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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Veröffentlicht in:IEEE transactions on communications Jg. 54; H. 8; S. 1374 - 1380
Hauptverfasser: Akujuobi, C.M., Jie Shen, Sadiku, M.N.O.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: New York, NY IEEE 01.08.2006
Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Schlagworte:
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
Online-Zugang:Volltext
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Beschreibung
Zusammenfassung: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 reduce the variance of the data rate among users
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ISSN:0090-6778
1558-0857
DOI:10.1109/TCOMM.2006.878824