Title :
Simplified interference-based threshold rule for delay selection in DS-CDMA systems
Author :
Elders-Boll, Harald
Author_Institution :
Professional Service Group, Wireless & Broadband Commun., Herzogenrath, Germany
Abstract :
Reliable path selection prior to maximum-ratio combining is a crucial operation in any DS-CDMA receiver. We propose a simplified dynamic threshold rule for path delay selection. The new threshold rule is based on the statistical parameters of the interference, which can easily be estimated from the computed power delay profile. By using the new threshold rule, the performance of the RAKE receiver can be improved and/or its complexity can be reduced, considerably
Keywords :
code division multiple access; delays; land mobile radio; multiuser channels; radio receivers; radiofrequency interference; spread spectrum communication; statistical analysis; DS-CDMA receiver; DS-CDMA systems; RAKE receiver performance; WCDMA; complexity reduction; interference; interference-based threshold rule; maximum-ratio combining; path delay selection; power delay profile; radio interface; statistical parameters; third generation mobile communication systems; wideband CDMA; 3G mobile communication; Delay estimation; Europe; Fading; Fingers; Interference; Multiaccess communication; Multipath channels; Noise measurement; Power measurement;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2000. PIMRC 2000. The 11th IEEE International Symposium on
Conference_Location :
London
Print_ISBN :
0-7803-6463-5
DOI :
10.1109/PIMRC.2000.881394
