A simple Bayesian multistage interference canceller for multiuser detection in TDD-CDMA receivers

A simple multiuser detector (MUD) is proposed for channels affected by severe multipath and is then suitable for time-division duplexing code-division multiple-access (TDD-CDMA) receivers. For each user, after coherent combining and despreading, a suitable "Bayesian" memoryless nonlinearit...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on vehicular technology 2001-07, Vol.50 (4), p.920-924
Main Authors: Cusani, R., Di Felice, M., Mattila, J.
Format: Article
Language:English
Subjects:
Additive noise
Additive white noise
AWGN
Bayesian analysis
Binary phase shift keying
Cancellers
Channels
Coherence
Gaussian noise
Interference
Interference cancellation
Intersymbol interference
Multiaccess communication
Multiple access interference
Multistage
Multiuser detection
Nonlinearity
Receivers
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A simple multiuser detector (MUD) is proposed for channels affected by severe multipath and is then suitable for time-division duplexing code-division multiple-access (TDD-CDMA) receivers. For each user, after coherent combining and despreading, a suitable "Bayesian" memoryless nonlinearity gives symbol-by-symbol the expected values of the transmitted data. These are employed for soft removal of intersymbol and multiple-access interference (MAI) from the received sequences. The procedure is iterated in a multistage structure until final decisions are taken. From the comparison with other solutions, the proposed receiver exhibits better performance (close to the ideal canceller) and equal or minor complexity.
ISSN:0018-9545
1939-9359
DOI:10.1109/25.938569