Suboptimum multiuser detection of DS/CDMA systems using antenna arrays in asynchronous channels

Author

Kim, Kwang Soon ; Kim, Yun Hee ; Lee, Jooshik ; Song, Iickho ; Kim, Suk Chan

Author_Institution

Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea

Volume

3

fYear

1997

fDate

3-8 Nov 1997

Firstpage

1494

Abstract

We consider quasi maximum likelihood (quasi-ML) detection in the reverse link system which uses antenna arrays in asynchronous channels. It is shown that the proposed quasi-ML detector can be regarded as a beamformer followed by a decorrelator, that the proposed system performs better than the conventional decorrelator, and that the performance gain over the conventional decorrelator system increases as the number of active users and number of antenna arrays increase

Keywords

antenna arrays; array signal processing; code division multiple access; correlation methods; direction-of-arrival estimation; land mobile radio; maximum likelihood detection; radio links; spread spectrum communication; telecommunication channels; DS/CDMA systems; antenna arrays; asynchronous channels; beamformer; decorrelator; mobile radio; performance gain; quasi maximum likelihood; quasi-ML detection; reverse link system; suboptimum multiuser detection; Antenna arrays; Base stations; Decorrelation; Detectors; Fading; Interference elimination; Maximum likelihood detection; Multiaccess communication; Multiuser detection; Performance gain; Sensor arrays;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 1997. GLOBECOM '97., IEEE

Conference_Location

Phoenix, AZ

Print_ISBN

0-7803-4198-8

Type

conf

DOI

10.1109/GLOCOM.1997.644383

Filename

644383