Title :
The impact of channel estimation error on space-time block codes
Author :
Buehrer, R. Michael ; Kumar, Nishant A.
Author_Institution :
Mobile & Portable Radio Res. Group, Virginia Tech, Blacksburg, VA, USA
Abstract :
We examine the impact of channel estimation error on the performance of 2 and 4 antenna space-time block codes. This is examined specifically in the context of space-time spreading as defined for the cdma2000 standard. The performance is determined by finding an expression for the probability of bit error when using BPSK or QPSK modulation and modeling the channel estimation error as a Gaussian random variable.
Keywords :
3G mobile communication; Gaussian processes; block codes; cellular radio; channel estimation; diversity reception; error statistics; multiuser channels; quadrature phase shift keying; random processes; space-time codes; telecommunication channels; transmitting antennas; BPSK; CDMA system; Gaussian random variable; QPSK; bit error probability; cdma2000 standard; channel estimation error; downlink transmission; four-antenna space-time block codes; space-time spreading; third generation CDMA cellular systems; transmit diversity; two-antenna space-time block codes; Binary phase shift keying; Block codes; Channel estimation; Downlink; Mobile antennas; Multiaccess communication; Quadrature phase shift keying; Random variables; Sociotechnical systems; Transmitting antennas;
Conference_Titel :
Vehicular Technology Conference, 2002. Proceedings. VTC 2002-Fall. 2002 IEEE 56th
Print_ISBN :
0-7803-7467-3
DOI :
10.1109/VETECF.2002.1040551
