A novel MMSE detection technique for DS-CDMA

Author

Luo, Tao ; Wu, Gang ; Li, Shaoqian ; Guan, Yong Liang ; Law, Choi Look

Author_Institution

Univ. of Electron. Sci. & Technol. of China, Chendu

fYear

2007

fDate

10-13 Dec. 2007

Firstpage

1

Lastpage

4

Abstract

A novel linear per user minimum mean square error (PU-MMSE) detection technique for direct sequence code- division multiple access (DS-CDMA) with frequency domain equalization (FDE) based on the MMSE criterion applied per user is presented, which approximately restores the orthogonality among the spreading sequences and reduces the interference. It is shown by computer simulation that the DS-CDMA with PU-MMSE FDE obviously outperforms the DS-CDMA with conventional MMSE FDE.

Keywords

code division multiple access; equalisers; frequency-domain analysis; interference suppression; least mean squares methods; spread spectrum communication; DS-CDMA; MMSE detection technique; direct sequence code- division multiple access; frequency domain equalization; interference reduction; minimum mean square error; Bit error rate; Downlink; Fading; Frequency domain analysis; Interference; Mean square error methods; Multiaccess communication; Multicarrier code division multiple access; Performance gain; Wireless communication; Direct sequence code-division multiple access(DS-CDMA); frequency domain equalization (FDE); per user minimum mean square error (PU-MMSE);

fLanguage

English

Publisher

ieee

Conference_Titel

Information, Communications & Signal Processing, 2007 6th International Conference on

Conference_Location

Singapore

Print_ISBN

978-1-4244-0982-2

Electronic_ISBN

978-1-4244-0983-9

Type

conf

DOI

10.1109/ICICS.2007.4449607

Filename

4449607