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

Volume

1

fYear

2000

fDate

2000

Firstpage

439

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2000. IEEE-VTS Fall VTC 2000. 52nd

Conference_Location

Boston, MA

ISSN

1090-3038

Print_ISBN

0-7803-6507-0

Type

conf

DOI

10.1109/VETECF.2000.886691

Filename

886691