NDLI: Generalized Correlation Decomposition-Based Blind Channel Estimation in DS-CDMA Systems With Unknown Wide-Sense Stationary Noise

Content Provider	IEEE Xplore Digital Library
Author	Zarifi, K. Gershman, A.B.
Copyright Year	1991
Abstract	A new blind subspace-based channel estimation technique is proposed for direct-sequence code-division multiple access (DS-CDMA) systems operating in the presence of unknown wide-sense stationary noise. Unlike most of the blind techniques developed for unknown correlated noise environments so far, the proposed algorithm is applicable to an arbitrary symbol constellation and does not require any auxiliary antennas at the receiver or any prior knowledge of the interfering user spreading codes. Our approach exploits the centro-Hermitian property of the unknown noise covariance matrix and makes use of the generalized correlation decomposition (GCD) to obtain an accurate estimate of the noise subspace and, consequently, of the user-of- interest channel vector. We also obtain optimal values of the GCD weighting matrices which maximally preserve the orthogonality of the estimated noise subspace to the actual signal subspace in the high signal-to-noise ratio (SNR) regime. It is shown that such an optimal choice of the weighting matrices transforms GCD to an extended form of the conventional canonical correlation decomposition (CCD). Simulation results further demonstrate that if such an extended CCD-based approach is used to estimate the user-of-interest channel vector, then the estimation performance can be substantially improved as compared to earlier SVD-based blind channel estimation techniques.
Sponsorship	IEEE Signal Processing Society
Starting Page	5605
Ending Page	5617
Page Count	13
File Size	547399
File Format	PDF
ISSN	1053587X
Volume Number	56
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Blind equalizers Multiaccess communication Working environment noise Signal to noise ratio Covariance matrix Matrix decomposition Channel estimation Direct-sequence code-division multiple access Receiving antennas Charge coupled devices subspace techniques Blind channel estimation canonical correlation decomposition (CCD) generalized correlation decomposition (GCD) multiuser detection
Content Type	Text
Resource Type	Article
Subject	Signal Processing Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Blind channel estimation in DS-CDMA systems with unknown wide-sense stationary noise using generalized correlation decomposition

Subspace-Based Blind Channel Estimation in DS-CDMA Systems with Unknown Wide-Sense Stationary Interference

Blind Subspace-Based Signature Estimation in DS-CDMA Systems With Unknown Wide-Sense Stationary Interference

Blind channel estimation via subspace approximation

Blind joint equalization and multiuser detection for DS-CDMA in unknown correlated noise

Performance analysis of subspace-based signature waveform estimation algorithms for DS-CDMA systems with unknown correlated noise

Blind joint equalization and multiuser detection for DS-CDMA in unknown correlated noise

QR decomposition based blind channel acquisition and estimation for DS-CDMA

Semi-blind channel estimation on inaccurate noise subspace for MIMO systems

Generalized Correlation Decomposition-Based Blind Channel Estimation in DS-CDMA Systems With Unknown Wide-Sense Stationary Noise

Similar Documents

Blind channel estimation in DS-CDMA systems with unknown wide-sense stationary noise using generalized correlation decomposition

Subspace-Based Blind Channel Estimation in DS-CDMA Systems with Unknown Wide-Sense Stationary Interference

Blind Subspace-Based Signature Estimation in DS-CDMA Systems With Unknown Wide-Sense Stationary Interference

Blind channel estimation via subspace approximation

Blind joint equalization and multiuser detection for DS-CDMA in unknown correlated noise

Performance analysis of subspace-based signature waveform estimation algorithms for DS-CDMA systems with unknown correlated noise

Blind joint equalization and multiuser detection for DS-CDMA in unknown correlated noise

QR decomposition based blind channel acquisition and estimation for DS-CDMA

Semi-blind channel estimation on inaccurate noise subspace for MIMO systems

Generalized Correlation Decomposition-Based Blind Channel Estimation in DS-CDMA Systems With Unknown Wide-Sense Stationary Noise