Low complexity adaptive receiver for CDMA with multipath fading

Author

Gollamudi, Sridhar ; Nagaraj, Shirish ; Kapoor, Samir ; Huang, Yih-Fang

Author_Institution

Dept. of Electr. Eng., Notre Dame Univ., IN, USA

fYear

1997

fDate

17-19 Dec 1997

Firstpage

52

Lastpage

56

Abstract

A new receiver scheme for a DS-CDMA system similar to the IS-95 uplink is proposed in this paper that is of lower complexity and superior bit error rate performance in comparison to the conventional non-coherent RAKE receiver. The proposed receiver consists of a coherent RAKE receiver in the form of a transversal filter, and uses channel estimates obtained by an adaptive channel identification algorithm. Adaptation follows the set-membership filtering methodology, that features fast convergence and lower computational complexity compared to least-squares techniques

Keywords

adaptive estimation; cellular radio; code division multiple access; computational complexity; error statistics; fading; multipath channels; radio receivers; spread spectrum communication; DS-CDMA system; IS-95 uplink; adaptive channel identification algorithm; bit error rate performance; channel estimates; coherent RAKE receiver; computational complexity; fast convergence; low complexity adaptive receiver; multipath fading; set-membership filtering methodology; transversal filter; Convergence; Diversity reception; Fading; Filtering; Fingers; Matched filters; Multiaccess communication; Multipath channels; RAKE receivers; Transversal filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal Wireless Communications, 1997 IEEE International Conference on

Conference_Location

Mumbai

Print_ISBN

0-7803-4298-4

Type

conf

DOI

10.1109/ICPWC.1997.655477

Filename

655477