Wireless Relay Determination Using Neighbor Device Info
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Solution Overview
Problem
Existing wireless communication devices face challenges in increasing the adaptability to changes in the arrangement of communication devices while minimizing bandwidth usage, particularly in scenarios with high-speed mobile objects, where both flooding and ad hoc routing methods lead to inefficient bandwidth usage due to redundant data relaying and network control communications.
Innovation Solution
A wireless communication device equipped with a transmission and reception part, a device information storage part, and a relay determination part that attaches and stores device information with data, allowing for intelligent decision-making on data relaying based on comparisons between transmission and receiver device information, thereby optimizing bandwidth usage and adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If flooding method is used for data distribution, then bandwidth usage for actual data distribution is maximized, but redundant relay of data between neighboring communication nodes causes adding use of bandwidth
Solution Approach 1:
The patent applies preliminary action by pre-storing device information (identifiers, locations) of neighboring communication nodes before data distribution occurs. When data needs to be relayed, the communication node consults this pre-stored information to determine whether relay is necessary, preventing redundant transmissions before they happen. This advance preparation enables efficient real-time decision-making about data relay without requiring additional communication overhead.
2Reliability
If ad hoc routing with proactive type is used, then route construction is maintained continuously, but communication for network control increases bandwidth usage
Solution Approach 1:
The patent extracts and stores essential device information (identifiers, locations, device types) from continuous network control communications into local storage. This allows the system to maintain route construction reliability by having this information readily available, while eliminating the need for continuous proactive routing protocol communications that consume bandwidth. The essential information is taken out from the ongoing control channel and stored for later use in relay decisions.
Solution Approach 2:
The system performs preliminary action by pre-acquiring and storing device information through initial discovery procedures before actual data distribution needs occur. This advance preparation allows the communication nodes to make informed relay decisions without requiring continuous proactive routing protocol exchanges, thereby maintaining route reliability while reducing ongoing bandwidth consumption for network control.
3Loss of energy
If ad hoc routing with reactive type is used, then bandwidth usage for network control is reduced, but transmission of actual data delays due to required route construction procedure
Solution Approach 1:
The patent applies preliminary action by pre-storing device information including identifiers, locations, and device types of neighboring nodes before data transmission begins. When data needs to be transmitted, the source node can immediately consult this pre-stored information to determine appropriate relay targets without initiating a time-consuming route construction procedure. This advance preparation eliminates the reactive routing delay while maintaining low bandwidth usage since no additional control communications are needed.
Solution Approach 2:
The system implements self-service by enabling communication nodes to autonomously make relay decisions using locally stored device information, without requiring external route construction procedures or network control communications. Each node serves itself by maintaining its own device information database and using it to independently determine whether and to which nodes to relay data, thereby eliminating both the time delay and bandwidth overhead associated with reactive routing protocols.
4Loss of energy
If device information is stored and compared for relay determination, then unnecessary data transmission is reduced, but device information storage and comparison processes are required
Solution Approach 1:
The patent applies local quality by storing only the specific device information that is actually needed for relay decisions (identifiers, locations, device types of neighboring nodes) rather than maintaining complete network state information. This selective local storage minimizes the complexity of information management while still enabling effective relay determination. Each node stores quality-filtered information relevant to its local decision-making needs, avoiding the complexity of global network knowledge.
Data Source
AI summary
A wireless communication device of the present invention has a device information storage part that stores device information identifying another wireless communication device that can establish wireless communication. When transmitting data, the wireless communication device attaches transmission source neighboring device information stored in the device information storage part of the device to the data, and transmits the data to another wireless communication device. When receiving data, the wireless communication device stores transmission source device information identifying another wireless communication device having transmitted the data into the device information storage part of the device. The wireless communication device determines whether to relay and transmit the received data to another wireless communication device on the basis of the result of comparison between the transmission source neighboring device information attached to the received data and receiver neighboring device information stored in the device information storage part of the device.