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Methods for packet combining in HARQ systems over bursty channels

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Abstract

The performance of ARQ systems can be improved by combining current and prior transmissions at the receiver. Two techniques for combining outputs in a packet-based communication system are presented. In both techniques the fundamental unit of retransmission is a packet, and the fundamental unit of combining is a codeword. The techniques are analyzed for a bursty channel and a system that employs Reed–Solomon coding and bounded-distance errors-and-erasures decoding. Performance results show that the packet-combining schemes provide significant gains in throughput and reductions in error probability when compared with a system that does not employ combining.

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Daraiseh, AG.A., Baum, C.W. Methods for packet combining in HARQ systems over bursty channels. Mobile Networks and Applications 2, 213–224 (1997). https://doi.org/10.1023/A:1013632716967

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