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 Comparison of space-frequency pre-filtering techniques and space-frequency block coding for DL MC-CDMA Systems
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
authors: 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.
URI: http://hdl.handle.net/10773/5425
ISBN: 1-4244-0355-3
ISSN: 8164-9547
publisher version/DOI: http://dx.doi.org/10.1109/ICC.2006.255549
source: ICC '06: IEEE International Conference on Communications
appears in collectionsDETI - Comunicações

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