Wavelength Reallocation Assisting Device for Optical Networks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wavelength division multiplexing optical networks with complex topologies, determining optimal times for wavelength reallocation to improve efficiency is challenging due to varying modulation bandwidths and frequent additions/deletions of optical lines, leading to decreased wavelength usage efficiency.
Innovation Solution
A method and device that provide information on wavelength allocation states, including the sum of bandwidths of used wavelength slots and maximum individual used bandwidths across optical fibers, to assist network administrators in determining when wavelength reallocation is necessary, thereby optimizing resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wavelength reallocation is performed frequently to maintain high wavelength usage efficiency, then wavelength usage efficiency is improved, but network operation complexity and cost increase
Solution Approach 1:
The patent replaces manual wavelength reallocation operations with an automated determination device that calculates wavelength usage efficiency indicators automatically. The device substitutes human judgment and manual analysis with computational algorithms that process network state data and generate reallocation recommendations, thereby reducing operational complexity while maintaining efficiency optimization.
Solution Approach 2:
The determination device enables the network system to self-monitor and self-evaluate its wavelength usage efficiency. By automatically calculating efficiency indicators and comparing them against thresholds, the system can autonomously identify when reallocation is needed without requiring continuous human intervention, allowing the network to serve its own optimization needs.
2Stability of the object's composition
If wavelength reallocation is delayed to reduce operation frequency, then network operation stability is improved, but wavelength usage efficiency decreases
Solution Approach 1:
The determination device implements a feedback mechanism that continuously monitors network state and calculates wavelength usage efficiency indicators. When the indicator exceeds a predetermined threshold, the device triggers a reallocation operation. This closed-loop feedback system ensures reallocation occurs at the optimal moment - neither too early (disrupting stability) nor too late (reducing efficiency).
Solution Approach 2:
The device performs preliminary evaluation of wavelength usage efficiency before triggering reallocation. By calculating efficiency indicators in advance and comparing them against thresholds, the system prepares for reallocation only when truly necessary, maintaining stability during normal operation while ensuring efficiency is optimized when conditions warrant it.
3Measurement precision
If detailed wavelength allocation information is provided to determine reallocation timing, then reallocation accuracy is improved, but information processing complexity increases
Solution Approach 1:
The determination device extracts only the essential information needed for efficiency calculation from the complete wavelength allocation data. Instead of processing all raw network configuration data, the device identifies and extracts specific parameters such as allocated wavelength counts, bandwidth usage, and optical line states, thereby reducing processing complexity while maintaining determination accuracy.
Solution Approach 2:
The patent transforms complex wavelength allocation data into simplified efficiency indicators through parameter transformation. The device converts detailed allocation information into standardized metrics that can be directly compared against thresholds, changing the form of the data to make it more suitable for automated decision-making while preserving the essential information needed for accurate determination.
Data Source
AI summary
A wavelength reallocation assisting method provides information relating to wavelength allocation to optical lines in a wavelength division multiplexing optical network in which a plurality of nodes are connected by optical fibers. The wavelength reallocation assisting method includes: outputting first allocation state information that indicates a sum of bandwidths of respective wavelength slots used by at least one of the optical lines among a plurality of wavelength slots that are available in the wavelength division multiplexing optical network; and outputting second allocation state information that indicates a maximum value of individual used bandwidths obtained with respect to the respective optical fibers, each of the individual used bandwidths indicating a sum of bandwidths of wavelength slots allocated to corresponding optical lines established in a corresponding optical fiber.