Abstract/Details

Blind channel equalization and estimation for wireless communications


2000 2000

Other formats: Order a copy

Abstract (summary)

This work considers the problem of joint blind channel equalization and co-channel user separation for wireless digital communications. We first show that some blind source separation techniques can be modified and applied to equalize channels and separate users in one step. The most important advantage of the general approach is the robustness to channel length mis-specification and channel ill-conditioning. We then propose the so-called fixed-window constant modulus algorithm with both batch and adaptive implementations. It overcomes the ill-convergence problem encountered by existing adaptive constant modulus algorithms, and thus greatly speeds up the convergence for use in a time-variant mobile environment. In the last part, we propose a blind channel identification approach for a single-user single-channel system where a cyclic prefix is inserted into the transmitted sequence. The proposed method, which is based on second-order statistics, allows the channel to be longer than the cyclic prefix and the block synchronization to be unknown.

Indexing (details)


Subject
Electrical engineering
Classification
0544: Electrical engineering
Identifier / keyword
Applied sciences; Blind channel equalization; Channel equalization; Communications; Wireless
Title
Blind channel equalization and estimation for wireless communications
Author
Zhuang, Xiangyang
Number of pages
183
Publication year
2000
Degree date
2000
School code
0022
Source
DAI-B 61/02, Dissertation Abstracts International
Place of publication
Ann Arbor
Country of publication
United States
ISBN
9780599662728, 0599662727
Advisor
Swindlehurst, A. Lee
University/institution
Brigham Young University
University location
United States -- Utah
Degree
Ph.D.
Source type
Dissertations & Theses
Language
English
Document type
Dissertation/Thesis
Dissertation/thesis number
9962234
ProQuest document ID
304583049
Copyright
Database copyright ProQuest LLC; ProQuest does not claim copyright in the individual underlying works.
Document URL
http://search.proquest.com/docview/304583049
Access the complete full text

You can get the full text of this document if it is part of your institution's ProQuest subscription.

Try one of the following:

  • Connect to ProQuest through your library network and search for the document from there.
  • Request the document from your library.
  • Go to the ProQuest login page and enter a ProQuest or My Research username / password.