Performance of Multistage Detectors in Synchronous CDMA Mobile Communication System.

Document Type : Research Studies

Authors

1 Switching Department., National Telecom., Institute., Cairo., Egypt.

2 Electronics and Communications Department., Arab Academy for Science., Technology and Maritime Transport., Cairo., Egypt.

3 Electronics Department., National Telecom., Institute., Cairo., Egypt.

Abstract

Multiuser detection (MUD) is central to the fulfillment of the capabilities of Code-division-multiple access (COMA), which is becoming the ubiquitous air- interface in future generation communication system. The problem of multiple access interference (MAI) is vital for a CDMA system. A variety of MUD has been proposed to mitigate the MAI. The simplest one is the single-user matched filter approach, which totally ignores the existence of MAI. Its performance is not very satisfactory and is particularly limited by the near-far problem. This paper presents the performance of different types of detectors as Well as a solution for the near-far-problem using the decorrelator detector type.

Main Subjects

MEJ- Mansoura Engineering Journal
Volume 31, Issue 4
December 2006
Pages 9-17

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