Simulation of uplink CDMA RAKE receiver with selective diversity and coding

Author

Guo-Qiang Xue ; Cheng, Shi-Xiri

Author_Institution

Nat. Commun. Res. Lab., Southeast Univ., Nanjing, China

fYear

1996

fDate

5-7 May 1996

Firstpage

362

Abstract

The mobile radio environment is characterized by time variant multipath propagation and fading. The RAKE receiver is the preferred choice in CDMA communication systems. The receiver structure for the IS-95 uplink communication is presented, and a new selective diversity method using decision feedback is proposed. Simulation results demonstrate that this method can effectively suppress the effect of the interference only path (IOP) and reduce the complexity of the receiver. Antenna diversity and Viterbi decoding are also discussed. It is shown that channel coding is effective provided block interleaving is employed simultaneously. The GSM typical urban 6-path channel model is used in all of the simulations. The performance of the RAKE receiver in various conditions is analyzed by means of simulations

Keywords

Viterbi decoding; cellular radio; channel coding; code division multiple access; digital simulation; diversity reception; fading; feedback; interleaved codes; land mobile radio; multipath channels; radio links; radio receivers; radiofrequency interference; simulation; time-varying channels; GSM; IS-95 uplink communication; Viterbi decoding; antenna diversity; block interleaving; channel coding; coding; decision feedback; fading; interference only path; interference suppression; mobile radio environment; receiver complexity reduction; receiver structure; selective diversity; simulation; simulation results; time variant multipath propagation; uplink CDMA RAKE receiver; urban 6-path channel model; Diversity methods; Fading; Feedback; Interference suppression; Land mobile radio; Mobile communication; Multiaccess communication; Multipath channels; RAKE receivers; Viterbi algorithm;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Technology Proceedings, 1996. ICCT'96., 1996 International Conference on

Conference_Location

Beijing

Print_ISBN

0-7803-2916-3

Type

conf

DOI

10.1109/ICCT.1996.545198

Filename

545198