Highly Energy Efficient Layer-3 Network Architecture Based on Service Cloud and Optical Aggregation Network

Hidetoshi TAKESHITA  Daisuke ISHII  Satoru OKAMOTO  Eiji OKI  Naoaki YAMANAKA  

Publication
IEICE TRANSACTIONS on Communications   Vol.E94-B   No.4   pp.894-903
Publication Date: 2011/04/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E94.B.894
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Photonic Network Technologies in Terabit Network Era)
Category: 
Keyword: 
power consumption,  service cloud,  optical aggregation,  cloud router,  future network,  

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Summary: 
The Internet is an extremely convenient network and has become one of the key infrastructures for daily life. However, it suffers from three serious problems; its structure does not suit traffic centralization, its power consumption is rapidly increasing, and its round-trip time (RTT) and delay jitter are large. This paper proposes an extremely energy efficient layer-3 network architecture for the future Internet. It combines the Service Cloud with the Cloud Router and application servers, with the Optical Aggregation Network realized by optical circuit switches, wavelength-converters, and wavelength-multiplexers/demultiplexers. User IP packets are aggregated and transferred through the Optical Aggregation Network to Cloud transparently. The proposed network scheme realizes a network structure well suited to traffic centralization, reduces the power consumption to 1/20-1/30 compared to the existing Internet, reduces the RTT and delay jitter due to its simplicity, and offers easy migration from the existing Internet.