NDLI: Ultra-wideband spatio-temporal channel sounding with use of an OFDM signal in the presence of narrowband interference

Content Provider	IEEE Xplore Digital Library
Author	Sugizaki, D. Iwakiri, N. Kobayashi, T.
Copyright Year	2010
Description	Author affiliation: Wireless Systems Laboratory, Tokyo Denki University, 2-2 Kanda-nishiki-cho, Chiyoda-ku, 101-8457 Japan (Sugizaki, D.; Iwakiri, N.; Kobayashi, T.)
Abstract	An Ultra wideband (UWB) spatio-temporal channel sounder, employing an orthogonal frequency division multiplexing (OFDM) signal and a receiving virtual array antenna was prototyped and evaluated in a narrowband interference environment. Channel information of the OFDM signal was estimated from the measured data. Time of arrival (TOA) was calculated by correlating the received waveforms with a template. Angle of arrival (AOA) was derived by employing a multiple signal classification (MUSIC) algorithm and an angular histogram method proposed by the authors. The frequency spectrum and the AOA of the narrowband interference signal can be simultaneously estimated by means of the same methodology. Propagation experiments were carried out to validate the techniques in one- and two-path environments in a radio anechoic chamber. The bandwidths of the UWB OFDM and the narrowband signals were respectively 500 and 20 MHz. The TOA and the AOA of the wideband signal were estimated within reasonable bounds of error in the presence of narrowband interference, and the AOA and the occupied bandwidth of the narrowband signal were also satisfactorily estimated.
Starting Page	1
Ending Page	10
File Size	472649
Page Count	10
File Format	PDF
ISBN	9781424479085
e-ISBN	9781424479078
e-ISBN	9781424479061
DOI	10.1109/ICSPCS.2010.5709743
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-12-13
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ultra wideband OFDM Interference angle of arrival Multiple signal classification delay profile Niobium Narrowband cognitive radio channel sounder time of arrival Arrays radio propagation Wideband
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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