Multihop Network Routing Adapted to Electromagnetic Conditions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In multi-hop networks, there is a need to limit or minimize areas with high electromagnetic field power to avoid interference with other transmissions and potential health effects, while also ensuring electromagnetic compatibility and controlling electromagnetic disturbances.
Innovation Solution
A routing method that determines electromagnetic field values at nodes and selects or deselects them based on these values relative to predefined thresholds, allowing for adaptive routing that minimizes high electromagnetic field zones, using sensors or predictive methods to assess electromagnetic conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If nodes are selected for routing without considering electromagnetic field values, then routing simplicity is maintained, but electromagnetic disturbances and interference increase
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing electromagnetic field values for each node before routing decisions are made. Each node obtains its electromagnetic field value in advance (step a/), and this information is incorporated into the routing table or routing metrics beforehand. When a route needs to be determined, the pre-computed electromagnetic field data is already available, allowing quick selection of nodes with acceptable electromagnetic characteristics without adding complex real-time calculations to the routing process.
Solution Approach 2:
The patent implements dynamics by making the routing selection adaptive to electromagnetic conditions. Nodes are dynamically selected or deselected based on their electromagnetic field values relative to threshold criteria (step c/). The routing protocol adjusts its behavior according to the electromagnetic environment, allowing the network to adapt to changing electromagnetic conditions while maintaining relatively simple routing logic through the use of predefined thresholds and metrics.
2Reliability
If nodes with high electromagnetic field values are used for routing, then network coverage and connectivity are maximized, but interference with other transmissions and health effects increase
Solution Approach 1:
The patent applies local quality by evaluating and selecting nodes based on their local electromagnetic field characteristics. Each node's electromagnetic field value is obtained locally (step a/), and routing decisions are made based on these local measurements compared against threshold values (steps b/ and c/). This allows the network to identify and prefer nodes with acceptable electromagnetic emissions in specific locations, ensuring that high-traffic routing paths avoid nodes that generate excessive electromagnetic interference while maintaining network connectivity.
3Adaptability or versatility
If electromagnetic field threshold criteria are strictly applied in node selection, then electromagnetic compatibility is improved, but the number of available routing nodes decreases
Solution Approach 1:
The patent applies parameter changes by introducing electromagnetic field values as an additional parameter in the routing decision process. The electromagnetic field value (obtained in step a/) is combined with existing routing parameters such as hop count, bandwidth, and delay to form a composite routing metric. This allows the routing protocol to balance electromagnetic compatibility requirements with routing efficiency by adjusting the weight or threshold of the electromagnetic parameter alongside other performance metrics, ensuring both EMC compliance and acceptable routing productivity.
Data Source
Figure 1~2
Figure 3
Figure 4A~4C
AI summary
The invention relates to a method for routing in a multihop network that includes, for at least one multihop network node (N1, , N7): a/ obtaining a value of an electromagnetic field (Et, Bt) near said node; b/ predetermining a ratio between said obtained value and a predefined electromagnetic field threshold value (EM, BM); c/ using the predetermined ratio to optionally select said node as a routing node for at least one message in the multihop network.