RADIO MULTI-HOP COOPERATIVE COMMUNICATION APPARATUS AND COMMUNICATION SYSTEM USING ORTHOGONAL FREQUENCY DIVISION MULTIPLEX SYSTEM (OFDM)

摘要

PROBLEM TO BE SOLVED: To provide a practical apparatus capable of achieving cooperative communication using a route diversity effect in a radio multi-hop network without deteriorating the utilization efficiency of radio resources and efficiently achieving highly reliable radio communication.

SOLUTION: By improving Carrier Sense Multiple Access/Collision Avoidance (CSMA/CA) that is channel access control of an existing technology, transmission time is autonomously synchronized while retaining random access properties to a channel between a plurality of radio apparatuses. A plurality of radio terminals that are intermediate equipment transmit a received OFDM signal at substantially the same time.

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