A novel Markov-chain-based method for throughput analysis in truncated cooperative HARQ systems

Cooperative hybrid automatic retransmission request (HARQ) scheme, which combines cooperative communication (CC) technique and HARQ scheme, is one of the key techniques in the future wireless communications. It can reduce the retransmissions of traditional ARQ schemes, resulting in a better throughput performance. In this paper, we analyze the throughput performance of a truncated cooperative HARQ scheme with decode-and-forward (DF) relaying. A discrete time Markov chain (DTMC) model is introduced, and a closed-form expression of the throughput of the truncated cooperative HARQ scheme is derived based on the outage behavior of the scheme. Numerical and simulation results are presented to validate our analysis.

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