ABSTRAKSI: Dalam proses pentransmisian dikenal beberapa buah algoritma, salah satunya yaitu TCP congestion control algorithm. Algoritma ini yang mengatur proses pengiriman data keseluruhan dari sender ke receiver. Ada beberapa varian dari TCP congestion control algorithm ini, seperti TCP Westwood+, TCP New Reno, TCP Veno. Dari berbagai varian tersebut memberikan hasil yang terbaik selama proses pentransmisian data berlangsung, bergantung pada konTCP congestion control didasarkan pada jumlah paket loss yang digunakan untuk mengurangi ukuran congestion windows yang terjadi. Pada umumnya, TCP congestion control diterapkan pada jaringan wired. Pada tugas akhir ini, akan diterapkan algoritma TCP congestion windows pada jaringan mobile WiMAX. Dalam tugas akhir ini akan diuji efek dari handover terhadap performansi TCP Congestion Control. Varian varian dari TCP congestion control yang digunakan yaitu TCP Westwood+, TCP Veno, TCP New Reno.disi jaringan yang dilewati.
Dari hasil percobaan, didapatkan bahwa TCP Veno menghasilkan nilai throughput yang lebih besar jika dibandingkan dengan TCP NewReno dan TCP Westwood+. Nilai perbedaan throughput TCP Veno dengan TCP Newreno dan TCP Westwood+ rata ratanya adalah 38.567 kbps dan 39.317 kbps.
Tugas akhir ini dapat memberikan gambaran mengenai pemilihan varian TCP Congestion Control yang akan diterapkan di jaringan wireless, agar didapatkan performansi maksimal yang mendukung mobilitas user.
Kata kunci : Mobile WiMax, TCP Veno, TCP NewReno, TCP Westwood+
Kata Kunci : Mobile WiMax, TCP Veno, TCP NewReno, TCP Westwood+ABSTRACT: In the process known transmission of several algorithms, one of the TCP congestion control algorithm. This algorithm which regulates the entire data transmission process from sender to receiver. There are several variants of TCP congestion control algorithms, such as TCP Westwood +, TCP New Reno, TCP Veno. From the many variants that provide the best results during the process of data pentransmisian place, depending on network conditions are skipped.
TCP congestion control is based on the number of packet loss is used to reduce the size of congestion windows that happen. In general, TCP congestion control is applied to the wired network. In this final task, will apply the TCP congestion window algorithm in wireless networks, namely mobile WiMAX network. Specialization in the final task is to influence the process of handover to the work performance TCP congestion control algorithm that t occurs in mobile WiMAX
From the results of the experiment, it was found that TCP Veno throughput value greater than TCP NewReno and TCP Westwood +. Value of TCP Veno throughput difference with Newreno TCP and TCP Westwood + average rating is 38,567 kbps and 39,317 kbps.
This final task provides a description of the selection variant of TCP Congestion Control to be implemented in wireless networks, in order to get the maximum performance that supports the user mobility.
Key word : Mobile WiMax, TCP Veno, TCP NewReno, TCP Westwood+
Keyword: Key word : Mobile WiMax, TCP Veno, TCP NewReno, TCP Westwood+