Quality of service in an optical network
First Claim
1. A method comprising:
- providing quality of service in a wavelength division multiplexing optical network that supports a plurality of bit rates by,determining cumulative noise and cumulative chromatic dispersion for each available path as a whole, wherein an available path is a series of two or more nodes each connected by an optical link on which a set of wavelengths is available for establishing a lightpath; and
distinguishing different grades of path quality based on bit error rate (BER), where BER is based on cumulative noise and bit rate; and
requiring a minimum path quality based on chromatic dispersion decibel penalty, where chromatic dispersion decibel penalty is based on cumulative chromatic dispersion and bit rate.
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Abstract
A method and apparatus for implementing optical network quality using bit error rate and chromatic dispersion. According to one embodiment of the invention, a method includes the provision of quality of service in a wavelength division multiplexing optical network that supports a plurality of bit rates. As part of this method, the cumulative noise and cumulative chromatic dispersion for each available path as a whole is determined, where an available path is a series of two or more nodes each connected by an optical link on which a set of wavelengths is available for establishing a lightpath. In addition, different grades of path quality are distinguished based on bit error rate (BER), where BER is based on cumulative noise and bit rate. Furthermore, a minimum path quality is required based on chromatic dispersion decibel penalty, where chromatic dispersion decibel penalty is based on cumulative chromatic dispersion and bit rate.
56 Citations
5 Claims
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1. A method comprising:
providing quality of service in a wavelength division multiplexing optical network that supports a plurality of bit rates by, determining cumulative noise and cumulative chromatic dispersion for each available path as a whole, wherein an available path is a series of two or more nodes each connected by an optical link on which a set of wavelengths is available for establishing a lightpath; and distinguishing different grades of path quality based on bit error rate (BER), where BER is based on cumulative noise and bit rate; and requiring a minimum path quality based on chromatic dispersion decibel penalty, where chromatic dispersion decibel penalty is based on cumulative chromatic dispersion and bit rate. - View Dependent Claims (2, 3, 4, 5)
Specification