Performance of physical-layer network coding in asymmetric two-way relay channels

Author

Li Bo ; Wang Gang ; Chong, Peter Han Joo ; Yang Hongjuan ; Yongliang Guan ; Sha Xuejun

Author_Institution

Commun. Res. Center, Harbin Inst. of Technol., Harbin, China

Volume

10

Issue

10

fYear

2013

fDate

Oct. 2013

Firstpage

65

Lastpage

73

Abstract

In this paper, we study the performance of physical-layer network coding in asymmetric two-way relay channels using four different cases having different poor channels: phase asymmetry, downlink asymmetry, uplink asymmetry and node asymmetry. The decision and mapping rule for symmetric and asymmetric cases are studied. The performance in terms of bit error rate for each case will be studied and analysed by computer simulation. Analytical and simulation results show that uplink asymmetry is the worst case; intra-phase asymmetry and unreliable uplink channels will more severely affect the performance degradation, which is caused by channel asymmetry.

Keywords

error statistics; network coding; relay networks (telecommunication); asymmetric two-way relay channels; bit error rate; downlink asymmetry; intra-phase asymmetry; node asymmetry; physical-layer network coding; unreliable uplink channels; uplink asymmetry; Binary phase shift keying; Bit error rate; Downlink; Network coding; Relays; Uplink; Wireless communication; asymmetric channels; bit error rate; physical-layer network coding; two-way relay channels;

fLanguage

English

Journal_Title

Communications, China

Publisher

ieee

ISSN

1673-5447

Type

jour

DOI

10.1109/CC.2013.6650320

Filename

6650320