DocumentCode
73396
Title
Optimal time allocation for two-way relay channel using physical-layer network coding
Author
Dae-Soon Cho ; Yeonggyu Shim ; Hyuncheol Park
Author_Institution
Dept. of Inf. & Commun. Eng., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea
Volume
8
Issue
14
fYear
2014
fDate
Sept. 25 2014
Firstpage
2469
Lastpage
2475
Abstract
This study proposes an optimal time allocation scheme for two-way relay channel (TWRC) using the physical-layer network coding (PNC). In other words, this study analytically determines the optimal transmit time durations for the first and the second time slot, which maximise the achievable sum rate under a sum time constraint for a given squared magnitude of the channel coefficients and transmit power values. Numerical results show that the achievable sum rate for the proposed optimal time allocation is greater than or equal to that for equal time allocation.
Keywords
channel allocation; channel coding; network coding; relay networks (telecommunication); PNC; TWRC; channel coefficients; first time slot; optimal time allocation scheme; optimal transmit time durations; physical-layer network coding; second time slot; sum rate; sum time constraint; transmit power values; two-way relay channel;
fLanguage
English
Journal_Title
Communications, IET
Publisher
iet
ISSN
1751-8628
Type
jour
DOI
10.1049/iet-com.2014.0253
Filename
6900028
Link To Document