Coherent Transmitter Array for Extended Wireless Range
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Solution Overview
Problem
Low-power transmitters in wireless communication systems have limited range due to restricted power output, which is often necessary to avoid interference, and existing methods like BLAST require significant algorithmic analysis and digital signal processing to enhance range.
Innovation Solution
Low-power transmitters in an array transmit a common information stream coherently, increasing received energy by a factor of N squared, with phase coherence maintained through channel characterization signals or a central beacon, allowing for concurrent and synchronized transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If low-power transmitters are used to avoid interference and conserve power, then power consumption and interference are reduced, but transmission range is significantly limited
Solution Approach 1:
Multiple low-power transmitters are merged to work together as a unified system. By coordinating their transmissions to be coherent (in phase), they combine their signals constructively at the receiver, achieving an N-squared increase in received power where N is the number of transmitters. This allows the system to achieve the range of a single high-power transmitter while each individual unit remains low-power.
2Object-generated harmful factors
If low-power transmitters are used to avoid interference, then interference with other signals is reduced, but transmission range is significantly limited
Solution Approach 1:
Multiple low-power transmitters are merged to work together as a unified system. By coordinating their transmissions to be coherent (in phase), they combine their signals constructively at the receiver, achieving an N-squared increase in received power where N is the number of transmitters. This allows the system to achieve the range of a single high-power transmitter while each individual unit remains low-power.
3Length of moving object
If BLAST technique is used to increase transmission range, then range and throughput are improved, but algorithmic analysis and digital signal processing requirements increase significantly
Solution Approach 1:
Instead of using complex BLAST algorithms that require sophisticated signal processing at the receiver, this invention creates a simplified system where multiple transmitters copy the same information stream and transmit it coherently. The receiver only needs to detect the combined signal strength, eliminating the need for complex algorithms while achieving similar range extension benefits.
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 method significantly enhances the transmission range and signal quality for low-power transmitters by coherently combining signals from multiple units, providing a substantial gain in received signal energy without the need for complex processing.
Implementation Method 1
the transmitters are caused to transmit in a coherent manner. The resultant transmitted energy, as received at a receiver established to receive such transmissions, is thereby increased as a function of the number of operating transmitters
Data Source
AI summary
A method is provided for increasing the effective transmission range for ones of a plurality of low-power transmitters arranged in an array. In particular, the low-power transmitters are arranged to simultaneously transmit a common information stream, and the transmitters are caused to transmit in a coherent manner. The resultant transmitted energy, as received at a receiver established to receive such transmissions, is thereby increased as a function of the number of operating transmitters.