Access Node Message Overload Prevention in Wireless Networks
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Solution Overview
Problem
IoT devices often exhibit aggressive behavior by repeatedly attempting to connect to wireless networks without authorization, leading to resource consumption and inefficiencies in wireless and computational resources.
Innovation Solution
Implementing a system where an access node establishes a wireless connection with IoT devices, forwards connection requests to a controller node, and upon receiving a denial message, terminates the connection and limits future connection attempts for a predetermined period, using a back-off timer to manage reconnection attempts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless devices repeatedly attempt to connect to the wireless network without authorization, then the wireless devices can establish connections, but the network resources and computational resources are consumed excessively
Solution Approach 1:
The access node performs preliminary authentication and authorization checks before establishing a wireless connection. By verifying device credentials and network permissions in advance, the system prevents unauthorized devices from consuming network resources through repeated connection attempts, while still allowing legitimate devices to connect reliably
Solution Approach 2:
The system implements a feedback mechanism where the access node monitors connection attempts and device behavior. When unauthorized or aggressive connection patterns are detected, the access node sends rejection messages and terminates connections, providing real-time feedback that prevents resource exhaustion while maintaining reliable connections for authorized devices
2Adaptability or versatility
If the access node allows multiple connection attempts from unauthorized devices, then connection flexibility is maintained, but the computational resources for authentication are depleted
Solution Approach 1:
The access node performs preliminary authentication checks and device verification before allowing connection attempts. By pre-validating device credentials and authorization status, the system maintains flexibility for legitimate devices while preventing computational resource depletion from unauthorized authentication processes
Solution Approach 2:
The system extracts and validates essential authentication credentials at the access node before allowing full connection attempts. By separating the initial verification step from the complete authentication process, the system reduces computational load while maintaining connection flexibility for authorized devices
3Ease of operation
If the wireless connection is established with IoT devices that exhibit aggressive behavior, then the devices can access network services, but repeated connection attempts cause message overloading
Solution Approach 1:
The access node implements continuous monitoring and feedback mechanisms to detect aggressive connection behavior patterns. When such behavior is identified, the system sends rejection messages and terminates connections, providing immediate feedback that prevents message overloading while maintaining ease of operation for normal devices
Solution Approach 2:
The system dynamically adjusts connection policies based on real-time device behavior analysis. For devices exhibiting aggressive patterns, the access node dynamically terminates connections and limits future attempts, while maintaining flexible connectivity for well-behaved devices, thus preserving network service efficiency
4Loss of energy
If the access node terminates connections immediately upon authorization denial, then resource consumption is reduced, but connection establishment time increases for legitimate devices
Solution Approach 1:
The access node performs preliminary authentication and authorization checks before establishing full wireless connections. By verifying device credentials and network permissions in advance, the system conserves resources by preventing unauthorized connections while minimizing connection setup time for legitimate devices that pass the preliminary checks
Data Source
AI summary
Systems, methods, and processing nodes are related to preventing message overloading in a wireless network. The method includes establishing, by the access node, the wireless connection with the wireless device. The method also includes forwarding, from the access node to a controller node, a network connection message from the wireless device. The network connection message requests connection to network services of the wireless network. Additionally, the method includes receiving, at the access node from the controller node, a message indicating that the wireless device is denied access to the network services. Also, the method includes terminating, at the access node, the wireless connection with the wireless device in response to receiving the message. The method further includes limiting, at the access node, an establishment of future wireless connections with the wireless device in response to receiving the message.