Title :
Performance comparison of multiple-symbol differential detection and optimum combining
Author :
Lao, Debang ; Haimovich, Alexander M.
Author_Institution :
Dept. of Electr. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ, USA
Abstract :
The performance of multiple symbol differential detection (MSDD) over Rayleigh diversity channels and in the presence of cochannel interference is compared with that of optimum combining (OC). For this purpose, we derive the asymptotic expressions for the approximate upper bound of the bit error probability of MSDD for multiple phase shift keying modulation. Similar asymptotic expressions are derived for OC. These relatively simple expressions provide a clear insight into the performance of MSDD and OC. Through analysis and simulation results, we show that as the observation interval increases, the performance of MSDD approaches that of OC (with differential encoding)
Keywords :
Rayleigh channels; differential detection; diversity reception; error statistics; maximum likelihood detection; phase shift keying; PSK; Rayleigh diversity channels; approximate upper bound; asymptotic expressions; bit error probability; cochannel interference; differential encoding; maximum likelihood detector; multiple phase shift keying modulation; multiple-symbol differential detection; observation interval; optimum combining; performance comparison; simulation results; AWGN; Chromium; Diversity reception; Fading; Interchannel interference; Phase detection; Phase shift keying; Transmitters; Upper bound; Wireless communication;
Conference_Titel :
Communications, 2002. ICC 2002. IEEE International Conference on
Conference_Location :
New York, NY
Print_ISBN :
0-7803-7400-2
DOI :
10.1109/ICC.2002.996856
