Title :
Bit error probability for space-time block code with coherent and differential detection
Author :
Gao, Chunjun ; Haimovich, Alexander M. ; Lao, Debang
Author_Institution :
Dept. of Electr. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ, USA
Abstract :
Exact, closed-form expressions of bit error probability (BEP) are derived for space-time block codes (STBC) based on Alamouti´s (1998) scheme and utilizing M-ary phase shift keying (MPSK) modulation. The analysis is carried out for the slow, flat fading Rayleigh channel with coherent detection and with differential encoding/decoding. With these closed-form expressions, we prove that a signal to noise ratio (SNR) loss of approximately 3 dB is paid for deferential detection compared to coherent detection. Numerical results are provided for analysis and simulations for BPSK and QPSK modulations.
Keywords :
Rayleigh channels; block codes; decoding; differential detection; error statistics; quadrature phase shift keying; space-time codes; BPSK; M-ary phase shift keying; MIMO channels; MPSK; QPSK; SNR loss; bit error probability; coherent detection; differential detection; differential encoding/decoding; exact closed-form expressions; flat fading Rayleigh channel; signal to noise ratio; slow fading channel; space-time block code; Analytical models; Block codes; Closed-form solution; Decoding; Error probability; Modulation coding; Phase modulation; Phase shift keying; Rayleigh channels; Signal to noise ratio;
Conference_Titel :
Vehicular Technology Conference, 2002. Proceedings. VTC 2002-Fall. 2002 IEEE 56th
Print_ISBN :
0-7803-7467-3
DOI :
10.1109/VETECF.2002.1040375
