Multiple Antenna Transmitter Diversity by Using Adaptive Carrier Selection for OFDM-DS/CDMA in a Frequency Selective Fading Channel

Kyesan LEE  Masao NAKAGAWA  

Publication
IEICE TRANSACTIONS on Communications   Vol.E86-B   No.5   pp.1605-1611
Publication Date: 2003/05/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Wireless Communication Technology
Keyword: 
OFDM-DS/CDMA,  RAKE diversity,  distributed antenna,  carrier selection,  ISI,  frequency selective fading,  

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Summary: 
In this paper, we propose a new transmitter diversity. We propose a combined system with path diversity gain of the distributed antennas and frequency diversity gain of the multi-carrier. The proposed system transmits different data using several sub-carriers which are correlated, while, transmitting the same data using several sub-carriers which are decorrelated. It can achieve combined path and frequency diversity in a variable frequency selective fading channel. It provides high data rate services by transmitting the different data using each correlated carrier, and supports good quality by transmitting the same data on decorrelated carriers using multiple antennas. The proposed system is applicable to multimedia service and can achieve high quality according to channel condition. Thus, the proposed system is sufficiently flexible enough to very support a variety of video, image, voice and data services at a high level of quality.