A Survey of Transport Layer Protocols for Wireless Sensor Networks

Zafar, Saima
November 2011
International Journal of Computer Applications;Nov2011, Vol. 33, p44
Academic Journal
The reliability of data transfer is vital for commercial and enterprise applications of Wireless Sensor Networks (WSN). Likewise, mission-oriented and critical military applications of these networks demand dependable and timely data transport. This reliability is required for in-bound data, from Internet node to sensor nodes which comprises of code updates, as well as for out-bound data from sensor nodes to base station or gateway which comprises of important data reported by sensor nodes. Although TCP is a time-tested transport layer protocol of Internet that ensures reliability, flow control and congestion control, being a heavy protocol, it is considered unsuitable for resource constrained sensor networks. As a result new transport layer protocols have been developed for these networks. Nonetheless efforts are directed towards making TCP suitable for sensor networks. This paper presents a survey of transport layer protocols and approaches to achieve reliable data communication in general wired-cum-wireless networks and particularly in WSN.


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