Power Balancing in Cooperative Communication Networks
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Solution Overview
Problem
In mobile communication systems, the imbalance in signal-to-noise ratios (SNRs) between source, relay, and destination nodes leads to inefficient power consumption and throughput, as untamed increases in transmit power can result in poor throughput and additional system interference.
Innovation Solution
A method to adjust transmission power by receiving quality measurement signals from relay stations to balance the SNRs between source, relay, and destination nodes, ensuring uniform reception rates and reducing power waste by optimizing power levels at each node.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If transmit power is increased at source node, then signal strength improves, but power consumption increases and system interference increases
Solution Approach 1:
The patent dynamically adjusts transmit power levels at source and relay nodes based on real-time SNR measurements and channel conditions. Power control signals are exchanged between nodes to optimize transmission power, reducing energy waste while maintaining adequate signal quality for reliable communication.
Solution Approach 2:
The system implements feedback mechanisms where destination nodes measure SNR and send power control signals back to source and relay nodes. This closed-loop control enables continuous optimization of power levels based on actual reception quality, preventing both under-transmission and excessive power consumption.
2Illumination intensity
If transmit power is increased at source node, then signal strength improves, but system interference increases
Solution Approach 1:
The patent employs dynamic power adjustment based on measured SNR values and channel state information. By optimizing transmit power parameters in real-time, the system achieves adequate signal strength while minimizing interference to other users and systems, balancing performance with interference management.
3Use of energy by moving object
If transmit power is unbalanced between source and relay nodes, then one node consumes more power than it contributes to throughput, but the other node causes lower-limit in throughput
Solution Approach 1:
The system dynamically balances transmit power parameters at source and relay nodes based on real-time SNR measurements. Power control signals coordinate power levels across the transmission chain to ensure each node contributes appropriately to throughput while consuming proportional energy, optimizing the power-throughput relationship.
Solution Approach 2:
Feedback mechanisms enable continuous monitoring and adjustment of power distribution across nodes. Destination nodes provide SNR measurements that trigger power control signals, creating a closed-loop system that automatically balances power consumption and throughput contribution at each node.
Data Source
AI summary
A method of adjusting transmission power for data communicated in a mobile communication system, wherein data is transmitted from a source station to a destination station over a first route and a second route. The method comprises receiving a first transmission power control signal; wherein a destination station generates a second transmission power control signal, in response to receiving a quality measurement signal from the relay station for data communicated to the destination station over a combination of the first route and the second route; and adjusting data transmission power according to the first transmission power control signal.