An improved preferences guideline based on stability of FAST TCP

作者：Chen Xiaolong^*; Zhang Yun; Liu Zhi

来源：Journal of Huazhong University of Science and Technology (Natural Science Edition), 2010, 38(12): 81-84.

• Characteristic roots
• Congestion Control
• Controller gain
• FAST TCP
• Filter elements
• Guideline
• Half-planes
• NS-2 simulations
• Preferences
• Transcendental equations

Aiming at the weakness of FAST TCP preferences guideline, a FAST TCP network congestion control time-delay model, consisting of window update period parameter and exponent filter element, is presented in this paper. By analyzing the conditions for characteristic roots of its transcendental equation, which lie in the left-half plane, an improved preference guideline is proposed to ensure the stability of the FAST TCP, which is based on controller gain parameter, window update period, and the network relevant parameters. The theoretical computation and NS2 simulation results demonstrate that the proposed guideline possesses more accurate selecting range and more extensive application as compared to other relevant guidelines.

• 出版日期2010