Communication Device Proxy Transmission Quality Assessment
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Solution Overview
Problem
The radio communication system's throughput degrades due to unnecessary proxy transmissions by interception nodes, even when the destination node receives ACK packets normally, and the involvement of nodes with poor communication quality in proxy transmissions, leading to increased collision probabilities and overhead in path control systems.
Innovation Solution
A communication device that assesses the quality of communication between nodes and only initiates proxy transmissions when the receiving condition is poor, using a quality index comparison to determine if the communication device's quality is better than the transmission source and destination node's quality, thereby reducing unnecessary proxy transmissions and collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If interception nodes perform proxy transmission when they cannot receive ACK packets, then packet delivery reliability is improved, but unnecessary proxy transmissions occur when destination nodes receive ACK packets normally, degrading system throughput
Solution Approach 1:
The interception node performs preliminary assessment of communication quality between itself and the destination node before deciding to execute proxy transmission. This preliminary action prevents unnecessary proxy transmissions by evaluating whether the interception node is actually suitable for retransmission, thereby maintaining throughput while ensuring reliable packet delivery when needed.
2Adaptability or versatility
If nodes with poor communication quality participate in proxy transmission, then more interception nodes are available for retransmission, but collision probability increases and system overhead increases
Solution Approach 1:
The patent applies local quality assessment by evaluating the specific communication quality between each interception node and the destination node. Only interception nodes with sufficiently good communication quality (above a threshold) are selected for proxy transmission. This ensures that while multiple nodes can participate, they are specifically those with good local communication conditions, thereby reducing collision probability and system overhead.
3Reliability
If the transmission source node retransmits packets when reception fails, then packet delivery is attempted, but when the destination node has poor reception conditions, retransmission failures repeat and throughput degrades
Solution Approach 1:
The patent introduces an intermediary approach where interception nodes with good communication quality act as mediators between the transmission source node and the destination node. Instead of the transmission source node directly retransmitting to a destination node with poor reception conditions, the interception node with better local conditions performs the retransmission, thereby improving reliability without degrading throughput.
Data Source
AI summary
In order to settle a problem of suppressing degradation of a throughput of a communication system, a communication device is provided with a reception means which receives and accumulates a first datum which a first device transmits addressing a second device and a second datum which the second device transmits, a transmission means which transmits the first datum to the second device, a quality index acquisition means which acquires a first index which is a quality of communication between the first device and the second device and a second index which is a quality of communication between the communication device and the second device, and a judgment means which forces to transmit the accumulated first datum to the second device using the transmission means in the case of judging that the second index is better than the first index and a reception condition of the second datum shows that the second device does not receive normally the first datum.