Title :
An optimal receiver for CDMA forward link without pilot tone
Author :
Castoldi, Piero ; Kobayashi, Hisashi
Author_Institution :
Dept. of Electr. Eng., Princeton Univ., NJ, USA
Abstract :
We derive an optimal receiver for the forward link of a CDMA mobile radio system subject to slowly varying Rayleigh fading. The proposed optimal detector does not require the transmission of a pilot tone and exploits fading memory and Kalman filtering for channel estimation. The receiver exhibits a good performance especially for low signal-to-noise ratio which is the typical operating conditions of CDMA systems
Keywords :
Kalman filters; Rayleigh channels; access protocols; cellular radio; code division multiple access; digital radio; estimation theory; fading; filtering theory; land mobile radio; maximum likelihood detection; pseudonoise codes; radio links; radio receivers; spread spectrum communication; CDMA forward link; IS-95; Kalman filtering; MLSE; North American digital cellular standard; SNR; channel estimation; direct sequence spread spectrum; fading memory; low signal-to-noise ratio; maximum likelihood sequence estimation; mobile radio system; optimal detector; optimal receiver; performance; slowly varying Rayleigh fading; AWGN; Base stations; Baseband; Fading; Frequency; Kalman filters; Multiaccess communication; Quadrature amplitude modulation; Rayleigh channels; Receivers;
Conference_Titel :
Communications, Computers and Signal Processing, 1997. 10 Years PACRIM 1987-1997 - Networking the Pacific Rim. 1997 IEEE Pacific Rim Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-3905-3
DOI :
10.1109/PACRIM.1997.620309
