Wireless Data Packet Transmission Path Selection
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Solution Overview
Problem
Existing wireless network technologies face challenges in optimizing power consumption and reducing interference when transmitting data packets between devices capable of communicating over multiple radio access technologies in integrated communication environments, particularly in ad-hoc networks without a central node.
Innovation Solution
A method for determining the most power and performance-efficient transmission path by comparing power metrics for direct and alternative routes involving aggregation nodes using different radio access technologies, which can relay data packets to minimize overall power consumption and interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If direct transmission is used from first node to second node, then transmission speed is improved, but power consumption increases
Solution Approach 1:
The patent introduces aggregation nodes as intermediaries between the first node and second node. When direct transmission power exceeds the threshold, data packets are routed through one or more aggregation nodes that relay the data to the destination. This mediator approach reduces the transmission power required at each hop while maintaining acceptable transmission speed through multi-hop routing.
Solution Approach 2:
The transmission path is segmented into multiple hops through aggregation nodes rather than using a single direct link. The data transmission journey is divided into segments: first node to aggregation node(s), then aggregation node(s) to second node. This segmentation allows each transmission segment to use lower power levels, reducing overall power consumption while achieving the same end-to-end communication goal.
2Productivity
If direct transmission is used from first node to second node, then communication efficiency is improved, but interference increases
Solution Approach 1:
Aggregation nodes serve as intermediaries that spatially distribute the transmission signals. Instead of one high-power direct transmission, multiple lower-power transmissions occur through different spatial locations (first node to aggregation nodes, then aggregation nodes to second node). This spatial distribution reduces signal interference and collision probability in the wireless medium.
Solution Approach 2:
The communication path is segmented into multiple transmission legs, each operating at lower power levels. This segmentation reduces the peak interference level generated at any single point in the network, as each hop contributes less to the overall interference environment compared to a single high-power direct transmission.
3Use of energy by moving object
If relay transmission through aggregation nodes is used, then power consumption is reduced, but transmission delay increases
Solution Approach 1:
The system dynamically selects between direct transmission and relay transmission modes based on real-time conditions. The decision variable (transmission mode) changes dynamically according to the calculated power metric comparison. This dynamic adaptation allows the system to use relay transmission only when power savings justify the additional delay, optimizing the trade-off between power consumption and transmission delay.
Solution Approach 2:
The system changes the transmission parameter (number of hops) based on the power metric threshold comparison. When the direct transmission power metric exceeds the threshold, the system transitions to multi-hop transmission mode. This parameter change enables power savings while managing delay by only introducing additional hops when necessary based on the power efficiency criterion.
4Loss of energy
If relay transmission through aggregation nodes is used, then system power usage is reduced, but network complexity increases
Solution Approach 1:
The system employs feedback through power metric calculation and threshold comparison to automatically determine transmission mode. The first node calculates the power metric for direct transmission, compares it against the threshold, and feeds this information back into the transmission decision logic. This feedback mechanism simplifies the network operation by providing an automated, rule-based decision process rather than requiring complex centralized control or manual configuration.
Data Source
AI summary
The proposed technology generally relates to sending a data packet from a first node to a second node, wherein there is a direct link to the second node from the first node. The method comprises the steps of: determining a first power metric associated with transmitting the data packet from the first node to the second node on the direct link; when the determined first power metric is above a first power level then determining a first set of aggregation nodes, being within reach of the first node, wherein each aggregation node in the set is comprised in a respective alternative transmission path from the first node to the second node; for each aggregation node in the first set determining a second power metric associated with transmitting the data packet to from the first node to the second node via the aggregation node; selecting a transmission path for sending the data packet from the first node to the second node based on a comparison of the first power metric and the second power metric(s) and sending the packet on the selected transmission path. One aspect of the proposed technology relates to a method and ending a data packet from the first node to a second node as well as a corresponding device and computer program.