Congestion Control in Wireless Network using TCP Friendly Rate Control (TFRC)

Throughout the years in wireless networks, congestion control has been widely explored. With the point of improving execution and performance in wireless network many techniques and methods have been built up over the years. It is very necessary to solve the issue of congestion control for the quick extension and execution of wireless technology. When a network link or node carries more data than its capacity then network congestion will occurs. In queueing theory and network congestion it reduces the quality of service. Normal impacts of congestion control include packet loss, blocking of new connections and queueing delay. As a result of congestion is to increment in offered load either just to a little increment or even a reduction in system throughput [1].There are many ways to control the congestion in wireless networks. We studied different techniques in this paper and also work through applying TCP friendly rate control.

Performance Enhancement of TCP Friendly Rate Control Protocol over Wired networks

<p>One of the main aims of transport layer protocol is achieving best throughput without any congestion or reduced congestion. With rapid growing application needs and with increasing number of networks in Internet, there is a primary need to design new protocols to transport layer. To transmit multimedia applications, one of the suitable congestion control mechanisms in transport layer is TCP Friendly Rate Control Protocol (TFRC). It controls congestion based on its equation. However, every packet requires an acknowledgement in TFRC. It creates congestion in the network when the transmitted data is very large, which results in reduced throughput. This paper aims to increase the throughput when the transmitted data is large with minimal congestion by reducing the number of acknowledgements in the network. We modified some fixed parameters in the TFRC equation. The results show the increased throughput with minimal congestion.</p>

Performance Enhancement of TCP Friendly Rate Control Protocol over Wired networks

<p>One of the main aims of transport layer protocol is achieving best throughput without any congestion or reduced congestion. With rapid growing application needs and with increasing number of networks in Internet, there is a primary need to design new protocols to transport layer. To transmit multimedia applications, one of the suitable congestion control mechanisms in transport layer is TCP Friendly Rate Control Protocol (TFRC). It controls congestion based on its equation. However, every packet requires an acknowledgement in TFRC. It creates congestion in the network when the transmitted data is very large, which results in reduced throughput. This paper aims to increase the throughput when the transmitted data is large with minimal congestion by reducing the number of acknowledgements in the network. We modified some fixed parameters in the TFRC equation. The results show the increased throughput with minimal congestion.</p>