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Iterative multi-user power allocation: Performance evaluation & modification

Bagheri, H ; Sharif University of Technology | 2004

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  1. Type of Document: Article
  2. Publisher: 2004
  3. Abstract:
  4. Crosstalk is the major limiting factor in DSL systems in terms of bit-rate or service coverage. Multiuser power control algorithms can be used to combat crosstalk degrading effects. The best ever known distributed power control solution is Iterative Water-filling (IWF). In this paper the performance of IWF in an ADSL system is considered in terms of offered rate-region and convergence speed. Then two novel modifications are proposed to accelerate convergence (usually 100-400%) without any performance loss. Therefore it suits better in practical applications, since each iteration needs re-initialization of the modem. © 2004IEEE
  5. Keywords:
  6. Crosstalk ; Acceleration ; Transmitters ; Telephony ; Iterative algorithms ; Modems ; Degradation ; Power control ; Radio spectrum management ; DSL
  7. Source: IEEE TENCON 2004 - 2004 IEEE Region 10 Conference: Analog and Digital Techniques in Electrical Engineering, Chiang Mai, 21 November 2004 through 24 November 2004 ; Volume C , 2004 , Pages C216-C219
  8. URL: https://ieeexplore.ieee.org/document/1414746