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January 24, 2010 | History

Multiuser detection and spectrum balancing for digital subscriber lines 1 edition

Multiuser detection and spectrum balancing for digital subscriber line ...
Vincent Man Kin Chan

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Multiuser detection and spectrum balancing for digital subscriber lines.

Published 2005 .
Written in English.

About the Book

This thesis proposes power control algorithms for maximizing the transmission rates in digital subscriber line systems where crosstalk is the major performance-limiting factor. First, a joint multiuser detection and optimal spectrum balancing algorithm is proposed for the case when the DMT blocks are perfectly aligned. Assuming that the set of tones subject to multiuser detection can be arbitrarily selected, this algorithm uses the idea of dual decomposition to jointly determine the optimal set of tones and the optimal transmit power allocation scheme. Second, we investigate the effect of DMT block misalignment. Inter-carrier interference is induced as a result. Heuristic algorithms are proposed to maximize transmission rates in this case. The main idea of the algorithms is to perform a neighborhood gradient search on the solution derived from an existing spectrum balancing algorithm. To reduce the algorithmic complexity, an approximation method using the first-order power series expansion is suggested.

Edition Notes

Source: Masters Abstracts International, Volume: 44-02, page: 0986.

Thesis (M.A.Sc.)--University of Toronto, 2005.

Electronic version licensed for access by U. of T. users.

GERSTEIN MICROTEXT copy on microfiche (1 microfiche).

The Physical Object

77 leaves.
Number of pages

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History Created December 11, 2009 · 2 revisions Download catalog record: RDF / JSON

January 24, 2010 Edited by WorkBot add more information to works
December 11, 2009 Created by WorkBot add works page