TY - JOUR
T1 - Novel receivers for AF relaying with distributed STBC using cascaded and disintegrated channel estimation
AU - Khan, Fahd Ahmed
AU - Chen, Yunfei
AU - Alouini, Mohamed-Slim
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work was supported in part by King Abdullah University of Science and Technology (KAUST), and in part by UK EPSRC First Grant EP/F030843/1.
PY - 2012/4
Y1 - 2012/4
N2 - New coherent receivers are derived for a pilot-symbol-aided distributed space-time block-coded system with imperfect channel state information which do not perform channel estimation at the destination by using the received pilot signals directly for decoding. The derived receivers are based on new metrics that use distribution of the channels and the noise to achieve improved symbol-error-rate (SER) performance. The SER performance of the derived receivers is further improved by utilizing the decision history in the receivers. The decision history is also incorporated in the existing Euclidean metric to improve its performance. Simulation results show that, for 16-quadrature-amplitude-modulation in a Rayleigh fading channel, a performance gain of up to 2.5 dB can be achieved for the new receivers compared with the conventional mismatched coherent receiver. © 2012 IEEE.
AB - New coherent receivers are derived for a pilot-symbol-aided distributed space-time block-coded system with imperfect channel state information which do not perform channel estimation at the destination by using the received pilot signals directly for decoding. The derived receivers are based on new metrics that use distribution of the channels and the noise to achieve improved symbol-error-rate (SER) performance. The SER performance of the derived receivers is further improved by utilizing the decision history in the receivers. The decision history is also incorporated in the existing Euclidean metric to improve its performance. Simulation results show that, for 16-quadrature-amplitude-modulation in a Rayleigh fading channel, a performance gain of up to 2.5 dB can be achieved for the new receivers compared with the conventional mismatched coherent receiver. © 2012 IEEE.
UR - http://hdl.handle.net/10754/562148
UR - http://ieeexplore.ieee.org/document/6153326/
UR - http://www.scopus.com/inward/record.url?scp=84862806802&partnerID=8YFLogxK
U2 - 10.1109/TWC.2012.021412.102166
DO - 10.1109/TWC.2012.021412.102166
M3 - Article
SN - 1536-1276
VL - 11
SP - 1370
EP - 1379
JO - IEEE Transactions on Wireless Communications
JF - IEEE Transactions on Wireless Communications
IS - 4
ER -