Communication Device Autonomous Scheduling for TDM Interference
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Solution Overview
Problem
In time-division multiplexing wireless communication, existing techniques fail to effectively suppress interference among multiple nodes transmitting data simultaneously, leading to data loss and inefficiencies due to the lack of a negotiation-free scheduling method that accounts for the number of hops in the network.
Innovation Solution
An autonomous communication scheduling algorithm is implemented, where each node determines its communication timing and frequency based on the number of hops from a root node, allowing for interference-free data transmission without the need for negotiation between nodes, using a linear topology and common determination rules across all devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If nodes transmit data simultaneously in the same slot, then communication productivity increases, but interference occurs leading to data loss
Solution Approach 1:
The network is segmented into multiple slots based on the number of hops from the root node. Each node is assigned to a specific slot according to its hop count, which divides the transmission space in a temporal dimension. This segmentation prevents simultaneous transmissions in the same slot while maintaining high overall communication efficiency through structured time-division multiplexing.
2Reliability
If a negotiation mechanism is implemented to avoid interference, then communication reliability improves, but control overhead increases
Solution Approach 1:
The slot assignment is performed in advance based on the predetermined determination rule using the number of hops from the root node. Each node autonomously determines its transmission slot without real-time negotiation, as the scheduling decision is made beforehand during network initialization or node joining. This preliminary action eliminates the need for continuous control messages while ensuring reliable interference-free communication.
3Reliability
If slot timing is adjusted in advance according to network scale, then interference is suppressed, but adaptability to dynamic network conditions decreases
Solution Approach 1:
The slot assignment is dynamically determined based on the number of hops from the root node, which automatically adapts to changes in network topology. When nodes are added or removed, the hop counts change, and slots are reassigned accordingly without requiring manual reconfiguration. This dynamic approach maintains reliable interference suppression while adapting to varying network conditions and scales.
Data Source
AI summary
According to one embodiment, a communication device includes one or more processors. The one or more processors are configured to: determine a timing of time-division multiplexing data communication and a radio frequency to be used for the data communication based on a predetermined determination rule common to a plurality of communication devices included in a time-division multiplexing communication system, the predetermined determination rule using a number of hops from a specific communication device of the plurality of communication devices; and control wireless communication to be performed at the determined frequency at the determined timing.