Tehnika upravljanja zagušenjem TCP-BIC

undergraduate thesis

• Title (english): Congestion control technique TCP-BIC
• Author: Leo Došen
• Mentor: Željko Ilić (mentor)
• Committee member: Željko Ilić (predsjednik povjerenstva)
• Committee member: Jasna Janković (član povjerenstva)
• Committee member: Kristijan Poje (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2021-09-06, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

TCP je pouzdani transportni protokol. Nalazi se ispod IP protokola, te je jedan od najkorištenijih transportnih protokola u Internetu. TCP pruža niz usluga, jedna od kojih su tehnike upravljanja zagušenjem. Uz osnovne tehnike upravljanja zagušenjem, razvijeno je mnoštvo inačica protokola TCP koje implementiraju i nadograđuju te tehnike. Jedna od tih inačica je TCP-BIC. U NS 2 su provedene simulacije mreža u kojima je simulirano zagušenje u mreži, uz korištenja protokola TCP-BIC te mehanizmima koje pruža za upravljanje zagušenjem. Rezultati tih simulacija su prikazani kroz grafove cwnd i propusnosti, te postotkom uspješno poslanih paketa. Iako TCP-BIC zadovoljava mnoge uvjete zbog kojih je implementiran, sadrži određene nedostatke, zbog kojih je napravljena nova inačica: TCP-CUBIC, koja se zasniva na protokolu TCP-BIC.

Abstract (english)

TCP is a reliable transport protocol. It is located below the IP protocol, and is one of the most used protocols of the Internet. TCP provides a range of services, one of which is congestion control. In addition to basic congestion control algorithms, a variety of TCP protocol version have been developed that implement and upgrade these algorithms. One of these versions is TCP-BIC. In NS 2, network simulations were performed in which network congestion was simulated, using TCP-BIC protocol and algorithms it provides for congestion control. The results of these simulations are presented through cwnd and throughput graphs, and the percentage of successfully sent packets. Although TCP-BIC meets many of the conditions for which it is implemented, it contains certain shortcomings, which led to the creation of a new version: TCP-CUBIC, which is based on the TCP-BIC protocol.

• Keywords: TCP; TCP-BIC; kontrola zagušenja; prozor zagušenja; NS 2; porast binarnim traženjem; aditivni porast; maksimalno ispitivanje; brza konvergencija
• Keywords (english): TCP; TCP-BIC; congestion control; congestion window; NS 2; binary search increase; additive increase; max probing; fast convergence
• Language: croatian
• URN:NBN: urn:nbn:hr:168:012208
• Study programme: Title: Computing; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-01-14 08:41:44