Cooperative Data Forwarding via Channel Precoding
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Solution Overview
Problem
Current data communication methods face inter-channel interference, poor received signal strength, and overheating issues due to excessive transmit power, which affect the reliability and efficiency of data transmission in cooperative communication systems.
Innovation Solution
A data communication method that involves generating pre-request messages, determining candidate forwarding terminals based on received pre-response messages, and performing channel precoding to optimize data transmission through selected terminals, thereby avoiding inter-channel interference and ensuring reliable data transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple forwarding terminals are used for cooperative communication, then data transmission efficiency and spectrum utilization are improved, but inter-channel interference increases
Solution Approach 1:
The patent performs preliminary channel measurement and feedback collection before actual data transmission. The sending terminal measures channel states with forwarding terminals and receives feedback information, then uses this pre-acquired data to select optimal forwarding terminals and determine transmission parameters, thereby avoiding inter-channel interference during the actual transmission process
Solution Approach 2:
The patent implements a feedback mechanism where forwarding terminals send feedback information about channel conditions to the sending terminal. The sending terminal uses this feedback to select appropriate forwarding terminals and adjust transmission parameters, ensuring that inter-channel interference is minimized while maintaining high transmission efficiency
2Reliability
If transmit power is increased to improve signal strength, then data transmission reliability is improved, but circuit board overheating occurs
Solution Approach 1:
The patent dynamically adjusts transmission parameters including transmit power, modulation scheme, and coding rate based on real-time channel conditions and feedback information. This allows the system to maintain reliable data transmission while avoiding excessive power consumption that would cause overheating
Solution Approach 2:
The patent implements dynamic power control where the transmit power is adjusted according to channel conditions, distance, and interference levels. The system can switch between different transmission modes and power levels to maintain reliability without causing thermal issues
3Use of energy by stationary object
If more forwarding terminals are involved, then spectrum utilization is improved, but received signal strength indication deteriorates
Solution Approach 1:
The patent performs preliminary channel measurement and signal strength assessment with each potential forwarding terminal before selecting them for data transmission. This pre-measurement allows the system to identify terminals with sufficient signal strength and select them appropriately, ensuring both good spectrum utilization and adequate signal quality
Solution Approach 2:
The patent evaluates and selects forwarding terminals based on their individual channel conditions and signal strength characteristics. Each terminal is assessed locally for its suitability, and only terminals meeting specific signal strength criteria are selected for participation, ensuring overall system performance while maintaining adequate individual signal quality
Data Source
AI summary
Provided are a data communication method and system, a device, and a storage medium. The data communication method includes generating a pre-request message and sending the pre-request message to each forwarding terminal in a forwarding terminal group; receiving a pre-response message returned by each forwarding terminal, where the pre-response message is generated after a receiving terminal group receives the pre-request message forwarded by a corresponding forwarding terminal and is returned by the receiving terminal group to the corresponding forwarding terminal; determining candidate forwarding terminals from the forwarding terminal group according to the received pre-response message in response to a forwarding terminal screening condition being currently satisfied; and when the candidate forwarding terminals satisfy a transmission condition, forwarding to-be-transmitted data to the receiving terminal group through the candidate forwarding terminals.