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Proposal of Direct Optical Switching CDMA for Cable-To-The-Air System and Its Performance Analysis
Sangjo PARK Katsutoshi TSUKAMOTO Shozo KOMAKI
IEICE TRANSACTIONS on Communications
Publication Date: 1998/06/25
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Optical Communication
microwave photonics, radio over fiber system, CATV, optical CDMA,
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For Cable-To-The-Air network providing a seamless access network in both indoor and outdoor, direct optical switching CDMA scheme is newly proposed to multiplex any types of radio signals. In two types of connection methods, optical switch connection and optical coupler connection systems, the received carrier-to-interference-plus-noise power ratios are theoretically analyzed. It is clarified that in the optical switch connection connection system, by introducing the additional optical gain at each radio base station, the carrier-to-interference-plus-noise power ratios for all radio base stations and the connected number of radio base stations can be improved compared with the OC connection system.