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Initially, the Internet transport protocol TCP has been designed to provide a "best effort" service: it is meant to share the network resources with other users and applications. However, there is nowadays also a growing demand for transmitting big amounts of data in the background, namely background transport that uses spare capacity, but with minimal effect on other traffic. For instance,...
Fairness amongst the competing flows at the transport layer has always been an important topic, however, the current definition based on the TCP-compatible view is not always suitable. With the increasing deployment of multipath transport protocols such as Multipath TCP (MPTCP) and the Concurrent Multipath Transfer extension of SCTP (CMT-SCTP), the term “fair” can have various interpretations. In...
The Internet is based on best effort communication, i.e. It tries to deliver packets but does not provide any guarantees. A transport protocol can make use of this best effort service to provide a suitable service to its applications. Also, its congestion control is responsible for a fair distribution of the resources within the Internet. However, background data transfer applications (like file sharing...
The market penetration of access devices with multiple network interfaces has increased dramatically over the last few years. As a consequence, there is a strong interest to use all of the available interfaces concurrently to improve data throughput. Corresponding extensions of established Transport protocols are receiving considerable attention within research and standardization. Currently two approaches...
Today, a steadily growing number of devices contains multiple network interfaces. For example, nearly all smartphones are equipped with at least W-LAN as well as 3G/4G interfaces. In consequence, there is a rising demand for so-called multi-path transfer, which utilizes all of these interfaces simultaneously in order to maximize the payload throughput of applications. Currently, this so-called multi-path...
The classic layered OSI reference model has reached its limits for the Internet of today. In this paper, we propose a clean-slate conceptual design of a new architecture as a contribution to the ongoing discussion on the Future Internet. We address the shortcomings of the layered model by redesigning the classical model. Our approach differs from the concepts found in prior work, which focus on special...
The need for service resilience is leading to a steadily growing number of multi-homed Internet sites. In consequence, this results in a growing demand for utilising multiple Internet accesses simultaneously, in order to improve application payload throughput during normal operation. Multi-path Transport Layer protocol extensions - like Multi-Path TCP (MPTCP) for TCP and Concurrent Multipath Transfer...
Due to the resilience requirements of a steadily growing number of critical Internet services (like emergency call handling or e-commerce transactions), the deployment of multi-homed network sites becomes more and more common. Having multiple Internet access paths, it seems straightforward to utilise them simultaneously in order to improve payload throughput by so-called Concurrent Multipath Transfer...
Multi-homed Internet sites become more and more widespread, due to the rising dispersal of inexpensive Internet access technologies combined with the growing deployment of resilience-critical applications. Concurrent Multipath Transfer (CMT) denotes the Transport Layer approach to utilise multiple network paths simultaneously, in order to improve application payload throughput. Currently, CMT is a...
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