Uncooperative Flow Control - PowerPoint PPT Presentation

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Uncooperative Flow Control

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Title: Lp Stability and Delay Robustness of Network Flow Control Author: Xiao Zhu Last modified by: Name Created Date: 3/10/2003 1:00:39 AM Document presentation format – PowerPoint PPT presentation

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Title: Uncooperative Flow Control


1
Uncooperative Flow Control
  • Xingzhe Fan
  • M. Arcak, J. T. Wen, K. Candrayana and S.
    Kalyanaraman
  • Electrical, Computer, and Systems Engineering
    Department
  • Rensselaer Polytechnic Institute

2
Outline
  • Network flow control
  • Detection and rectification of uncooperative
    users
  • Primal algorithm
  • Dual algorithm

3
Objective Maximize utilization subject to link
capacity constraints
Network Flow Model (Kelly et al., 1998)
4
Uncooperative flow control (detecting and
rectifying cheating users)
5
Ideal uncooperative flow control for primal
algorithm
6
Uncooperative flow control for primal algorithm
7
Uncooperative flow control for primal algorithm
8
Ideal uncooperative flow control for dual
algorithm
9
Uncooperative flow control for dual algorithm
10
Uncooperative flow control for dual algorithm
11
NS2 simulation
12
NS2 simulations
  • Caveat Too small or too large ? may deteriorate
    the performance
  • Small ? disallowed to achieve desired
    two-time-scale behavior
  • Arbitrarily large ? leads to saturation of
    dropping or marking
  • ? can be determined experimentally
  • or by automatic tuning.
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