[Nets-seminars] Talk next friday

[Richard G. Clegg]

Next week's talk is on 26th October in our new reguar venue of GS/102 
(fewer stairs for you to climb up).  The time is 16:00 as usual.  The 
speaker is Lorenzo Saino.

*Title:*
CCTCP: A Scalable Receiver-driven Congestion Control Protocol for 
Content Centric Networking


*Abstract:**
*Content Centric Networking (CCN) is a recently proposed 
information-centric Internet architecture in which the main network 
abstraction is represented by location-agnostic content identifiers 
instead of node identifiers. In CCN each content object is divided into 
packet-size chunks. When a content object is transferred, routers on the 
path can cache single chunks which they can use to serve subsequent 
requests from other users.

Since content chunks in CCN may be retrieved from a number of different 
nodes/caches, implicit-feedback transport protocols will not be able to 
work efficiently, because it is not possible to set an appropriate 
timeout value based on RTT estimations given that the data source may 
change frequently during a flow.

In order to address this problem, we propose in this paper a scalable, 
implicit-feedback congestion control protocol, capable of coping with 
RTT unpredictability using a novel anticipated interest mechanism to 
predict the location of chunks before they are actually served. Our 
evaluation shows that our protocol outperforms similar receiver-driven 
protocols, in particular when content chunks are scattered across 
network paths due to reduced cache sizes, long-tail content popularity 
distribution or the adoption of specific caching policies.

-- 
Richard G. Clegg,
Dept of Elec. Eng.,
University College London
http://www.richardclegg.org/

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://oakham.cs.ucl.ac.uk/pipermail/nets-seminars/attachments/20121019/86c77e9c/attachment.html