earticle

영어

Transport layer protocol is used by the majority of the applications in wire and wireless networks. In addition, there are a lot of challenges in testing and applying this protocol in highly dynamic topological Vehicular Ad Hoc Networks (VANET). Quality of Service and reliability of the Transmission Control Protocol in vehicular wireless network is not assured due to frequent link failure, short duration of session, packet drop due to congestion, multipath propagation delay etc. Performances of the Transmission Control Protocol (TCP) are highly depended on congestion control algorithms that limit the amount of data to be transmitted based on the estimated network capacity and receiver’s TCP window. Goal of this paper is to analyze and evaluate TCP congestion control algorithms in VANET environment and suggest the most appropriate of them. Throughput and packet delivery ratio is examined changing the C2C-CA message intervals in order to find out the best solution for VANET environment. Important conclusions are obtained that could be of great use for professionals that work in this area.