Ad-Hoc Network Containment via Intermediary Beacon Override
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Solution Overview
Problem
The proliferation of ad-hoc Wi-Fi networks in public areas leads to network congestion and reduced capacity in infrastructure networks, as vulnerable devices inadvertently propagate these networks, causing a viral spread of unsecured connections that attract users away from managed access points, leading to increased traffic and service disruptions.
Innovation Solution
A reactive system that monitors for ad-hoc beacon signals, generates a new network identity with a higher security mechanism, and transmits this identity to override the ad-hoc network, ensuring devices default to a secure infrastructure network, preventing further propagation and maintaining network integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If ad-hoc networks are allowed to propagate freely in public areas, then network coverage and accessibility are improved, but network congestion and service disruption increase
Solution Approach 1:
The patent introduces a containment network as an intermediary between the ad-hoc network and user devices. This containment network with higher security mechanisms acts as a mediator that intercepts connection attempts, preventing direct joining of ad-hoc networks while maintaining network coverage accessibility.
Solution Approach 2:
The system proactively detects ad-hoc beacon signals and preemptively establishes containment networks before users can connect to ad-hoc networks. This preliminary action prevents the harmful propagation effect from occurring in the first place, rather than reacting after congestion has already occurred.
2Ease of operation
If devices automatically join ad-hoc networks with enticing names, then ease of connection is improved, but network security and stability deteriorate
Solution Approach 1:
The containment network serves as an intermediary that devices connect to instead of ad-hoc networks. The connection process remains easy and automatic from the user perspective, but the containment network mediates and controls the connection, preventing instability caused by ad-hoc network propagation.
Solution Approach 2:
The system changes the security parameter of the containment network to be higher than ad-hoc networks. This parameter change ensures that while devices can easily connect to networks with enticing names, the higher security mechanism prevents the harmful effects of ad-hoc network joining.
3Area of stationary object
If beacon signals are transmitted at lowest modulation rate, then coverage area is improved, but network congestion increases
Solution Approach 1:
The containment network acts as an intermediary that receives beacon signals at low modulation rates for wide coverage, but manages connection traffic more efficiently. This mediates between the need for wide coverage and the need to prevent congestion from excessive connection attempts.
Data Source
AI summary
A network management system (19) associated with monitors activity in a first wireless access network (100, 101, 102), for the effect of rogue user terminals (22) transmitting beacons for ad-hoc networks. If it is detected that such an ad hoc network would pose a threat to the integrity of the fixed network and that it is necessary to contain the spread of the ad-hoc network, a network detection unit (32) determines the parameters of the ad-hoc network, from the beacons being transmitted by the terminal (22). A network configuration unit (34) creates an additional network identity for a second network, having the same name as the rogue network but having a higher security setting which will cause any user terminals to preferentially connect to the additional network instead of the second network. The network configuration unit then generates beacons for this additional network identity to be transmitted by the access point (100) which first detected the beacon, which allows the network management system to control and contain the expansion of the second, ad hoc, network preventing it disrupting the channel plan for the first network.