Wavelength allocation in regional access network with...

Details Wavelength allocation in regional access network with... Wavelength allocation in regional access network with...

2007-09-24

2008-12-16

Pascal, Leslie (Department: 2613)

Optical communications

Multiplex

Broadcast and distribution system

C398S083000

Reexamination Certificate

active

07466918

ABSTRACT:
Wavelength assignment schemes that provide full-connectivity in RANs with fixed-tuned OADMs. In the first scheme, wavelengths are assigned to nodes according to Hadamard code, and in the second scheme, bands of contiguous wavelengths are assigned to nodes. Simulation results show that on the average, the Hadamard wavelength assignment schemes approach the performance of RANs with OADMs that add-drop all wavelengths, while saving 50% of the TDM terminals. The saving of TDM terminals by using wavelength tunable OADMs vary in different cases. Tunable OADMs are advantageous for lower traffic granularity and more interactions of a RAN with the outside network.

REFERENCES:
patent: 4759011 (1988-07-01), Hicks, Jr.
patent: 5963348 (1999-10-01), Oberg

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