Optical subcarrier multiplexing transmission for base station with adaptive array antenna

Abstract

We propose utilizing a radio-over-fiber technique of optical subcarrier-multiplexing transmission for radio base stations (BSs) with adaptive array antennas. The proposed system can be constructed at low cost since only one optical transmitter and receiver is required for a center station and a BS. Moreover, relative phases among antenna branches are insensitive to equivalent length fluctuation of an optical fiber.Index Terms-Land mobile radio equipment, microwave antenna arrays, optical fiber communication, phase-locked loop, subcarrier multiplexing.

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