A new parallel greedy bit-loading algorithm with fairness for multiple users in a DMT system

This letter first reviews the multiuser bit-loading algorithms for discrete multitone systems. Then an improved algorithm is proposed, which allows several users to get additional bits in parallel. It reduces the number of iterations dramatically. A new fairness coefficient is also introduced to red...

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Vydáno v:	IEEE transactions on communications Ročník 54; číslo 8; s. 1374 - 1380
Hlavní autoři:	Akujuobi, C.M., Jie Shen, Sadiku, M.N.O.
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	New York, NY IEEE 01.08.2006 Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:	Algorithms Applied sciences Coefficients Copper Costs Data communication Digital subscriber lines (DSL) discrete multitone (DMT) DSL Exact sciences and technology Greedy algorithms greedy bit loading Internet telephony IP networks Iterative algorithms OFDM modulation Power cables power spectral density (PSD) Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Transmission and modulation (techniques and equipments) Variance waterfilling algorithm Web and internet services Multiple access Power spectral density Information rate Equity Iterative method Discrete system Multitone system Information transmission discrete multitone (DMT) power spectral density (PSD) water- filling algorithm Digital subscriber line greedy bit loading Greedy algorithm High rate transmission Digital subscriber lines (DSL)
ISSN:	0090-6778, 1558-0857
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