A novel combination algorithm based on chip equalizer and multipath interference cancellation

Author

Gao, Zhan ; Wu, Qihui ; Wan, Jintong

Author_Institution

Inst. of Commun. Eng., PLA Univ. of Sci. & Technol., Nanjing, China

Volume

2

fYear

2004

fDate

31 Aug.-4 Sept. 2004

Firstpage

1786

Abstract

High-speed packet transmission is an important characteristic in the 3^rd generation mobile communication system. In order to enhance the performance of the high-speed packet transmission in low spreading factor, a new structure of chip equalizer (LMMSE-MPIC) is presented in this paper, which combines the linear chip equalizer with nonlinear multipath interference cancellation together. The algorithm (PC-LMMSE) is proposed based on pilot cancellation. Theoretic analysis and computer simulations show that LMMSE-MPIC is superior to conventional Rake and chip equalizer and effectively improves the performance of the WCDMA system in low spreading factor.

Keywords

3G mobile communication; broadband networks; code division multiple access; equalisers; interference suppression; least mean squares methods; multipath channels; packet radio networks; radiofrequency interference; 3^rd generation mobile communication; 3G; LMMSE-MPIC; PC-LMMSE; WCDMA system; high-speed packet transmission; linear chip equalizer; linear minimum mean squared error; nonlinear multipath interference cancellation; pilot cancellation; spreading factor; wideband code division multiple access; Algorithm design and analysis; Code standards; Equalizers; Fading; Interference cancellation; Mobile communication; Multiaccess communication; Performance analysis; Programmable logic arrays; Proposals;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing, 2004. Proceedings. ICSP '04. 2004 7th International Conference on

Print_ISBN

0-7803-8406-7

Type

conf

DOI

10.1109/ICOSP.2004.1441682

Filename

1441682