Is Caching a Key to Energy Reduction of NDN Networks?

Junji TAKEMASA  Yuki KOIZUMI  Toru HASEGAWA  

Publication
IEICE TRANSACTIONS on Communications   Vol.E99-B   No.12   pp.2489-2497
Publication Date: 2016/12/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.2016CNP0001
Type of Manuscript: Special Section PAPER (Special Section on Information Centric Networking: Paradigms, Technologies, and Applications)
Category: 
Keyword: 
ICN (Information Centric Networking),  NDN (Named Data Networking),  caching,  energy efficiency,  

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Summary: 
Energy efficiency is an important requirement to forth-coming NDN (Named Data Networking) networks and caching inherent to NDN is a main driver of energy reduction in such networks. This paper addresses the research question “Does caching really reduce the energy consumption of the entire network?”. To answer the question, we precisely estimate how caching reduces energy consumption of forth-coming commercial NDN networks by carefully considering configurations of NDN routers. This estimation reveals that energy reduction due to caching depends on energy-proportionality of NDN routers.