NDLI: Time-hopping sequence design for narrowband interference suppression

Content Provider	IEEE Xplore Digital Library
Author	Bellorado, J. Ghassenzadeh, S.S. Kavcic, A. Tarokh, B. Tarokh, V.
Copyright Year	2004
Description	Author affiliation: Div. of Eng. & Appl. Sci., Harvard Univ., Cambridge, MA, USA (Bellorado, J.)
Abstract	In this paper, we present a simple interference mitigation solution for the coexistence of ultra-wideband (UWB) systems with other wireless systems. Specifically, we consider the design of time-hopping (TH) codes for UWB systems that deploy an impulse radio architecture. We give a methodology for the construction of TH sequences that minimize the imposed UWB interference on a given narrowband system. To illustrate the effectiveness of our designed codes, we conduct physical layer simulations of the interference induced by UWB signals on close proximity wireless local area networks (WLANs) that deploy the IEEE 802.11a standard. Our performance measure is the IEEE 802.11a client rate degradation vs. distance from its access point. Our results show that, when using optimized TH codes, UWB systems can have no impact on the achievable data-rates and range of IEEE 802.11a WLAN devices; regardless of the position of the UWB system with respect to these devices.
Starting Page	3925
Ending Page	3929
File Size	1941904
Page Count	5
File Format	PDF
ISBN	0780385217
ISSN	10903038
DOI	10.1109/VETECF.2004.1404813
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-09-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Narrowband Interference suppression Wireless LAN USA Councils FCC Bandwidth Ultra wideband technology Design engineering Signal design Physical layer
Content Type	Text
Resource Type	Article

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