graph; rateless codes;

fLanguage

English

Journal_Title

Wireless Communications Letters, IEEE

Publisher

ieee

ISSN

2162-2337

Type

jour

DOI

10.1109/WCL.2012.080112.120465

Filename

6261334