This paper looks at a mechanism related to Explicit Congestion Notification. It uses a single bit in the IP header to communicate the congestion at each hop in the path. Statistical estimators are used to work out the accuracy of the congestion estimation.
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.
Ruben Cuevans -- Univ Carlos III de Madrid, Nikolaos Laoutaris, Xiaoyuan Yang, Georgos Siganos and Pablo Rodriguez
This paper looks at P2P traffic over bittorrent from a large database
of torrents. The paper considers the effects of localising bittorrent
traffic on performance and ISP cost saving.
Data: The data set is one of the impressive things about this paper.
100K torrents of which 40K active. Demographics from 3.9M
concurrent users and 21M total users over a day from 11K ISPs.
Speed test results from ookla and iplane.
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.
Ingmar Poese, Benjamin Frank, Bernhard Ager, Georgios Smaragdakis and Anja Feldmann
This paper looks at CDN networks and, in particular, suggests
Provider-aided Distance Information System (PaDIS), which is a mechanism
to rank client-host pairs based upon information such as RTT,
bandwidth or number of hops. Headline figure, 70% of http traffic
from a major european ISP can be accessed via multiple different
locations. “Hyper giants” are defined as the large content providers
such as google, yahoo and CDN providers which effectively build
their own network and have content in multiple places.
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.