Name
Abstract | ||
|---|---|---|
This paper describes a rate flexible network transport solution to achieve sub-wavelength circuit provisioning between edge node pairs. Sub-wavelength circuits are obtained by concatenating spectrally efficient digital subcarrier channels along the network path, with each subcarrier frequency carrying only a fraction of the wavelength bandwidth. By reserving one or more such subcarrier frequencies along a path connecting two edge nodes, a dedicated end-to-end sub-wavelength circuit is provisioned. At an intermediate node, incoming frequencies are switched to outgoing frequencies via a cross-bar electronic circuit switch or cross-connect. By performing digital subcarrier multiplexing DSCM using CMOS based advanced digital signal processing DSP algorithms, spectral guard-bands between adjacent channels are not necessary, thus yielding good bandwidth efficiency when multiplexing multiple subcarrier channels onto the same wavelength.Compared to current TDM based transport network solutions, e.g., OTN/SONET/SDH, the described solution offers the unique advantage of implementing two key transport functionalities in the same DSP system, which is capable of 1 performing compensation of fiber transmission impairments in the electronic domain to ensure good signal integrity, and 2 multiplexing demultiplexing subcarrier channels after before add/drop and switching circuit operations. Because of this design advantage, system complexity and fabrication of the network equipment are ameliorated, possibly leading to tangible cost and electric power consumption reductions. |
Year | DOI | Venue |
|---|---|---|
2013 | 10.3233/JHS-130465 | J. High Speed Networks |
Keywords | Field | DocType |
subcarrier frequency,sub-wavelength circuit,network equipment,dedicated end-to-end sub-wavelength circuit,digital subcarrier,demultiplexing subcarrier channel,cross-bar electronic circuit switch,digital subcarrier optical network,multiplexing multiple subcarrier channel,spectrally efficient digital subcarrier,circuit operation | Subcarrier,Optical Transport Network,Circuit switching,Computer science,Subcarrier multiplexing,Computer network,Bandwidth (signal processing),Multiplexing,Digital cross connect system,Synchronous optical networking | Journal |
Volume | Issue | ISSN |
19 | 1 | 0926-6801 |
Citations | PageRank | References |
1 | 0.35 | 6 |
Authors | ||
7 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Rongqing Hui | 1 | 2 | 3.78 |
| Wan-Jun Huang | 2 | 23 | 5.86 |
| Yuanyuan Zhang | 3 | 1 | 0.35 |
| Mahmood Hameed | 4 | 1 | 0.35 |
| Miguel Razo | 5 | 19 | 8.27 |
| Marco Tacca | 6 | 150 | 28.05 |
| A. Fumagalli | 7 | 309 | 44.27 |