Title :
Multiuser detection for downlink CDMA communications in multipath fading channels
Author :
Wichman, Risto ; Hottinen, Ari
Author_Institution :
NOKIA Res. Center, Finland
Abstract :
We discuss and model the interference in downlink CDMA channels and consider the advantages of applying multiuser detection techniques in the mobile stations. We show that if the increased computational complexity is tolerable such advanced receiver techniques are likely to increase the capacity of the downlink channels considerably, especially when applied together with more accurate closed loop power control. Simulation results are presented assuming that orthogonal codes are used in each base station
Keywords :
cellular radio; channel capacity; code division multiple access; codes; computational complexity; fading; interference suppression; land mobile radio; multipath channels; power control; radio links; radio receivers; radiofrequency interference; signal detection; telecommunication control; cellular radio; channel capacity; closed loop power control; computational complexity; downlink CDMA communications; interference; mobile stations; multipath fading channels; multiuser detection; orthogonal codes; receiver techniques; simulation results; Amplitude estimation; Base stations; Detectors; Downlink; Fading; Interference; Multiaccess communication; Multiuser detection; Power control; Proposals;
Conference_Titel :
Vehicular Technology Conference, 1997, IEEE 47th
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-3659-3
DOI :
10.1109/VETEC.1997.600393
