A producer-centric caching strategy for named data networking
Author
Açacak, Hüseyin
Advisor
Körpeoğlu, İbrahim
Date
2018-09Publisher
Bilkent University
Language
English
Type
ThesisItem Usage Stats
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Abstract
With growing number of users and content on Internet, the existing Internet
architecture needs to evolve to be more efficient to find and carry content, and
Named Data Networking (NDN) is a new Internet architecture aiming to achieve
this. Named Data Networking focuses on data directly instead of considering
servers and their locations to retrieve data. It adopts the paradigm of requesting
and retrieving data with name instead of delivering a packet to a specific destination
address. In NDN, caching of data in intermediate network nodes can
help moving data closer to the consumers and in this way can be very e ective
in reducing application response time and network bandwidth consumption. For
this, proper cache placement and replacement strategies are needed. In this thesis,
we propose a producer-centric in-network caching strategy, called PCDC, to
efficiently and e ectively cache data in the intermediate nodes of a named data
network. In our scheme, intermediate nodes that are at the intersections of multiple
consumer paths are selected as caching points to cache requested data. We
propose the necessary mechanisms and algorithms to select such caching points,
considering the practical constrains of NDN protocols. We simulated our scheme
in ndnSIM/ns3 and did extensive simulation experiments to evaluate its performance.
The simulation results show that our scheme is feasible and practical to
apply and is efficient in terms of increasing packet diversity and average hit-ratio,
and decreasing application response time and network bandwidth consumption.