Optical fiber transmission and that can be shared in free-space transmission optical transceiver and the optical communication network

摘要

A cable network is constituted such that interconnectable, passive 4-terminal star couplers are connected to each other via optical fiber cables and a bi-directional optical relay amplifier. Cells each constituted by using free space transmission light are integrated by the cable network. An optical signal transmitted from or directed to a mobile station in a cell is linked to the cable network via an optical relay amplifier, which provides interface between free space transmission light and guided light. Even in a case where a barrier interposed between two mobile stations prevents a direct communication between those stations, a collision between those stations can be detected by a collision detection proxy server having functions of collision detection according to the principle of code transition rule violation and jamming signal transmission. A communication between those stations can be realized by connecting, to the cable network, a relay proxy server having a packet relay and transmitting function. IMAGE