TY - GEN
T1 - Pilot power optimization for AF relaying using maximum likelihood channel estimation
AU - Wang, Kezhi
AU - Chen, Yunfei
AU - Alouini, Mohamed-Slim
AU - Xu, Feng
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2014/9
Y1 - 2014/9
N2 - Bit error rates (BERs) for amplify-and-forward (AF) relaying systems with two different pilot-symbol-aided channel estimation methods, disintegrated channel estimation (DCE) and cascaded channel estimation (CCE), are derived in Rayleigh fading channels. Based on these BERs, the pilot powers at the source and at the relay are optimized when their total transmitting powers are fixed. Numerical results show that the optimized system has a better performance than other conventional nonoptimized allocation systems. They also show that the optimal pilot power in variable gain is nearly the same as that in fixed gain for similar system settings. andcopy; 2014 IEEE.
AB - Bit error rates (BERs) for amplify-and-forward (AF) relaying systems with two different pilot-symbol-aided channel estimation methods, disintegrated channel estimation (DCE) and cascaded channel estimation (CCE), are derived in Rayleigh fading channels. Based on these BERs, the pilot powers at the source and at the relay are optimized when their total transmitting powers are fixed. Numerical results show that the optimized system has a better performance than other conventional nonoptimized allocation systems. They also show that the optimal pilot power in variable gain is nearly the same as that in fixed gain for similar system settings. andcopy; 2014 IEEE.
UR - http://hdl.handle.net/10754/564992
UR - http://ieeexplore.ieee.org/document/6966131/
UR - http://www.scopus.com/inward/record.url?scp=84919458814&partnerID=8YFLogxK
U2 - 10.1109/VTCFall.2014.6966131
DO - 10.1109/VTCFall.2014.6966131
M3 - Conference contribution
SN - 9781479944491; 9781479944491
BT - 2014 IEEE 80th Vehicular Technology Conference (VTC2014-Fall)
PB - Institute of Electrical and Electronics Engineers (IEEE)
ER -