Title :
Fairness Performance Analysis: HSTCP/DropTail vs. HSTCP/AQM
Author :
Long Chengnian ; Yang Huilong ; Liu Zhixin ; Guan Xinping
Author_Institution :
Inst. of Electr. Eng., Yanshan Univ., Qinhuangdao, China
Abstract :
In this letter we present fairness performance comparison between HSTCP with DropTail router and that with AQM router. With the assumption of synchronous feedback, the RTT unfairness of TCP AIMD congestion avoidance algorithm is obvious. However, the RTT unfairness may be exponential increased in HSTCP with DropTail router. By constructing the duality model of HSTCP with AQM router, we highlight that AQM can improve the fairness performance of HSTCP. Our quantitative result shows that the unfairness of HSTCP/AQM is inverse proportional to its RTT. The insight is validated by NS2 simulation.
Keywords :
telecommunication computing; telecommunication congestion control; telecommunication network routing; transport protocols; AQM router; DropTail router; HSTCP; NS2 simulation; RTT unfairness; TCP AIMD congestion avoidance algorithm; duality model; fairness performance analysis; fairness performance comparison; synchronous feedback; Bandwidth; Communication system control; Convergence; Electronic mail; Feedback; Performance analysis; Scalability; Stability; Telecommunication network reliability; Transport protocols; AQM; HSTCP; RTT unfairness;
Conference_Titel :
Control Conference, 2006. CCC 2006. Chinese
Conference_Location :
Harbin
Print_ISBN :
7-81077-802-1
DOI :
10.1109/CHICC.2006.280860
