Title :
An improved decision-feedback receiver for CDMA IS-95 reverse link
Author :
Li, Bin ; Tong, Wen ; Xiao, Chengshan
Author_Institution :
Wireless Technol. Labs., Nortel Networks, Nepean, Ont., Canada
Abstract :
In this paper, an improved decision feedback receiver is presented for the CDMA IS-95 reverse link. Two techniques are proposed to improve the receiver performance: (1) noncoherent block detection that uses multiple Walsh codes for joint detection, and (2) iterative decision feedback detection. Comparing with a conventional “decision feedback receiver”, a significant performance improvement is observed via the computer simulations for both AWGN and Rayleigh flat fading channels
Keywords :
AWGN channels; Rayleigh channels; Walsh functions; code division multiple access; codes; iterative methods; land mobile radio; radio receivers; signal detection; AWGN channels; CDMA IS-95 reverse link; Rayleigh flat fading channels; decision-feedback receiver; iterative decision feedback detection; joint detection; multiple Walsh codes; noncoherent block detection; receiver performance; Computer simulation; Convolution; Convolutional codes; Decoding; Detectors; Fading; Multiaccess communication; Output feedback; Signal detection; Viterbi algorithm;
Conference_Titel :
Vehicular Technology Conference, 2000. IEEE-VTS Fall VTC 2000. 52nd
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-6507-0
DOI :
10.1109/VETECF.2000.886691
