Title :
Effect of noise-only-paths on the performance improvement of post-demodulation selection diversity in DS/SS mobile radio
Author :
Higashi, Akihiro ; Matsumoto, Tadashi ; Kavehrad, Mohsen
Author_Institution :
NTT Mobile Commun. Network Inc., Kanagawa, Japan
Abstract :
The path diversity improvement inherent within direct sequence spread spectrum (DS/SS) signalling in multipath propagation environments is investigated for mobile/personal radio communications systems that employ DPSK modulation. The bit error rate (BER) performance of post-demodulation selection diversity reception is theoretically analyzed in the presence of noise-only-paths in the time window for diversity combining. Results of laboratory experiments conducted to evaluate the BER performance are also presented. It is shown that the experiment results agree well with the theoretical BER
Keywords :
demodulation; diversity reception; error statistics; mobile radio systems; personal communication networks; phase shift keying; radiowave propagation; spread spectrum communication; BER performance; DPSK modulation; DS-SS mobile radio; bit error rate; direct sequence spread spectrum; diversity combining; diversity reception; laboratory experiments; multipath propagation environments; noise only paths; personal radio communications systems; post-demodulation selection diversity; signalling; Bit error rate; Differential quadrature phase shift keying; Diversity reception; Fading; Intelligent networks; Laboratories; Land mobile radio; Mobile communication; Spread spectrum communication; Tracking loops;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1992. Proceedings, PIMRC '92., Third IEEE International Symposium on
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-0841-7
DOI :
10.1109/PIMRC.1992.279857
