Multipath based robustness transmission evaluation method

Abstract

The invention relates to a multipath based robustness transmission evaluation method for evaluating the structural robustness and performance robustness of the multipath system, which comprises the following steps of a step 1, abstracting an MPTCP multipath transmission topology model, and abstracting an MPTCP multipath transmission system into an unprivileged network with n nodes and m edges; a step 2, analyzing the robustness evaluation index of the MPTCP multipath transmission system; and a step 3, deleting nodes with large sample introduction probability and measuring the robustness of theMPTCP multipath transmission system. According to the multipath based robust transmission evaluation method for evaluating the structural robustness and performance robustness of the multipath systemin the invention, natural connectivity and efficiency function E(G) are used as the evaluation indexes of structural robustness and performance robustness respectively, which can scientifically evaluate the robustness of multipath, can accurately characterize the robustness of complex networks and can well reflect the resistance of the multipath transmission system against decline of community caused by behaviors such as random failures of network links and network attacks in the data transmission process.

Description

technical field [0001] The invention relates to the technical field of communication data transmission, and specifically relates to a multipath-based robust transmission evaluation method. Background technique [0002] With the large-scale application of various wireless access technologies (such as Bluetooth, Wi-Fi, GPRS, 4G, etc.), more and more terminal devices will be equipped with a variety of network interfaces of different standards (that is, multi-homing) and have access Ability to access multiple networks. How to organically integrate multiple wireless access technologies and rationally utilize heterogeneous wireless network resources, so as to improve the service quality of application data transmission, has become a research hotspot in domestic and foreign academic circles. In recent years, the Internet Engineering Task Force (IETF) has successively proposed Stream Control Transmission Protocol (Stream Control Transmission Protocol, SCTP) and Multipath TCP Protoc...

AI Technical Summary

Problems solved by technology

The streaming media server and the user terminal use the MPTCP transmission protocol to communicate, and use m paths to transmit data; assuming that in the process of concurrent data transmission, the path is attacked by the network or the signal is randomly disconnected due to the movement of the terminal, which may lead to path transmission Failure and overall connectivity degradation of the multipath transmission system (i.e. structural robustness degradation)

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