T. Higashino, T. Yamakami, K. Tsukamoto, S. Komaki
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Link quality based MIMO antenna selection in RoF ubiquitous antenna
Recently, multi-antenna technology is used in almost new radio communication technology such as MIMO (multiple-input multiple-output). The centralized signal processing is one of features of the Radio-on-Fiber distributed antenna application. This paper proposes a link quality based antenna selection in Radio-on-Fiber ubiquitous antenna system. In this system, the channel state information is gathered by the centralized control station (CCS). Proposed scheme selects an antenna element with high SNR for multi-user (MU-) MIMO parallel transmission at outdoor radio propagation channel in the presence of shadowing. Proposed scheme improves BER performance with suppressing SNR gap among received MIMO signals compared with the system without using RoF remote antenna.
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