title: Enhancing the Flexibility of TCP in Heterogeneous Network.
abstract: Due to a set of constant initial values, the performance of conventional TCP drops significantly encountering heterogeneous network, showing low throughput and unfairness. This paper firstly demonstrates the chaotic character of TCP congestion control in heterogeneous network, especially the sensitivity to initial value. Inspired by merit of nature-inspired algorithm, a novel structure of TCP congestion control (IPPM, Internet Prey-Predator Model) is proposed. Parameters such as available link capacity(C), congestion window (W) and queue length (Q) are collected by IPPM, which calculates the max value of C according to the interacting relationship existing in C, W and Q, and IPPM initiates the TCP ssthresh with the calculated value. Plenty of simulation results show that the modified TCP can effectively avoid network congestion and packet loss. Besides, it holds high resource utilization, convergence speeds, fairness and stability.
authors.affiliation: Network Information Center of Henan University of Science and Technology, Luo Yang, 471003, China.
authors.forename: Wang
authors.initials: W
authors.lastname: Hui
authors.affiliation: Network Information Center of Henan University of Science and Technology, Luo Yang, 471003, China.
authors.forename: Li
authors.identifier: http://orcid.org/0000-0003-1221-4295
authors.initials: L
authors.lastname: Peiyu
authors.affiliation: Network Information Center of Henan University of Science and Technology, Luo Yang, 471003, China.
authors.forename: Fan
authors.initials: F
authors.lastname: Zhihui
authors.affiliation: Network Information Center of Henan University of Science and Technology, Luo Yang, 471003, China.
authors.forename: Li
authors.initials: L
authors.lastname: Zheqing
authors.affiliation: Information Engineering College of Henan University of Science and Technology, Luo Yang, 471003, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Xuhui