earticle

영어

The availability of smart hand held devices increases rapidly and the need for their interconnection is demand that can not wait. IEEE wireless standards are one of the leading factors of the wireless revolution. All IP networks with centralized management are reality. IMS platforms are providing advanced IP based voice and multimedia services. Technical standards are currently defined that address both the methods of wireless/wired interconnection. TCP remains as the most important and most used transport protocol used for non real time services such as web, email, ftp, which are basis for additional value-added or novel IP-based services. Not much work is done in direction of understanding how can TCP be adapted to handle this scenario for efficiency delivering digital contents. The focus should continue to be on the transport protocol development, its optimization and predetermined behavior in variety of environments. Hence, in this paper we conduct detailed analysis of the impact of the Duplicated ACK and Delayed ACK parameters on the throughput, congestion window change and average packet delay in wireless chain scenario with incorporated loss models under traffic load provided by different TCP versions and IFQ buffer size.