NDLI: Singular Value Decomposition-Based Algorithm for Suppression of IEEE 802.11 a Interference in Multiple Access TH-UWB Systems

Content Provider	IEEE Xplore Digital Library
Author	Xu, Shaoyi Bai, Zhiquan Yang, Qinghai Kwak, Kyung Sup
Copyright Year	2007
Description	Author affiliation: UWB Wireless Communications Research Center (UWB-ITRC), the Graduate School of Information Technology and Telecommunications, Inha University, KOREA. E-mail: shaoyixu@hotmail.com (Xu, Shaoyi) \|\| UWB Wireless Communications Research Center (UWB-ITRC), the Graduate School of Information Technology and Telecommunications, Inha University, KOREA. E-mail: kskwak@inha.ac.kr (Kwak, Kyung Sup) \|\| UWB Wireless Communications Research Center (UWB-ITRC), the Graduate School of Information Technology and Telecommunications, Inha University, KOREA. E-mail: sdzqbai@hotmail.com (Bai, Zhiquan) \|\| UWB Wireless Communications Research Center (UWB-ITRC), the Graduate School of Information Technology and Telecommunications, Inha University, KOREA. E-mail: yangqing_hai@hotmail.com (Yang, Qinghai)
Abstract	Coexisting with other narrowband services, the performance of ultra wideband (UWB) systems will be affected considerably due to the high power of these narrow-band signals. Specifically, IEEE 802.11a systems which operate around 5 GHz and overlap the band of UWB signals will interfere with UWB systems significantly. In this paper, we suggest a novel narrow-band interference (NBI) suppression technique based on the singular value decomposition (SVD) algorithm in multi-access time hopping UWB (TH-UWB) systems. SVD is used to approximate the NBI which then is subtracted from the received signals. Pulse amplitude modulation (PAM) and pulse position modulation (PPM) are considered. In contrast to the conventional suppression methods such as the notch filter and the maximal-ratio combining partial RAKE (MRC PRAKE) receiver, our proposed technique is simple and robust, the hardware complexity of the receiver can be reduced greatly even in the presence of multi-access interference (MAI).
Starting Page	105
Ending Page	111
File Size	3577216
Page Count	7
File Format	PDF
ISBN	9781424408146
DOI	10.1109/CROWNCOM.2007.4549781
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-08-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	maximal-ratio combining partial RAKE (MRC PRAKE) Amplitude modulation time hopping ultra-wideband (TH-UWB) Pulse modulation Narrowband Interference suppression Filters RAKE receivers multi-access interference (MAI) Diversity reception narrow-band interference (NBI) Robustness Ultra wideband technology Singular value decomposition singular value decomposition (SVD)
Content Type	Text
Resource Type	Article

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