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Proceedings Paper

New practical power and bit allocation algorithm in DMT systems
Author(s): Junling Hu; Wenjiang Liu
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Paper Abstract

One of the advantages for Discrete Multitone(DMT) modulation systems compared to single carrier systems is that the power and bits may be allocated to each subchannel in some way for optimal performance. Some algorithms proposed before have high complexity and use flat power distribution which is not the optimal distribution. Based on the detail analysis of Water-Pouring theorem, a new practical algorithm is presented which match approximately matches the Water-Pouring distribution and can also the discrete bit loading problem. The simulation results show this algorithm has better performance and lower complexity.

Paper Details

Date Published: 16 October 2001
PDF: 6 pages
Proc. SPIE 4583, Metro and Access Networks, (16 October 2001); doi: 10.1117/12.445138
Show Author Affiliations
Junling Hu, Xi'an Jiaotong Univ. (China)
Wenjiang Liu, Xi'an Jiaotong Univ. (China)


Published in SPIE Proceedings Vol. 4583:
Metro and Access Networks
Wanyi Gu; Jianhui Zhou; Jin-Yi Pan, Editor(s)

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