Wireless Communication Device Band Switching for Ad-hoc Network Congestion
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Solution Overview
Problem
Ad-hoc networks face congestion due to a shortage of available communication bands as the number of wireless communication devices increases, making it difficult to maintain both high device connectivity and efficient information transmission.
Innovation Solution
A wireless communication device with multiple units that form separate ad-hoc networks, switching between different communication configurations to optimize band usage, determining if any device would be isolated by the change and adjusting accordingly to ensure no device is left unable to communicate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of wireless communication devices joining the ad-hoc network increases, then the connectivity and communication opportunities increase, but the available communication bands decrease due to congestion
Solution Approach 1:
The patent divides the ad-hoc network into multiple virtual channels or logical communication paths within the physical wireless medium. By segmenting the communication space into distinct virtual channels, the system allows multiple device pairs to communicate simultaneously without interfering with each other, effectively increasing the available communication capacity as more devices join the network.
Solution Approach 2:
The patent introduces an additional dimensional space for communication by implementing virtual channel differentiation. Instead of competing for the same single-dimensional wireless spectrum, devices are allocated different virtual channel dimensions, allowing parallel communication flows and preventing congestion even as device count increases.
2Adaptability or versatility
If the number of wireless communication devices increases, then communication opportunities increase, but control data communication traffic increases reducing available bands for information transmission
Solution Approach 1:
The patent segments control data communication from information transmission by assigning them to different virtual channels. Control packets and application data travel through separate logical paths, preventing control overhead from consuming the bandwidth needed for user information and maintaining efficient data transmission even in large networks.
Solution Approach 2:
The patent introduces virtual channel management as an intermediary layer that separates control plane traffic from data plane traffic. This intermediary mechanism handles control data efficiently without interfering with information transmission, allowing the network to scale while preserving bandwidth for application data.
Data Source
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AI summary
A wireless communication device (1) conducts ad-hoc wireless communication with different wireless communication devices, and thus conducts wireless communication across a plurality of ad-hoc wireless communication networks. The wireless communication device (1) includes two wireless communication units (11) each of which switches one of a VHF band and a UHF band to another to conduct wireless communication; a determination unit (12) which determines whether or not it is necessary to change a frequency band when one of the wireless communication units (11) uses the VHF band to conduct the wireless communication, and further determines whether or not there is a wireless communication device that becomes unable to conduct wireless communication due to using the UHF band when the change is necessary; and a communication control unit (13) which performs control to switch the band to the UHF band when it is determined that there is no wireless communication device which becomes unable to conduct wireless communication, and to leave the band as the VHF band when it is determined that there is a wireless communication device which becomes unable to conduct wireless communication.