Title :
Modified adaptive multiuser detector for DS-CDMA multipath fading
Author :
Dutta, Amit K. ; Kiaei, Sayfe
Author_Institution :
Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR, USA
Abstract :
Fading is a critical issue for the next generation of digital cellular system using DS-CDMA. The problem of reducing bit error rate (BER) in presence of multipath fading is addressed. A new method is proposed based on adaptive near-far resistant demodulation techniques. It can be modified to eliminate the detrimental effect of fading in the presence of power control. In addition this method will drastically reduce hardware complexity and increase cell capacity for a digital cellular system
Keywords :
Rayleigh channels; adaptive signal detection; cellular radio; channel capacity; code division multiple access; coding errors; demodulation; digital radio; error statistics; fading; multipath channels; power control; pseudonoise codes; spread spectrum communication; telecommunication control; BER; DS-CDMA multipath fading; Rayleigh faded envelope; adaptive equalization; adaptive near-far resistant demodulation; bit error rate; cell capacity; digital cellular system; hardware complexity reduction; modified adaptive multiuser detector; power control; Bit error rate; Decorrelation; Demodulation; Detectors; Fading; Hardware; Interference; Multiaccess communication; Power control; Programmable control;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1997. ICASSP-97., 1997 IEEE International Conference on
Conference_Location :
Munich
Print_ISBN :
0-8186-7919-0
DOI :
10.1109/ICASSP.1997.604845
