Layered transmission based hybrid ARQ scheme for satellite networks

As the satellite network characteristics of long propagation delay and receiver heterogeneity, hybrid ARQ scheme can not be directly applied to satellite network. To adapt the characteristics of satellite network, a new hybrid ARQ scheme is proposed. RSE coding is adopted to recover package losses....

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Bibliographic Details
Published inJi suan ji gong cheng yu ying yong Vol. 47; no. 31; pp. 86 - 90
Main Authors Lu, Lining, Yu, Yucai, Liu, Chunqing
Format Journal Article
LanguageChinese
Published 01.11.2011
Subjects
Assurance
Computer simulation
Delay
Heterogeneity
Packages
Performance evaluation
Receivers
Satellite networks
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Summary:As the satellite network characteristics of long propagation delay and receiver heterogeneity, hybrid ARQ scheme can not be directly applied to satellite network. To adapt the characteristics of satellite network, a new hybrid ARQ scheme is proposed. RSE coding is adopted to recover package losses. Receivers are classified according to their package loss rate, then a layered transmission method is proposed. With this method, receivers can choose to join one or more transmission layers to receive redundancy packages. Thus system efficiency would not be affected by receivers with high package loss rate. Performance evaluation by simulations shows that comparing other reliability assurance schemes, the new hybrid-ARQ scheme achieves better throughput efficiency and scalability.
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ISSN:1002-8331
DOI:10.3778/j.issn.1002-8331.2011.31.024