Title :
Time-window control loop (TWCL) for post-detection RAKE receiver in DS/CDMA radios
Author :
Suzuki, Yasuo ; Kudoh, Eisuke
Author_Institution :
NTT Radio Commun. Syst. Labs., Kanagawa, Japan
Abstract :
This paper presents a code synchronization scheme, the time-window control loop (TWCL), for post-detection RAKE receiver systems using differential phase shift keying (DPSK), which achieves the path-diversity effect with simple device structures. The performance, holding time and acquisition time, under single-path and double-path Rayleigh-fading, always a problem in personal radios, are investigated by computer simulation. It is found that its performance under double-path Rayleigh-fading is superior to that under single-path Rayleigh-fading because of the path-diversity effect
Keywords :
Rayleigh channels; channel coding; code division multiple access; differential phase shift keying; diversity reception; encoding; fading; land mobile radio; radio receivers; signal detection; spread spectrum communication; synchronisation; telecommunication control; DS/CDMA radios; acquisition time; code synchronization scheme; computer simulation; differential phase shift keying; double-path Rayleigh-fading; holding time; path-diversity effect; performance; personal radios; post-detection RAKE receiver; simple device structures; single-path Rayleigh-fading; time-window control loop; Communication system control; Differential quadrature phase shift keying; Diversity reception; Envelope detectors; Fading; Matched filters; Multiaccess communication; Multipath channels; Radio control; Signal detection;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1994. Wireless Networks - Catching the Mobile Future., 5th IEEE International Symposium on
Conference_Location :
The Hague
Print_ISBN :
90-5199-193-2
DOI :
10.1109/WNCMF.1994.529130
