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Distributed turbo coding (DTC) has been shown to be able to approach the information-theoretic capacity of wireless relay networks. However, decoding errors at the relay can lead to severe error propagation and hinder the achievement of such capacity. In order to increase the decoding success rate at the relay, thereby enhancing the DTC system performance, we propose a novel DTC scheme, referred to...
Wireless decode-and-forward (DF) relay networks suffer from severe latency due to multi-hop propagation. When hybrid ARQ (HARQ) is employed, the latency leads to the throughout degradation of individual HARQ processes because of the decreased number of retransmissions of unsuccessful packets in a given time. We propose two new distributed cooperative HARQ protocols to not only reduce latency but also...
In this paper, two improved distributed turbo coded (DTC) schemes, namely, superposition DTC scheme and punctured DTC scheme, are proposed for a two-hop relay system using decode-and-forward protocol. The performance of a communication system using relay mainly depends on the successful decoding of source information at the relay. The proposed techniques increase the decoding success rate at the relay...
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