Title :
Multiuser detection for integrated multi-rate CDMA
Author_Institution :
Dept. of Electr. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ, USA
Abstract :
We extend the LMMSE multiuser detector to multi-rate CDMA systems, where different users have different quality-of-service (QoS) requirements. The proposed LMMSE detectors can work on dual-rate mode according to different computational constraints. Only the signature of the desired user is needed in using the proposed multi-rate LMMSE detectors. The proposed detectors have better detection performance and less computational requirement than the dual-rate decorrelating detectors. Computer simulations verified analytical results and conjecture
Keywords :
code division multiple access; least mean squares methods; radio receivers; signal detection; LMMSE multiuser detector; computational constraints; detection performance; dual-rate mode; integrated multi-rate CDMA; multiuser detection; quality-of-service; signature; Bit error rate; Decorrelation; Detectors; Interference constraints; Intserv networks; Multiaccess communication; Multiple access interference; Multiuser detection; Quality of service; Signal processing;
Conference_Titel :
Information, Communications and Signal Processing, 1997. ICICS., Proceedings of 1997 International Conference on
Print_ISBN :
0-7803-3676-3
DOI :
10.1109/ICICS.1997.652101
