Abstract | ||
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In this letter, we consider the discrete-time setting and propose a construction of an optical flexible delay line by parallel variable optical delay lines (VODLs) under a very simple packet routing scheme. We show that to exactly emulate an optical flexible delay line with maximum delay d (time slots), where d is a positive integer, it is necessary and sufficient to have at least [(2d+1)/3] VODLs with maximum delay d (time slots) in our proposed architecture. We also show that under a uniform traffic model, the average number of busy VODLs is approximately d+1-(2d+1)(d/(d+1))d, which is quite close to our simulation result. Through simulations, we further show that if we can tolerate a loss probability of, say 10-3, then we only need at most 1.7 times of the average number of busy VODLs, which is much smaller than the worst-case bound [(2d+1)/3]. |
Year | DOI | Venue |
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2010 | 10.1109/LCOMM.2010.08.100464 | IEEE Communications Letters |
Keywords | Field | DocType |
Delay lines,Emulation,Optical buffering,Optical packet switching,Delay effects,Routing,Optical switches,Optical fiber networks,Optical design,Traffic control | Integer,Telecommunications network,Optical switch,Computer science,Computer network,Traffic model,Real-time computing,Packet routing,Emulation,Packet switching,Discrete time and continuous time | Journal |
Volume | Issue | ISSN |
14 | 8 | 1089-7798 |
Citations | PageRank | References |
4 | 0.42 | 1 |
Authors | ||
5 |
Name | Order | Citations | PageRank |
---|---|---|---|
Duan-Shin Lee | 1 | 670 | 71.00 |
Cheng-Shang Chang | 2 | 2392 | 246.97 |
Jay Cheng | 3 | 10 | 1.66 |
Hung-Shih Chueh | 4 | 4 | 1.09 |
Kuan-Ting` Wang | 5 | 4 | 0.42 |