Scalable Geographic Addressing Framework for Mobile Networks
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Solution Overview
Problem
Traditional routing schemes are inefficient under conditions of high density, high mobility, or rapidly changing link topologies, making it challenging to effectively deliver packets to devices within a geocast region in Geographic Addressing (GA) systems.
Innovation Solution
A Scalable Geographic Addressing Framework (SGAF) is introduced, utilizing a dual-tier arrangement comprising a georouter tier and a geocast tier, with bridge devices communicating across multiple tiers via mobile and wireless networks, employing bridging functions to determine packet transmission paths and ensuring secure delivery using shared session key encryption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional routing schemes are used, then network infrastructure is simple, but packet delivery efficiency deteriorates under high density, high mobility, or rapidly changing link topologies
Solution Approach 1:
The network is segmented into multiple hierarchical tiers (first tier with georouter and second tier with geocast devices). Bridge devices at the first tier perform routing functions using bridging functions, while devices at the second tier perform geocasting. This segmentation allows efficient packet delivery under high density and mobility conditions while maintaining manageable complexity through modular architecture.
Solution Approach 2:
The patent introduces a hierarchical dimension to the network architecture, organizing devices across multiple tiers rather than a flat single-tier structure. This dimensional change enables scalable packet delivery by distributing routing and geocasting functions across different hierarchical levels, improving efficiency without proportionally increasing overall system complexity.
2Adaptability or versatility
If a multi-tiered geographic addressing framework is implemented, then packet delivery scalability is improved, but network device complexity increases
Solution Approach 1:
Bridge devices are designed with multi-functionality, performing both routing operations (using bridging functions to determine packet transmission paths) and geocasting operations (transmitting packets to target regions). This universality allows the system to scale across multiple tiers while keeping individual device complexity manageable through role consolidation.
Solution Approach 2:
Bridge devices act as intermediaries between the first tier (georouter) and second tier (geocast devices). They receive packets from higher tiers, apply bridging functions to determine transmission paths, and forward packets to appropriate target regions. This intermediary role enables scalable multi-tiered operation while simplifying the complexity burden on individual devices.
3Area of stationary object
If geographic addressing packets are transmitted across multiple tiers, then delivery coverage is expanded, but transmission overhead increases
Solution Approach 1:
Bridging functions are applied in advance at bridge devices to determine optimal packet transmission paths before actual packet forwarding occurs. This preliminary action includes evaluating packet destination information against bridge device location and tier configuration, enabling efficient routing decisions that expand delivery coverage while minimizing unnecessary transmission overhead.
Data Source
AI summary
A bridge device at a first tier receives a geographic addressing packet destined for a target region containing a plurality of devices. The bridge device applies a bridging function using the geographic address packet to determine whether to transmit the geographic addressing packet. The bridging function utilizes certain information based on the geographic addressing packet. The bridge device determines to transmit the geographic addressing packet to a second tier based on the bridging function indicating that the geographic addressing packet should be transmitted to the second tier.