DocumentCode :
1602644
Title :
Multi-user Frequency Pre-filtering Technique for MIMO SFBC MC-CDMA Systems
Author :
Silva, Adão ; Silva, Elídio ; Gameiro, Atílio
Author_Institution :
Dept. Electron. & Telec., Inst. de Telecomun., Aveiro
fYear :
2008
Firstpage :
1
Lastpage :
5
Abstract :
This paper deals with downlink space-frequency block coding (SFBC) with a multi-user pre-filtering technique for MIMO MC-CDMA systems. We consider the use of an antenna array at both the base station (BS) and the user terminal (UT). The space-frequency block codes allow that the spatial diversity be efficiently exploited and the linear multi-user frequency pre-filtering technique modulates the transmitted signal to eliminate the effects of multiple access interference (MAI) and channel distortions at the user terminals. The aim of this technique is to transfer the most computational complexity from UT to the BS, keeping the first one at very low complexity. The performance of the proposed scheme is evaluated, considering typical pedestrian scenario and both uncoded data and channel turbo coding based on UMTS specifications.
Keywords :
3G mobile communication; MIMO communication; antenna arrays; block codes; channel coding; code division multiple access; computational complexity; diversity reception; filtering theory; interference suppression; radiofrequency interference; space-time codes; turbo codes; MIMO SFBC MC-CDMA system; UMTS specification; antenna array; channel distortions; computational complexity; downlink space-frequency block coding; multiple access interference elimination; multiuser frequency prefiltering technique; pedestrian scenario; spatial diversity; Antenna arrays; Base stations; Block codes; Chirp modulation; Downlink; Frequency diversity; Frequency modulation; MIMO; Multicarrier code division multiple access; Multiple access interference;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Systems and Networks Communications, 2008. ICSNC '08. 3rd International Conference on
Conference_Location :
Sliema
Print_ISBN :
978-0-7695-3371-1
Type :
conf
DOI :
10.1109/ICSNC.2008.52
Filename :
4693636
Link To Document :
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