Optical communication system, optical communication method and non-transitory computer readable medium
AssigneeNEC Corporation
InventorsAnkith VINAYACHANDRAN, Manabu Arikawa, Kohei Hosokawa
Life of this patent
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Abstract
An optical communication system capable of solving frequent pilot pattern/training symbol requirement which leads to a reduced information throughput is provided. An optical communication system includes a pilot insertion means that inserts pilot signal according to an adaptive pilot overhead ratio, a system estimate means that estimates the characteristics of the equalized signal to access channel conditions, and a trigger pilot means that selects the appropriate pilot overhead ratio for the accessed channel conditions by various system mean.
Claims12
An optical communication system for transmitting an optical signal from a transmitter via an optical channel to a receiver;
- the system comprising:
- at least one memory storing instructions, and
- at least one processor configured to execute the instructions to;
- insert training or pilot signals at a desired pilot overhead ratio in an online operation state;
- estimate and characterizing the signal recovered from the optical channel utilizing adaptive filter parameters and estimated noise characteristics in the signal;
- and,
- utilize information obtained from the estimated signal to determine channel conditions and fix the required pilot overhead ratio.
An optical communication method for transmitting an optical signal from a transmitter via an optical channel to a receiver;
- the method comprising:
- inserting training or pilot signals at a desired pilot overhead ratio in an online operation state;
- estimating and characterizing the signal recovered from the optical channel utilizing adaptive filter parameters and estimated noise characteristics in the signal;
- and,
- utilizing information obtained from the estimated signal to determine channel conditions and fix the required pilot overhead ratio.
A non-transitory computer readable medium storing a program that causes a computer to execute an optical communication method for transmitting an optical signal from a transmitter via an optical channel to a receiver;
- the method comprising:
- inserting training or pilot signals at a desired pilot overhead ratio in an online operation state;
- estimating and characterizing the signal recovered from the optical channel utilizing adaptive filter parameters and estimated noise characteristics in the signal;
- and,
- utilizing information obtained from the estimated signal to determine channel conditions and fix the required pilot overhead ratio.
Dependencies are inferred from the claim text.