Cooperative Diversity using Distributed Turbo Codes

A novel coding technique, termed distributed turbo coding, is proposed for the quasi-static relay channel. The source broadcasts a recursive code to both relay and destination. After detecting the data broadcasted by the source, the relay interleaves and re-encodes the message prior to forwarding it to the destination. Because the destination receives both codes in parallel, a distributed turbo code is embedded in the relay channel. Simulation results show that the proposed code performs close to the information-theoretic bound on outage event probability.

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