Hybrid Automatic Repeat Requests for MB-OFDM Ultra-Wideband

Authors:
Darryn Lowe;Xiaojing Huang
Affiliations:
University of Wollongong, Australia;University of Wollongong, Australia
Venue:
ICWMC '07 Proceedings of the Third International Conference on Wireless and Mobile Communications
Year:
2007

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Cited 1

Hybrid ARQ with rate adaptation in multiband OFDM UWB systems

ICC'09 Proceedings of the 2009 IEEE international conference on Communications

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Abstract

This paper analyzes the design and performance of hybrid automatic repeat request (HARQ) extensions to the multi-band orthogonal frequency division multiplexing (MB-OFDM) ultra-wideband (UWB) standard. It is shown how both Type-I and Type-III HARQ can significantly reduce the packet error rate (PER) in realistic frequency-selective channels. An exhaustive search is used to find an optimal low-complexity Type-III HARQ scheme by deriving the distance spectra and bit error upperbound for all sets of complementary puncturing matrices. The consequences of selecting sub-optimal puncturing matrices are also quantified.