Node Placement Accuracy in Multihop Wireless Networks
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Solution Overview
Problem
Current methods for deploying nodes in multihop wireless networks are inefficient due to inaccuracies and high costs associated with simulation analyses for determining optimal node layouts, which increases the risk of interference and attenuation in communication paths between field nodes and base nodes.
Innovation Solution
A method and system that involves broadcasting a message to determine the suitability of a node's location by counting and type of responses, selecting time offsets for transmission, and using a counter to indicate whether the location meets predetermined criteria, ensuring sufficient communication paths to a base node.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If simulation analysis is used to determine optimal node layouts, then node placement accuracy is improved, but time consumption and cost increase significantly
Solution Approach 1:
The patent replaces expensive, time-consuming simulation analyses with a simple, inexpensive message-counting method. Each node broadcasts a message and counts responses to determine optimal placement, eliminating the need for complex simulations while achieving sufficient accuracy for deployment decisions.
Solution Approach 2:
The patent substitutes complex simulation-based mechanical analysis with a simple communication-based counting mechanism. Instead of performing detailed simulation analyses, nodes use message broadcasting and counting to determine placement suitability, dramatically reducing computational overhead and deployment time.
2Reliability
If simulation analysis is used to determine optimal node layouts, then communication reliability is improved, but deployment cost increases
Solution Approach 1:
The patent uses inexpensive message broadcasts and counters instead of expensive simulation software and computational resources. This approach achieves sufficient communication reliability assessment without the high costs associated with detailed simulation analyses, making deployment more economically viable.
Solution Approach 2:
The patent enables nodes to self-assess their placement suitability by counting messages from neighboring nodes. Each node independently determines whether its location provides sufficient communication paths without requiring external simulation analysis, reducing deployment costs while maintaining reliability.
3Ease of operation
If nodes are deployed without sufficient path redundancy, then deployment simplicity is improved, but communication reliability deteriorates due to interference and attenuation
Solution Approach 1:
The patent performs preliminary assessment of path redundancy during the deployment phase itself. Nodes count messages from neighboring nodes before finalizing their placement, ensuring sufficient communication paths are established upfront rather than requiring complex post-deployment adjustments or simulations.
Solution Approach 2:
The patent implements a feedback mechanism where nodes broadcast messages and count responses to assess their placement suitability. This real-time feedback allows nodes to verify sufficient path redundancy exists before committing to their deployment location, ensuring communication reliability without complicating the deployment process.
Data Source
AI summary
In a network installation method and system, a first message is broadcast, a number of second messages received in response to the first message is counted and/or a type of at least one of the second messages is determined, and it is determined whether a location of a first node of a network is suitable based on the determined number of received second messages and/or the determined type of received second message(s).


