Increasing Channel Throughput by Optimizing Delay, Queue Limit and Window Size in TCP/IP Network

With the Internet’s evolution from a best-effort network to a network with guaranteed quality of service (QOS), the transport of integrated IP services over asynchronous transfer mode (ATM) is required, which is being adopted as the backbone infrastructure to support any application. Real time applications such as video and audio have become popular. Transmission of real time video has requirements of minimum delay, loss and maximum bandwidth. In this paper we emphasized on to increase channel throughput of TCP traffic in the integrated environment by optimizing delay, queue size and window size. No modification is done at the IP/ATM interface. By optimizing widow size, queue limit and delay, in TCP the packet loss is reduced thus increasing channel throughput.