Title :
Power Allocation for Bidirectional AF Relaying with Direct Link over Rayleigh Fading Environment
Author :
Yan, Wei ; Cai, Yueming ; Li, Ning
Author_Institution :
Inst. of Commun. Eng., PLA Univ. of Sci. & Technol., Nanjing, China
Abstract :
This paper investigates bidirectional relaying with direct link, where two sources exchange data via a relay node using an amplify-and-forward (AF) protocol. Two power allocation strategies are proposed under Rayleigh fading channels. One scheme aims to improve average sum-rate and the other is to decrease sum-symbol error rate (SER). Numerical results have indicated significant performance gain over the equal power allocation.
Keywords :
Rayleigh channels; amplify and forward communication; protocols; AF protocol; SER; amplify-and-forward protocol; bidirectional AF relaying; direct link; power allocation; rayleigh fading environment; relay node; sum-symbol error rate; Fading; Network coding; Performance gain; Protocols; Relays; Resource management; Signal to noise ratio; amplify-and-forward; average sum-rate; power allocation; sum-SER;
Conference_Titel :
Communications and Mobile Computing (CMC), 2011 Third International Conference on
Conference_Location :
Qingdao
Print_ISBN :
978-1-61284-312-4
DOI :
10.1109/CMC.2011.90
