Multi-shot approach to multiuser separation and interference suppression in asynchronous CDMA

Document Type

Article

Publication Date

1-1-2000

Abstract

In this work, we present a new, computationally simple scheme (termed multi-shot approach) to separate and detect multiuser signals in an asynchronous code-division multiple-access (CDMA) communications system. By exploring the structure inherent in the matrix decomposition of properly arranged data, obtained from multi-shot matched filtering, we propose a near-far resistant multiuser detector. The proposed multiuser detector combines the multiple snapshots of matched filter outputs through a matrix filtering and de-biasing processing, revealed from the structure inherent in properly arranged data, prior to the final stage of decision making. Simulation results demonstrate the superior performance of the newly proposed computationally efficient detection scheme in comparison with other existing methods of comparable complexity.

Identifier

0033875318 (Scopus)

Publication Title

Wireless Personal Communications

External Full Text Location

https://doi.org/10.1023/A:1008884925717

ISSN

09296212

First Page

15

Last Page

26

Issue

1

Volume

12

Grant

F30602-94-C-0135

Fund Ref

Nanjing Institute of Technology

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