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In this letter, we investigate a joint power and rate optimization for a multihop relay network with incremental redundancy hybrid ARQ (HARQ-IR), where multiple relays are serially connected from a source to a destination. The optimization problem is to adjust both transmission rate and power of each node in order to maximize long-term average transmission rate (LATR) for given sum-power and delay...
We consider a linear multihop relay network adopting Chase-combining type Hybrid ARQ strategy in Rayleigh fading channels. The total number of (re)transmissions is assumed to be not limited, i.e., we consider delay-tolerant applications. We aim at maximizing the average throughput by jointly optimizing the transmit powers and data rates over all hops, while limiting the sum of transmit powers of all...
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