Title :
Performance analysis of space-time codes in the presence of spatio-temporal correlation
Author :
Fozunbal, Majid ; McLaughlin, Steven W. ; Schafer, Ronald W.
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
We study the impact of spatio-temporal correlation on the performance of space-time codes. We present an upper bound on pairwise word error probability of space-time codes over flat-fading Rician channels. The bound, which has a closed form expression, can be used as the basis for a unified approach to analyze and design space-time codes over any flat, Rician or Rayleigh, block-fading channel. We also present an upper and a lower bound for the diversity of the code in the presence of channel correlation. Moreover, we address the effect of spatio-temporal correlation on the mean value and variance of the instantaneous channel capacity and describe its impact on the outage probability.
Keywords :
Rayleigh channels; Rician channels; channel capacity; correlation methods; error statistics; space-time codes; Rayleigh block-fading channel; channel correlation; code diversity; flat-fading Rician channel; instantaneous channel capacity; outage probability; pairwise word error probability; space-time code; spatiotemporal correlation; Channel capacity; Covariance matrix; Degradation; Error probability; Performance analysis; Rayleigh scattering; Rician channels; Robustness; Space time codes; Upper bound;
Conference_Titel :
Vehicular Technology Conference, 2003. VTC 2003-Fall. 2003 IEEE 58th
Print_ISBN :
0-7803-7954-3
DOI :
10.1109/VETECF.2003.1285320
