Title :
Performance analysis of transmit beamforming and relay selection with feedback delay and channel estimation errors
Author :
Lei Wang ; Yueming Cai ; Weiwei Yang ; Wendong Yang
Author_Institution :
Inst. of Commun. Eng., PLA Univ. of Sci. & Technol., Nanjing, China
Abstract :
In this paper, a general framework of evaluating the joint effects of feedback delay and channel estimation errors (CEE) is formulated for two-hop amplify-and-forward (AF) relaying systems with transmit beamforming (TB) and relay selection. We derived closed-form expressions for important performance measures including the ergodic capacity, exact analysis and lower bounds of outage probability as well as average symbol error rate (SER) performance. Numerical results verify the theoretical analysis and illustrate the decremental effects of feedback delay and CEE on the system performance.
Keywords :
amplify and forward communication; array signal processing; channel estimation; error statistics; feedback; relay networks (telecommunication); CEE; SER; channel estimation errors; ergodic capacity; feedback delay; outage probability; performance analysis; relay selection; symbol error rate; transmit beamforming; two-hop amplify-and-forward relaying systems; channel estimation errors (CEE); feedback delay; relay selection; transmit beamforming(TB);
Conference_Titel :
Wireless Communications & Signal Processing (WCSP), 2013 International Conference on
Conference_Location :
Hangzhou
DOI :
10.1109/WCSP.2013.6677031
