Hybrid ARQ with rate adaptation in multiband OFDM UWB systems

Cheng Xiang Wang, Heung Gyoon Ryu, Hsiao H. Chen, He Yejun

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, we propose a cross-layer design (CLD) scheme combining rate adaptation and four types of hybrid automatic repeat request (HARQ) for multiband orthogonal frequency division multiplexing (MB-OFDM) ultra wideband (UWB) systems following the ECMA-368 standard. The time varying property is incorporated into standard UWB channel models for the purpose of investigating rate adaptation. To accurately accommodate fast time-varying channel conditions, we propose to embed the selected rate information into the acknowledgement (ACK) frames. It is shown that the proposed CLD scheme combining rate adaptation and HARQ can provide higher throughput than the HARQ-only schemes. Among the four types of HARQ schemes, HARQ Type-III has the best throughput performance while Type I has the worst. ©2009 IEEE.

Original languageEnglish
Title of host publicationProceedings - 2009 IEEE International Conference on Communications, ICC 2009
DOIs
Publication statusPublished - 2009
EventIEEE International Conference on Communications 2009 - Dresden, Germany
Duration: 14 Jun 200918 Jun 2009

Conference

ConferenceIEEE International Conference on Communications 2009
Abbreviated titleICC 2009
CountryGermany
CityDresden
Period14/06/0918/06/09

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  • Cite this

    Wang, C. X., Ryu, H. G., Chen, H. H., & Yejun, H. (2009). Hybrid ARQ with rate adaptation in multiband OFDM UWB systems. In Proceedings - 2009 IEEE International Conference on Communications, ICC 2009 https://doi.org/10.1109/ICC.2009.5199058