This paper looks at the phenomenon of long-range dependence. It shows that certain long-range dependent models give answers which contain infinities and also that this behaviour will not be detected by a naive modelling approach. The work is an extension of an earlier published PMECT paper.
This paper looks at ways of predicting the TCP throughput of a connection.
The assumption is that some information is available about the connection.
A comparison is made between “formula based” (FB) prediction, that is using
round-trip time and loss versus time series analysis prediction (referred to
here as history based (HB)), that is
using previous measurements on the same connection. Both approaches
require some measurements from the connection already.
This paper deals with reducing costs for cloud computing users. Cloud customers
use “Traffic Redundancy Elimination” (TRE) to reduce bandwidth costs.
Redundant data chunks are detected and removed – cloud providers will
not implement middleboxes for this as they have no incentive.
The paper gives a TRE solution which does not require a server
to maintain client status. The system is known as PACK “Predictive
ACKnowledgements” which is receiver driven.
Hitesh Ballani, Paolo Costa, Thomas Karagiannis and Ant Rowstron
This paper looks at the issue of reducing variability in performance
in data centre networks. Variable network performance can lead
to unreliable application performance in networked applications –
this can be a particular problem for cloud apps. Virtual networks
are proposed as a solution to isolate the “tenant” performance from
the physical network infrastructure. The system presented is known
as Oktopus. The system provides a tradeoff between guarantees to tenants,
costs to tenants and profits to providers by mapping a virtual network
to the physical network.
Networking 2011, Lecture Notes in Computer Science (6640)
This paper creates a simple mathematical model based on Markov chains which can model (with some simple assumptions) the type of cacheing trees seen in content centric networking. The model is tested with some simulation results.