A Novel Semi-blind Multiuser Detector for CDMA Reverse Link

In this paper, a semi-blind multi-user detection (MUD) algorithm for CDMA systems is proposed where the codes of intra-cell users are known but the codes of inter-cell users are unknown. This semi-blind multi-user detection algorithm (SB-LSCM) is a joint MUD algorithm of decorrelating algorithm and...

Full description

Saved in:
Bibliographic Details
Main Authors: Sheng-mei Liu, Fent, G., Chun-ming Zhao, Qi Zhu
Format: Conference Proceeding
Language:English
Subjects:
CDMA
Decorrelation
Detectors
Interference cancellation
Interference suppression
Laboratories
Least squares methods
LSCM
Mobile communication
Multiaccess communication
Multiple access interference
Multiuser detection
Semi-blind
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper, a semi-blind multi-user detection (MUD) algorithm for CDMA systems is proposed where the codes of intra-cell users are known but the codes of inter-cell users are unknown. This semi-blind multi-user detection algorithm (SB-LSCM) is a joint MUD algorithm of decorrelating algorithm and Least Square Constant Modulus (LSCM) algorithm. The proposed approach fully utilizes all known users' information, performs non-blind detector to suppress the interferers within the cell, and exploits blind LSCM detector to suppress the remain interferences. The performance of the semi-blind LSCM detector is compared to that of the non-blind decorrelating detector and blind LSCM detector, and it is shown that the semi-blind detector can achieve a considerable performance improvement.
ISSN:1530-1346
2642-7389
DOI:10.1109/ISCC.2006.13