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This letter presents a new bit-loading algorithm for discrete multitone systems that converges faster to the same bit allocation as the optimal discrete bit-filling and bit-removal methods. The algorithm exploits the differences between the subchannel gain-to-noise ratios in order to determine an initial bit allocation and then performs a multiple-bits loading procedure for achieving the requested target rate. Numerical results using asymmetric digital subscriber test loops demonstrate the computational efficiency of the proposed algorithm.
Published in:
Communications, IEEE Transactions on
(Volume:53
,
Issue:
5
)
Date of Publication: May 2005
- Page(s):
- 785 - 789
- ISSN :
- 0090-6778
- INSPEC Accession Number:
- 8430899
- Digital Object Identifier :
- 10.1109/TCOMM.2005.847141
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 16 May 2005
- Issue Date :
- May 2005
- Sponsored by :
- IEEE Communications Society
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