Title :
Orthogonal space-time block coding over time-selective fading channels: a PIC detector for the Gi systems
Author :
Zheng, F.-C. ; Burr, A.G.
Author_Institution :
Sch. of Electr. Eng., Victoria Univ. of Technol., Melbourne, Vic., Australia
Abstract :
All the orthogonal space-time block coding (O-STBC) schemes are based on the following assumption: the channel remains static over the entire length of the codeword. However, time selective fading channels do exist, and in many cases 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; fading channels; interference suppression; signal detection; space-time codes; time-varying channels; Gi systems PIC detector; O-STBC detectors; high signal-to-noise ratio error floor; orthogonal space-time block coding; parallel interference cancellation based detector; time-selective fading channels; AWGN; Australia; Bit error rate; Block codes; Detectors; Fading; Interference cancellation; Maximum likelihood decoding; Signal to noise ratio; Space technology;
Conference_Titel :
Vehicular Technology Conference, 2004. VTC 2004-Spring. 2004 IEEE 59th
Print_ISBN :
0-7803-8255-2
DOI :
10.1109/VETECS.2004.1387981