Title :
Hybrid Automatic Repeat Requests for MB-OFDM Ultra-Wideband
Author :
Lowe, Darryn ; Huang, Xiaojing
Author_Institution :
Univ. of Wollongong, Wollongong
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 upper- bound for all sets of complementary puncturing matrices. The consequences of selecting sub-optimal puncturing matrices are also quantified.
Keywords :
OFDM modulation; automatic repeat request; telecommunication channels; ultra wideband communication; hybrid automatic repeat request; multiband orthogonal frequency division multiplexing; packet error rate; realistic frequency-selective channels; suboptimal puncturing matrices; ultrawideband standard; Automatic repeat request; Bandwidth; Error analysis; FCC; Information technology; Media Access Protocol; OFDM; Time frequency analysis; Ultra wideband technology; Wireless LAN;
Conference_Titel :
Wireless and Mobile Communications, 2007. ICWMC '07. Third International Conference on
Conference_Location :
Guadeloupe
Print_ISBN :
0-7695-2796-5
Electronic_ISBN :
0-7695-2796-5
DOI :
10.1109/ICWMC.2007.47
