Implementation of TCP Congestion Control mechanism for Wireless Networks using TCP Reserved Field and Signal to Noise Ratio (SNR)
D. Hema Latha, Thota Venkat Narayana Rao, D. Rama Krishna Reddy · Global Society of Scientific Research and Researchers - International Journal of Computer · 2014
TCP is the most popular and widely used network transmission protocol.All most 90% of the Internet connections make use of TCP for communication.TCP is reliable for wired networks and it considers all packet timeouts in wired networks as due to network congestion and not because of bit errors.However, TCP suffers from performance degradation over error-prone wireless links, as it has no technique to distinguish error deficits from congestion deficits, with networking becoming more divergent, with wired and wireless topologies.It considers all packet deficits are due to congestion and subsequently reduces the packet burst transmission, at the same time decreasing the network throughput.In this paper a new TCP congestion control mechanism is proposed that is suitable and applicable for wireless and also for wired networks and is capable of distinguishing congestion deficits from error deficits.The proposed technique uses the reserved field of the TCP header to indicate whether the connection established is over a wired or a wireless link.----