Performance and adaptability of the transport protocol are among the most critical parts of the TCP/IP protocol stack since it is directly related to the user interaction and application experience. In this paper we analyze specific problems of reliable transport protocol performance caused by rapidly changing topology in MANETs in addition to classical transport layer challenges. Then we propo...

Induced traffic: Ad hoc wireless networks use multi-hop radio relaying, and a link-level transmission affects neighbor nodes of both sender and receiver of the link. This induced traffic affects throughput of the transport layer protocol. Induced throughput unfairness: Some MAC protocols, like IEEE 802.11 DCF, may add throughput unfairness to the transport layer. A transport layer protocol need...

ion on top of the IP network layer. We give some examples that play a role in the context of real-time communication. Transport Layer Protocols Transport layer protocols organize the multiplexing of data streams from different applications into an IP packet stream and enable a remote machine to assign the received data to the corresponding processes. The transport layer is the lowest abstractio...

Optimizing sensor networks involves addressing a wide range of issues steaming from limited energy reserves, computation power, communication capabilities, and self-managing sensor nodes. The ns-2 simulation environment is a flexible tool for network engineers to investigate how various protocols perform with different configurations and topologies. This paper describes how we extended the ns-2...

The rapid growth of today's emerging high-speed networks has made currently implemented transport layer flow control techniques inadequate for the performance levels required now and in the future. Throughput at the upper layers is throttled due to architectural designs tailored to "last-generation" technologies. We define and analyze a transport layer flow control algorithm featuring hybrid op...

This document describes the Heartbeat Extension for the Transport Layer Security (TLS) and Datagram Transport Layer Security (DTLS) protocols. The Heartbeat Extension provides a new protocol for TLS/DTLS allowing the usage of keep-alive functionality without performing a renegotiation and a basis for path MTU (PMTU) discovery for DTLS. Information about the current status of this document, any ...

A Wireless Sensor Network is made up of self organizing, light weight sensor nodes whose main task is to cooperatively examine environmental conditions like vibration, temperature, pressure etc. and collect the information from the environment and send that information to the sink node. Transport layer protocols offer reliable data delivery as well as congestion control in wireless sensor netwo...