Minimizing the Cost in the Communication between Different Node by Using Combination of Droptail, TCP as Well as Congestion Window Technique

Rajdev Tiwari, Prerna Trivedi · International Journal of Scientific Research in Science Engineering and Technology · 2016

NS2 is a discrete event simulator for networking research, which works at the packet level. Here, we will be using ns2 to simulate traffic congestion of TCP and UDP packets inside a network. NS2 is popularly used in the simulation of routing and multicast protocols and is heavily used in ad-hoc networking research. ns2 supports network protocols (TCP, UDP, HTTP, Routing algorithms, MAC) etc. for offering simulation results for wired and wireless networks. When using TCP to transfer data the two most important factors are the TCP window size and the round trip latency. This paper deals the effect that the size of the flow control window has on the throughput of a TCP connection by using simulation parameters like-packet delay (sec), bandwidth, file-size (bytes) and to implement network fed with TCP traffic and background traffic. The objective of this paper is to observe the performance of TCP. Distributed Using simulations, this paper compares a number of techniques some novel and some variations on known approaches for building random graphs and doing random node selection over those graphs. Our focus is on practical criteria that can lead to a genuinely deployable toolkit that supports a wide range of applications. These criteria include simplicity of operation, support for node heterogeneity, quality (uniformity) of random selection, efficiency and scalability, load balance, and robustness. We show that all these criteria can be met, and that while no approach is superior against all criteria, our novel approach broadly stands out as the best approach. Networks are essential to the function of a modern society and the consequence of damages to a network can be large. Assessing performance of a damaged network is an important step in network recovery and network design. Connectivity, distance between nodes, and alternative routes are some of the key indicators of network

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