Title :
Adaptive multishot canceler for wideband CDMA systems
Author :
Tang, Xin ; Bar-Ness, Y. ; Van Waes, N.J.M.
Author_Institution :
Dept. of Electr. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ, USA
Abstract :
With the demand for high capacity (multimedia) services, wideband CDMA (WCDMA) has become an attractive multiple access scheme for 3rd generation wireless systems. Coming with higher data rate, the application of WCDMA brings with it new challenges in terms of multiple access interference (MAI) and intersymbol interference (ISI) suppression due to the fact that compared to the “regular” CDMA, the delay spread is no longer only a few chips. Most of the literature on multiuser detection so far focused on algorithms which, due to high computational/hardware complexity, are unsuitable for large delay spread channels. We present an adaptive symbol-based signal separator based on multishot matched filtering which is suitable for the asynchronous large delay spread fading channels characteristics
Keywords :
adaptive signal detection; adaptive signal processing; broadband networks; code division multiple access; delays; filtering theory; interference suppression; intersymbol interference; land mobile radio; matched filters; multimedia communication; multipath channels; multiuser channels; radio receivers; 3rd generation wireless systems; ISI; WCDMA; adaptive Bootstrap receiver; adaptive channel gain estimation; adaptive detection; adaptive multishot canceler; adaptive symbol-based signal separator; asynchronous large delay spread fading channels; delay spread; high capacity services; interference suppression; intersymbol interference; multimedia services; multipath environment; multiple access interference; multishot matched filtering; multiuser detection; wideband CDMA systems; Adaptive filters; Delay; Hardware; Intersymbol interference; Multiaccess communication; Multimedia systems; Multiple access interference; Multiuser detection; Particle separators; Wideband;
Conference_Titel :
Vehicular Technology Conference, 1999. VTC 1999 - Fall. IEEE VTS 50th
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-5435-4
DOI :
10.1109/VETECF.1999.797116
