A novel multipath diversity scheme in TDD-CDMA systems

Author

Wang, Ji-Bing ; Zhao, Ming ; Zhou, Shi-dong ; Yao, Yan

Author_Institution

Dept. of Electron. Eng., Tsinghua Univ., Beijing, China

fYear

1999

fDate

1999

Firstpage

77

Lastpage

79

Abstract

A novel multipath diversity scheme used in TDD-CDMA systems is presented. A FIR filter is added in the transmitter while a RAKE combiner is used in the receiver. The optimum FIR filter problem may be viewed as an eigenvalue problem. The multiple antennas system is also analyzed. Results show that this new scheme can greatly improve the output signal to noise ratio (SNR) compared with conventional RAKE receiver or pre-RAKE diversity system

Keywords

FIR filters; code division multiple access; diversity reception; eigenvalues and eigenfunctions; filtering theory; multipath channels; multiuser channels; radio receivers; radio transmitters; RAKE combiner; RAKE receiver; SNR; TDD-CDMA systems; eigenvalue problem; multipath diversity; multiple antennas system; optimum FIR filter problem; output signal to noise ratio; pre-RAKE diversity system; receiver; transmitter; AWGN; Additive white noise; Fading; Fingers; Finite impulse response filter; Gaussian noise; Multipath channels; RAKE receivers; Signal to noise ratio; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio and Wireless Conference, 1999. RAWCON 99. 1999 IEEE

Conference_Location

Denver, CO

Print_ISBN

0-7803-5454-0

Type

conf

DOI

10.1109/RAWCON.1999.810934

Filename

810934