Analysis of a delay-constrained hybrid ARQ wireless system

Kelvin K. Lee; Samuel T. Chanson

doi:10.1109/TCOMM.2006.884844

Analysis of a delay-constrained hybrid ARQ wireless system

Kelvin K. Lee, Samuel T. Chanson

Hong Kong Metropolitan University

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

A real-time wireless system using hybrid automatic repeat request to correct errors is analyzed. Packet errors are modeled by a two-state Markov chain, and batch packet arrivals are allowed. Packets are dropped at the sender if their delays exceed a time limit, possibly after a number of retransmissions. Using the delay-model approach, a closed-form expression of packet-loss probability (PLP) and an approximate formula of wireless effective bandwidth (WEB) satisfying the quality of service requirements have been derived. If Bose-Chaudhuri-Hocquenghem codes are used, an expression estimating the number of correctable bits to minimize the PLP has also been obtained. Moreover, the WEB is found to be independent of the packet size, and the PLP decreases exponentially as the WEB increases.

Original language	English
Pages (from-to)	2014-2022
Number of pages	9
Journal	IEEE Transactions on Communications
Volume	54
Issue number	11
DOIs	https://doi.org/10.1109/TCOMM.2006.884844
Publication status	Published - Nov 2006

Keywords

Batch arrivals
Delay model
Markov chain
Packet-loss probability (PLP)
Wireless effective bandwidth

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10.1109/TCOMM.2006.884844

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abstract = "A real-time wireless system using hybrid automatic repeat request to correct errors is analyzed. Packet errors are modeled by a two-state Markov chain, and batch packet arrivals are allowed. Packets are dropped at the sender if their delays exceed a time limit, possibly after a number of retransmissions. Using the delay-model approach, a closed-form expression of packet-loss probability (PLP) and an approximate formula of wireless effective bandwidth (WEB) satisfying the quality of service requirements have been derived. If Bose-Chaudhuri-Hocquenghem codes are used, an expression estimating the number of correctable bits to minimize the PLP has also been obtained. Moreover, the WEB is found to be independent of the packet size, and the PLP decreases exponentially as the WEB increases.",

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AB - A real-time wireless system using hybrid automatic repeat request to correct errors is analyzed. Packet errors are modeled by a two-state Markov chain, and batch packet arrivals are allowed. Packets are dropped at the sender if their delays exceed a time limit, possibly after a number of retransmissions. Using the delay-model approach, a closed-form expression of packet-loss probability (PLP) and an approximate formula of wireless effective bandwidth (WEB) satisfying the quality of service requirements have been derived. If Bose-Chaudhuri-Hocquenghem codes are used, an expression estimating the number of correctable bits to minimize the PLP has also been obtained. Moreover, the WEB is found to be independent of the packet size, and the PLP decreases exponentially as the WEB increases.

KW - Batch arrivals

KW - Delay model

KW - Markov chain

KW - Packet-loss probability (PLP)

KW - Wireless effective bandwidth

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JO - IEEE Transactions on Communications

JF - IEEE Transactions on Communications

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Analysis of a delay-constrained hybrid ARQ wireless system

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Keywords

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