Parameter condition for global asymptotic stability of FAST TCP in the presence of cross traffics

  • Authors:

  • Joon-Young Choi;Sung-Yong Kim;Jong-Wook Kim

  • Affiliations:

  • Department of Electronic and Electrical Engineering, Pusan National University, Busan, Korea;Department of Electronic and Electrical Engineering, Pusan National University, Busan, Korea;Department of Electronics Engineering, Dong-A University, Busan, Korea

  • Venue:
  • IEEE Communications Letters
  • Year:
  • 2010

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Abstract

We consider the global asymptotic stability of FAST TCP in the presence of cross traffics as well as network feedback delays. Based on a continuous-time dynamic model that describes the FAST TCP source and the queuing delay dynamics with cross traffics, we achieve a sufficient condition for the global asymptotic stability. The sufficient condition is expressed in terms of the tuning parameter α independently of the update gain γ. The simulation results demonstrate the validity of the sufficient condition for the global asymptotic stability of FAST TCP.