Optical Pulse Superposition Multiplexing for Higher Data Throughput
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Solution Overview
Problem
Conventional communication systems are limited in throughput due to the avoidance of superposition of transmission signals, which restricts their ability to efficiently transmit data.
Innovation Solution
A system and method that de-multiplexes a data source into N overlapping data streams with unique pulses, allowing for the generation of 2N unique output pulses through superposition, where each output pulse represents N bits of data, using optical or RF transmitters and receivers with LEDs or antennas to sum uniquely shaped pulses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If superposition of multiple transmission signals is used, then data transmission throughput is increased, but transmission errors increase
Solution Approach 1:
The data stream is segmented into N separate data streams that are transmitted simultaneously using superposition. Each data stream is modulated with a unique pulse shape, allowing the receiver to separate and decode each stream independently, thereby maintaining reliability while increasing throughput
Solution Approach 2:
Each data stream is assigned a unique local characteristic (pulse shape) that distinguishes it from other streams. This local quality differentiation allows the receiver to identify and decode individual streams within the superposed signal, enabling error-free transmission despite signal combination
2Reliability
If conventional modulation techniques are used without superposition, then transmission reliability is maintained, but data transmission capacity is limited
Solution Approach 1:
Multiple data streams are merged into a single transmitted signal through superposition. Each stream maintains its unique pulse characteristics, allowing the combined signal to carry N times the data capacity while the receiver can separate and decode each stream independently, maintaining reliability
Solution Approach 2:
The system transitions from single-dimension modulation to multi-dimensional modulation by using multiple pulse dimensions (shape, amplitude, phase) simultaneously. This dimensional expansion allows multiple data streams to be transmitted in parallel without interference, increasing capacity while maintaining error rates
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach significantly increases throughput by enabling each output pulse to represent multiple data bits, enhancing data transmission efficiency and capacity.
Implementation Method 1
N light emitting diodes (LEDs) that transmit the N respective data streams
Implementation Method 2
The transmitter also includes an optical source optically transmitting an output pulse
Implementation Method 3
a photo-sensor for receiving optical pulses from a transmitter, and converting the optical pulses into electrical pulses
Data Source
AI summary
The present invention relates to an optical transmitter for transmitting data. The optical transmitter includes a pulse generator for generating N data streams overlapping in time from a de-multiplexed data source. Each respective data stream has pulses with shapes unique to that respective data stream. The transmitter also includes an optical source optically transmitting an output pulse that is generated by summing the uniquely shaped pulses from each respective data stream that are overlapping in time. Each output pulse represents N bits of the data source, where N>1.