Directional Communication Node Angle Selection
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Solution Overview
Problem
Directional communication media, such as millimeter waves, are susceptible to shielding and disturbance due to their directionality, making it challenging to maintain a robust communication network with adaptive changes like node subscription and position changes.
Innovation Solution
A communication apparatus and system that determine communication destinations based on angle selection and priority adjustment, using directional communication media to minimize disturbance by selecting communication paths that maintain a predetermined angle between nodes and lowering priority for nodes within specific angular ranges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If directional communication media are used to achieve large capacity and low delay communication, then communication capacity and speed are improved, but the system becomes susceptible to shielding and disturbance due to directionality
Solution Approach 1:
The patent implements dynamic determination of communication destinations by selecting multiple destinations such that the angle between them as viewed from the communication apparatus is not less than a predetermined angle. This dynamic selection adapts to changing network conditions and node positions, allowing the system to maintain reliable communication by switching between destinations when shielding or disturbance occurs, thus resolving the contradiction between using directional media for high capacity and maintaining robustness against directional vulnerabilities.
2Reliability
If multiple communication destinations are selected to improve network robustness, then communication reliability is improved, but the complexity of destination selection and angle management increases
Solution Approach 1:
The patent simplifies the complexity of multiple destination selection by introducing a specific geometric parameter constraint: the angle between communication destinations must be not less than a predetermined angle. This parameter-based approach provides a clear, quantifiable criterion for destination selection, making the complexity manageable through mathematical constraints rather than complex algorithms. The angle parameter serves as a simple yet effective rule for maintaining destination diversity while ensuring robustness.
3Reliability
If communication destinations are selected based on angular separation to minimize disturbance, then communication quality is improved, but the flexibility in node subscription and position changes is reduced
Solution Approach 1:
The patent resolves the contradiction between angular separation constraints and node adaptability by implementing dynamic destination determination. Instead of fixing destinations based on static angular positions, the system continuously determines destinations based on current network conditions, node positions, and angle constraints. This dynamic approach allows nodes to subscribe and change positions freely while the system adapts by selecting destinations that satisfy the angular separation requirement, thus maintaining both communication quality and adaptability.
Data Source
AI summary
A communication apparatus (20) according to an example aspect of the present invention includes: at least one communication means (21) that is configured to be capable of transmitting and receiving directional communication media; and a determination means (22) that determines at least one communication destination with which to communicate by the at least one communication means, in the case of determination of communication with a plurality of communication destinations, the determination means selecting the plurality of communication destinations so that an angle between the plurality of communication destinations as viewed from the communication apparatus is not less than a predetermined angle.