Analisis Throughput Varian TCP Pada Model Jaringan WiMAX

Abstract

Abstrak Transmission Control Protocol (TCP) merupakan salah satu protokol yang bekerja pada layer transport pemodelan OSI. Pada awalnya TCP dirancang lebih diperuntukkan untuk jaringan kabel. Namun untuk memenuhi kebutuhan akan perkembangan teknologi jaringan yang sangat cepat berdasarkan kebutuhan penggunaan oleh user, dibutuhkan pengembangan lebih lanjut untuk penggunaan TCP pada perangkat wireless. Salah satu implementasi jaringan berbasis wireless adalah model jaringan Worlwide Interoperability for Microwave Access (WiMAX) yang menawarkan berbagai keutungan, terutama dalam hal kecepatan akses. Pada penelitian ini, digunakan NS-2 untuk melihat throughput pada varian TCP yang diujikan, yaitu TCP-Tahoe, TCP-Reno, TCP-Vegas, dan TCP-SACK diatas model jaringan WiMAX, dengan beberapa skenario pengamatan. Abstract Transmission Control Protocol (TCP) is a protocol that works at the transport layer of the OSI model. TCP was originally designed more destined for a wired network. However, to meet the need for the development of a very fast network technology based on the needs of the use by the user, it needs further development to the use of TCP on wireless devices. One implementation of a wireless network based on Worldwide Interoperability for Microwave Access (WiMAX) network is a model that offers a variety advantage, particularly in terms of access speed. In this case, use NS-2 to see throughput at TCP variants tested, namely TCP-Tahoe, TCP-Reno, TCP-Vegas, and TCP-SACK over WiMAX network model, with few observations scenarios. The first is a look at each of these variants throughput of TCP when only one particular variant of the work in the network. Second observe all variants of TCP throughput at the same time and have the equivalent QoS, but with the possibility of a small congestion based on the capacity of the link is made sufficient. Third observed throughput with multi congestion.