Parity retransmission hybrid ARQ using rate 1/2 convolutional codes on a nonstationary channel
A parity retransmission hybrid automatic repeat request (ARQ) scheme is proposed which uses rate 1/2 convolutional codes and Viterbi decoding. A protocol is described which is capable of achieving higher throughputs than previously proposed parity retransmission schemes. The performance analysis is...
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| Main Authors: | , , |
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| Format: | text |
| Language: | English |
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Institutional Knowledge at Singapore Management University
1989
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| Subjects: | |
| Online Access: | https://ink.library.smu.edu.sg/sis_research/105 https://ink.library.smu.edu.sg/context/sis_research/article/1104/viewcontent/Parity_Retransmission_Hybrid_ARQ_ssing_Rate.pdf |
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| Institution: | Singapore Management University |
| Language: | English |
| Summary: | A parity retransmission hybrid automatic repeat request (ARQ) scheme is proposed which uses rate 1/2 convolutional codes and Viterbi decoding. A protocol is described which is capable of achieving higher throughputs than previously proposed parity retransmission schemes. The performance analysis is based on a two-state Markov model of a nonstationary channel. This model constitutes a first approximation to a nonstationary channel. The two-state channel model is used to analyze the throughput and undetected error probability of the protocol presented when the receiver has both an infinite and a finite buffer size. It is shown that the throughput improves as the channel becomes more bursty |
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