NDLI: Clustering wireless channel impulse responses in angular-delay domain

Content Provider	IEEE Xplore Digital Library
Author	Shutin, D.
Copyright Year	2004
Description	Author affiliation: Inst. of Signal Process. & Speech Commun., Graz Univ. of Technol., Austria (Shutin, D.)
Abstract	This work introduces a novel wireless MIMO channel clustering technique implemented in angular and delay domains. The clustering is preceded by extraction of angular and delay information from the sampled impulse response. Akaike information criterion (AIC) has been used to find the number of multipath components arriving at the same delay bin but having different directions of incidence. The latter have been resolved with ESPRIT algorithm. A modified Saleh-Valenzuela model is used as a basis for the derivation of the unsupervised clustering algorithm. To avoid estimation of the joint angle-delay density function required for the clustering algorithm, it is 'factorized' algorithmically by first identifying clusters in the delay domain and then finding angular clusters 'conditioned' on the corresponding delay cluster. The algorithm has been applied to measured MIMO channel impulse responses and is able to find visually identifiable clusters as well as their width.
Starting Page	253
Ending Page	257
File Size	1782517
Page Count	5
File Format	PDF
ISBN	0780383370
DOI	10.1109/SPAWC.2004.1439243
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-07-11
Publisher Place	Portugal
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Delay estimation Clustering algorithms Signal processing algorithms MIMO Data mining Fading Transceivers Signal processing Oral communication Density functional theory
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
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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