Optical Communication Interface Using N-Dimensional DSQ for High Bandwidth
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Solution Overview
Problem
Existing data communication systems are inadequate for handling the high bandwidth demands of modern internet and mobile applications, particularly in spine-leaf network architectures where large amounts of data need to be shared quickly among servers, leading to insufficient bandwidth and latency issues.
Innovation Solution
The implementation of n-dimensional DSQ (Double Square Quadrature Amplitude Modulation) formats in optical communication networks, optimized by reducing symbol density, to enhance signal-to-noise ratio and facilitate high-bandwidth data transfer through spine switches and leaf switches, allowing for efficient data sharing among servers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If n-dimensional DSQ formats are implemented in optical communication networks, then bandwidth is improved, but device complexity increases
Solution Approach 1:
The communication interface is divided into separate functional modules: an n-dimensional DSQ encoder that processes input data into encoded symbols, and an n-dimensional DSQ decoder that reconstructs output data from received symbols. This segmentation allows each module to be optimized independently for high bandwidth performance while managing complexity through modular design.
Solution Approach 2:
The patent applies n-dimensional DSQ modulation which extends traditional 2-dimensional QAM into n-dimensional signal space. This dimensional expansion increases the number of distinguishable signal states, thereby increasing bandwidth capacity without requiring proportional increases in physical transmission resources, thus improving productivity while managing device complexity through mathematical optimization.
2Reliability
If symbol density is reduced to improve signal-to-noise ratio, then reliability is improved, but bandwidth efficiency deteriorates
Solution Approach 1:
The patent optimizes the balance between symbol density and signal-to-noise ratio by adjusting modulation parameters in the n-dimensional DSQ format. By changing the dimensionality n and the constellation configuration, the system can achieve high signal-to-noise ratio (improved reliability) while maintaining acceptable bandwidth efficiency through the increased signal space utilization provided by higher dimensions.
Data Source
AI summary
The present invention is directed to data communication system and methods. More specifically, various embodiments of the present invention provide a communication interface that is configured to transfer data at high bandwidth using nDSQ format(s) over optical communication networks. In certain embodiments, the communication interface is used by various devices, such as spine switches and leaf switches, within a spine-leaf network architecture, which allows large amount of data to be shared among servers.