Please use this identifier to cite or link to this item: http://hdl.handle.net/10773/5425
Title: Comparison of space-frequency pre-filtering techniques and space-frequency block coding for DL MC-CDMA Systems
Author: Silva, Adão
Gameiro, Atílio
Keywords: Base stations
Block codes
Channel coding
Code division multiple access
Computational complexity
Multiple access interference
Mobile terminal (MT)
Space-frequency
Signal filtering and prediction
Issue Date: 2006
Publisher: IEEE
Abstract: This paper aims to compare the performance of the different transmit signal design techniques that have been proposed recently for DL MC-CDMA systems and presents a joint space-frequency multi-user pre-filtering and spreading scheme. We consider the use of antenna arrays at the base station (BS) and a single antenna at the mobile terminal (MT) and derive the proposed multi-user space-frequency pre-filtering technique that formats the transmitted signals to eliminate the effects of multiple access interference (MAI) and channel distortions at the mobile terminals, whilst maintaining low MT complexity. Thus, two types of detectors are considered at the MT: simple despreading and single user equalizers. The performance of the different schemes is evaluated, considering either perfect or nonperfect CSI and channel coding based on UMTS specifications, in order to select the best strategy for DL TDD MC-CDMA systems. © 2006 IEEE.
Peer review: yes
URI: http://hdl.handle.net/10773/5425
DOI: 10.1109/ICC.2006.255549
ISBN: 1-4244-0355-3
ISSN: 8164-9547
Appears in Collections:DETI - Comunicações

Files in This Item:
File Description SizeFormat 
adao_icc_2006.pdf7.9 MBAdobe PDFView/Open    Request a copy


FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpace
Formato BibTex MendeleyEndnote Degois 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.