Paper Info
Title
Power and Cost Reduction by Hybrid Optical Packet Switching with Shared Memory Buffering
Abstract
The power consumption of a network becomes a critical performance metric for a petabit-per-second scale Internet, in addition to the system cost. We investigate the power and cost efficiency of all-optical and electrical technologies to understand the design principle for petabit-scale hybrid optical switch nodes for optical packet and burst switching. In order to achieve an efficient hybrid design, we point out the interesting observation that the use of long packets switched by passive-medium photonic switches can substantially reduce power consumption and system cost. For contention resolution, shared electronic memory buffers are more effective and power efficient than fiber delay line buffers. An empirical optimization exhibits that a traditional all-optical solution is not the best choice for power and cost efficiency. Using passive-medium photonic switches with electronic memory buffers, we can introduce a substantial savings in power and cost, approximately half of those of commercially available optical cross-connect systems, with a packet loss rate as low as 10(-6).
Year
DOI
Venue
2011
10.1109/MCOM.2011.5762805
IEEE COMMUNICATIONS MAGAZINE
Keywords
Field
DocType
photonics,packet switching,fiber optic,optical switches,optical burst switching,power efficiency,optical sensor,fiber optics,cost efficiency,optical cross connect,shared memory,optical switch,internet
Electrical efficiency,Optical burst switching,Optical switch,Shared memory,Computer science,Network packet,Computer network,Burst switching,Packet switching,Cost efficiency
Journal
Volume
Issue
ISSN
49
5
0163-6804
Citations 
PageRank 
References 
12
0.66
4
Authors
6
Name
Order
Citations
PageRank
June-Koo Kevin Rhee1221.93
Chan-Kyun Lee2131.39
Jihwan Kim319735.10
Yong-Hyub Won4131.14
Jin Seek Choi5336.17
Jungyul Choi610211.02