Area-Limited Self-Organized Wireless Network Management
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Solution Overview
Problem
Conventional Ad-hoc networks lack area limitation, which poses challenges for communications security, secrecy, and efficiency, as nodes can freely enter or exit the network, leading to potential security breaches and operational complexities.
Innovation Solution
An area-limited self-organized wireless network management method that uses area limiting signals to define a specific boundary, where nodes determine the presence of a master node upon entry, perform identity authentication, and switch roles dynamically to ensure secure communication within the defined area, with the master node managing new sub nodes and shared secret key synchronization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If area limitation is implemented using infrared rays, NFC, ultrasonic waves, or microwaves, then communication security and secrecy are improved, but device complexity increases
Solution Approach 1:
The patent introduces area limiting signals as an intermediary mechanism to define the network boundary. These signals serve as mediators between the physical area constraint and the logical network membership, allowing nodes to determine their area status without direct complex hardware interactions. The area limiting signals act as a shared reference that simplifies the authentication and role determination processes.
Solution Approach 2:
The patent implements self-service mechanisms where nodes automatically determine their role (master or sub-node) based on receiving area limiting signals. When a node enters the area and receives the signals, it autonomously performs identity authentication, role switching, and network session management without requiring manual configuration or complex external control. The master node automatically manages sub-node entry and secret key synchronization.
2Reliability
If manual area boundary definition is used, then network security is improved, but user operation complexity increases
Solution Approach 1:
The system automatically manages network session creation, node role assignment, and security authentication without requiring manual user operations. Nodes self-organize into master-sub-node relationships based on area limiting signal reception, and the master node automatically manages sub-node entry and secret key distribution, eliminating the need for manual boundary definition and network configuration.
Solution Approach 2:
The area limiting signals are pre-established in the physical area before nodes enter. This preliminary setup of the area boundary allows nodes to automatically determine their network status upon entry without requiring real-time manual configuration. The preliminary area definition enables subsequent automated role switching and authentication processes.
3Productivity
If automatic role switching is implemented, then productivity is improved, but device complexity increases
Solution Approach 1:
The patent implements dynamic role switching where nodes can transition between master and sub-node roles based on their reception of area limiting signals and network conditions. The master node dynamically manages sub-node entry, and role assignments are automatically adjusted as nodes enter or exit the area, enabling flexible and efficient network adaptation without manual intervention.
Solution Approach 2:
Nodes automatically perform role determination and switching based on area limiting signal reception and identity authentication results. The master node autonomously manages network session creation, sub-node admission, and secret key synchronization, eliminating the need for manual role assignment and significantly improving network setup efficiency.
Data Source
AI summary
Disclosed are an area-limited self-organized wireless network management method, a communication apparatus, and a system. The method comprises a step of, when a communications apparatus which is entering the limited area receives area signals for indicating a specific area in which network nodes are located, determining by the communications apparatus whether the master node exists in the limited area; a step of, if it is determined that the master node exists, performing identity authentication with regard to the master node and letting the communications apparatus itself be a sub node by the communications apparatus; and a step of, if it is determined that the master node does not exist, letting the communications apparatus itself be the master node by the communications apparatus, wherein, the master node is in charge of entering of a new sub node and synchronization of shared secret keys between the network nodes.