• Praveen Budhwar

This paper describes the concept of wireless sensor networks which is an emerging class of networks that can be used to monitor real time situations. Existing transport layer protocols such as TCP and UDP are inappropriate for wireless sensor networks. So, there is a need of special protocols to provide reliability and congestion control for transport layer of wireless sensor networks. In this paper, we first describe the basics of wireless sensor networks. Then we elaborate the aspects of congestion control and reliability. Then we present various transport layer protocols which are specifically designed for sensor networks to provide both congestion control and reliability. Then a comparison of these protocols is given on the basis of various parameters like congestion detection, congestion notification, congestion avoidance, reliability level, reliability direction, loss recovery, loss notification, energy efficiency and simulation environment. At the end, we address certain open research issues of transport layer protocols in wireless sensor networks.

Congestion Control, Energy Efficiency, Reliability, Transport Layer, Wireless Sensor Networks.

"A Survey of Transport Layer Protocols for Wireless Sensor Networks", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.2, Issue 4, page no.985-991, April-2015, Available :http://www.jetir.org/papers/JETIR1504026.pdf

"A Survey of Transport Layer Protocols for Wireless Sensor Networks", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.2, Issue 4, page no. pp985-991, April-2015, Available at : http://www.jetir.org/papers/JETIR1504026.pdf