Wireless Ad-Hoc Network Centrality Screening for Collision-Free TDMA
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Solution Overview
Problem
Existing wireless communication technologies for outdoor environments with changing positions are limited by half-duplex communication, master-slave networking dependency, and network coverage, leading to poor communication efficiency and reliability.
Innovation Solution
A communication method and apparatus based on wireless ad-hoc network that utilizes ad-hoc frequency tuning, TDMA node analysis, and network centrality screening to establish a temporary, autonomous, and self-repairing communication network with multi-hop forwarding capabilities, using multiple communication standards like Ad-hoc TDMA and Bluetooth (BLE, WiFi, GFSK, Zigbee) to ensure synchronization and data slot scheduling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If half-duplex communication similar to walky-talky is used, then two-way communication can be realized, but full duplex communication cannot be achieved and networking cannot be done
Solution Approach 1:
The system dynamically switches between half-duplex and full-duplex communication modes based on network conditions and device capabilities. Devices can transition from walky-talky style half-duplex to mesh network full-duplex communication as the network topology evolves, providing both reliability and flexibility.
Solution Approach 2:
The communication system integrates multiple communication modes (half-duplex, full-duplex, mesh networking) within a single platform. The device can function in various modes depending on network configuration, making it universally adaptable to different communication requirements.
2Ease of operation
If master-slave networking full duplex communication is used, then simple networking can be done, but all devices are dependent on the master device and ad-hoc networking cannot be realized
Solution Approach 1:
The network is segmented into multiple independent peer devices rather than relying on a single master device. Each device maintains its own communication capabilities and can independently participate in the network, eliminating the single point of failure associated with master-slave architectures.
Solution Approach 2:
Each device in the network serves itself and others equally, with no single device having master control. Devices autonomously manage their own connections and can independently establish and maintain network relationships,实现ing true ad-hoc networking while keeping operations simple.
3Adaptability or versatility
If full duplex communication by accessing operators' network is used, then networking can be realized, but the system is dependent on coverage of the operators' network and does not work well in outdoor environments
Solution Approach 1:
The system extracts communication capabilities from dependency on external operator networks and base stations. By implementing direct device-to-device communication through ad-hoc mesh networking, the system removes the intermediary infrastructure requirement, enabling reliable outdoor communication without operator network coverage.
4Productivity
If ad-hoc frequency tuning and TDMA node analysis are implemented, then communication efficiency and accuracy are improved, but device complexity increases
Solution Approach 1:
The system employs ad-hoc frequency tuning to dynamically adjust communication parameters such as frequency, time slots, and power levels based on network conditions. TDMA node analysis optimizes timing parameters to prevent collisions. These parameter adjustments improve communication efficiency while the underlying algorithms are designed to be computationally efficient.
Data Source
AI summary
A communication method, device and apparatus based on wireless ad-hoc network. The method comprises: collecting real time network topological information of a plurality of candidate communication terminals; screening the target communication terminal and the communication terminals for a target network central node and a plurality of network sub-central nodes, determining current central communication terminal and initial communication terminals corresponding to the plurality of network sub-central nodes; generating a list of centrality and generating a forwarding sequence table according to the list of centrality, generating a data time slot scheduling table based on the data time slot scheduling information, sending or forwarding the list of centrality, the forwarding sequence table and the data time slot scheduling table in the target RF channel; sending management and control instructions in the target RF channel and controlling all the initial communication terminals in the network cluster to execute the management and control instruction.