NDLI: Review of Frequency Selectivity Parameters for Broadband Signals

Content Provider	IEEE Xplore Digital Library
Author	Hinostroza, V. Garces, H. Flores, G.
Copyright Year	2007
Description	Author affiliation: Univ. of Ciudad Juarez, Juarez (Hinostroza, V.)
Abstract	This work is about the effect of frequency selectivity on multi-carrier wideband signals in two different environments; indoors and outdoor to indoor. The investigation was made using measurements carried out with a sounder with a 300 MHz bandwidth. The main part of this work is to evaluate the contribution of several related parameters; frequency selective fading, coherence bandwidth and delay spread on the frequency selectivity of the channel. A description of the sounder parameters and the sounded environments are given. The 300 MHz bandwidth is divided in segments as small as 60 kHz to perform the evaluation of frequency selective fading. Sub channels of 20 MHz for OFDM systems and 5 MHz for WCDMA were evaluated. Graphics are provided for a number of bands, parameters and locations in the different environments. It is also shown the variation of the signal level due to frequency selective fading. The practical assumptions about the coherence bandwidth and delay spread are reviewed and a comparison is made with actual measurements. Statistical analysis was performed over some of the results.
Starting Page	173
Ending Page	176
File Size	206837
Page Count	4
File Format	PDF
ISBN	9782874870033
DOI	10.1109/ECWT.2007.4403974
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-10-08
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	European Microwave Association
Subject Keyword	Fading Performance evaluation Statistical analysis OFDM Frequency conversion frequency correlation Multiaccess communication impulse response and multi-carrier modulation Delay Graphics Bandwidth frequency selective fading Wideband Coherence bandwidth
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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