By Pötsch
ISBN-10: 3658148144
ISBN-13: 9783658148140
ISBN-10: 3658148152
ISBN-13: 9783658148157
Thomas Pötsch investigates the channel houses of mobile networks and analyzes the results that reason inefficient functionality of legacy congestion regulate protocols, akin to TCP and its editions, on mobile networks. encouraged through the findings, a unique delay-based congestion keep watch over protocol known as Verus is proposed and evaluated throughout various community eventualities. moreover, the writer develops a stochastic two-dimensional discrete-time Markov modeling method that dramatically simplifies the knowledge of delay-based congestion keep an eye on protocols.
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Extra resources for Future Mobile Transport Protocols: Adaptive Congestion Control for Unpredictable Cellular Networks
Sample text
4 Model-Driven Congestion Protocols Remy [WB13] is a computer-generated congestion control algorithm that generates congestion control algorithms offline. Offline in that sense means that the protocol takes specific parameter as input and generates a distributed congestion control algorithm that run on endpoints. Its goal is to find the best congestion control algorithm that solves the fundamental problem of when an endpoint in a multi-user network should transmit a packet and when not. In this work, a machine can be trained offline to learn congestion control schemes that suits a specific “design range” of operation.
This has been accomplished by a variety of measurements on two commercial cellular networks. The conducted measurements provide insights into the channel properties under different aspects such as the impact of user mobility and competing traffic. Legacy transport protocols (also known as congestion control protocols) like the Transmission Control Protocol (TCP) and its variants have been designed for static and fixed networks and perform poorly over cellular networks. Although these protocols have seen major improvements during the past years, they still suffer from the high channel variability and the stochastic packet losses that are not linked to congestions in the network.
The main reasons for packet losses in cellular networks are the harsh and rapidly changing channel conditions and outages due to handovers when a mobile user switches from one base station to another. Furthermore, legacy transport protocols usually assume congestion in the network when they detect a packet loss and adjust their sending rate accordingly. This, however, does not hold for cellular networks where a packet loss is not linked to congestion. Consequently, several efforts have recently been made to improve the performance of data transmission on these links and alternative transport protocols were proposed over the past years.
Future Mobile Transport Protocols: Adaptive Congestion Control for Unpredictable Cellular Networks by Pötsch
by Christopher
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