Decode-and-Forward Two-Way Relaying with Network Coding and Opportunistic Relay Selection

Author

Zhou, Qing F. ; Li, Yonghui ; Lau, Francis C M ; Vucetic, Branka

Author_Institution

Dept. of Electron. & Inf. Eng., Hong Kong Polytech. Univ., Kowloon, China

Volume

58

Issue

11

fYear

2010

fDate

11/1/2010 12:00:00 AM

Firstpage

3070

Lastpage

3076

Abstract

In this paper, we study a decode-and-forward two-way relaying network. We propose an opportunistic two-way relaying (O-TR) scheme based on joint network coding and opportunistic relaying. In the proposed scheme, one single "best relay" is selected by MaxMin criterion to perform network coding on two decoded symbols sent from two sources, and then to broadcast the network-coded symbols back to the two sources. The performance of the proposed scheme is analyzed, and verified through Monte Carlo simulations. Results show that the proposed scheme achieves a better performance compared to the fully-distributed space-time two-way relaying (FDST-TR), which has been identified as the best decode-and-forward two-way relaying method so far.

Keywords

Monte Carlo methods; minimax techniques; network coding; FDST-TR; MaxMin criterion; Monte Carlo simulations; decode-and-forward two-way relaying network; decoded symbols; fully-distributed space-time two-way relaying; joint network coding; network-coded symbols; opportunistic relay selection; opportunistic relaying; opportunistic two-way relaying scheme; Binary phase shift keying; Decoding; Encoding; Fading; Network coding; Protocols; Relays; Cooperative communications; decode and forward; network coding; relay selection; two-way relay;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOMM.2010.100510.090258

Filename

5601657