Title :
Signal detection for orthogonal space-time block coding over time-selective fading channels: a PIC approach for the Gi systems
Author :
Zheng, Fu-Chun ; Burr, Alister G.
Author_Institution :
Dept. of Electron., Univ. of York, UK
fDate :
6/1/2005 12:00:00 AM
Abstract :
One major assumption in all orthogonal space-time block coding (O-STBC) schemes is that the channel remains static over the entire length of the codeword. However, time selective fading channels do exist, and in such case the conventional O-STBC detectors can suffer from a large error floor in the high signal-to-noise ratio (SNR) cases. This paper addresses such an issue by introducing a parallel interference cancellation (PIC) based detector for the Gi coded systems (i=3 and 4).
Keywords :
block codes; channel coding; fading channels; interference suppression; signal detection; space-time codes; Gi system; PIC approach; orthogonal space-time block coding; parallel interference cancellation; signal detection; signal-to-noise ratio; time-selective fading channel; wireless communication; AWGN; Bit error rate; Block codes; Detectors; Fading; Interference cancellation; Maximum likelihood decoding; Maximum likelihood detection; Signal detection; Wireless communication; Orthogonal space-time block coding (O-STBC); parallel interference cancellation (PIC); time selective fading channels; wireless communications;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2005.849990
