Title :
Multiuser detectors for fast-fading multipath channels
Author :
Sayeed, Akbar M. ; Sendonaris, Andrew ; Aazhang, Behnaam
Author_Institution :
Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA
Abstract :
We propose a new framework for multiuser detection in fast fading channels that are encountered in many mobile communication scenarios. The detectors proposed in this paper employ a novel multiuser receiver structure based on time-frequency processing that exploits joint multipath-Doppler diversity. Performance analysis shows that the proposed time-frequency multiuser receivers, due to their inherently higher level of diversity, can potentially deliver substantial performance gains relative to conventional multiuser RAKE receivers.
Keywords :
Rayleigh channels; code division multiple access; diversity reception; fading; land mobile radio; radio receivers; time-frequency analysis; fast-fading multipath channels; joint multipath-Doppler diversity; mobile communication; multiuser detectors; multiuser receiver structure; performance; time-frequency multiuser receivers; time-frequency processing; Degradation; Detectors; Fading; Interference; Multiaccess communication; Multipath channels; Multiuser detection; Performance gain; Scattering; Time frequency analysis;
Conference_Titel :
Signals, Systems & Computers, 1997. Conference Record of the Thirty-First Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-8186-8316-3
DOI :
10.1109/ACSSC.1997.680448
