Orbit-Aware Routing for Dynamic Interplanetary Communication Links
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Solution Overview
Problem
Existing network routing algorithms for terrestrial and extraterrestrial communication lack flexibility and fail to account for dynamic changes in communication link availability, leading to disruptions and inefficiencies in space-based missions.
Innovation Solution
An orbit-aware network routing system that dynamically updates communication paths based on continuously obtained orbital parameters of nodes, allowing for real-time adjustments to ensure optimal data transfer and minimize disruptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed performance routing algorithm is used, then the routing is simple to implement, but it cannot adapt to dynamic changes in communication link availability
Solution Approach 1:
The routing algorithm transitions from static to dynamic by continuously obtaining orbital parameters and recalculating communication paths in real-time. The system dynamically adjusts routing decisions based on current orbital positions and predicted link availability, making the routing adaptable to changing space-based communication conditions.
Solution Approach 2:
The system implements feedback by continuously monitoring orbital parameters and using this information to update routing decisions. The routing algorithm receives feedback about actual link performance and orbital changes, then adjusts paths accordingly to maintain optimal communication despite dynamic conditions.
2Reliability
If real-time orbital parameter updates are implemented, then communication reliability is improved, but computational requirements and system complexity increase
Solution Approach 1:
The system performs preliminary calculations by obtaining and processing orbital parameters in advance to predict future communication link availability. By pre-calculating potential routing paths based on orbital mechanics, the system prepares routing decisions before communication disruptions occur, improving reliability without requiring complex real-time reactions.
Solution Approach 2:
The routing system serves itself by autonomously obtaining orbital parameters, calculating link availability, and determining optimal paths without external intervention. The system uses publicly available orbital data and standard astronomical calculations to self-manage the routing decisions, reducing the need for complex external control infrastructure.
3Productivity
If dynamic path optimization is performed continuously, then data transfer efficiency is maximized, but processing time and energy consumption increase
Solution Approach 1:
Instead of continuous optimization, the system performs path optimization periodically based on orbital event triggers such as link establishment or significant orbital position changes. This periodic approach maintains high data transfer efficiency by updating paths at meaningful intervals while significantly reducing processing energy consumption compared to continuous optimization.
Solution Approach 2:
The system changes its optimization frequency based on orbital parameters and communication conditions. When orbital positions are stable and links are reliable, optimization occurs less frequently. When orbital changes cause link disruptions, the system increases optimization frequency, thus adapting energy consumption to actual communication needs rather than maintaining constant high processing levels.
Data Source
AI summary
A method of routing communication among nodes and systems of an interplanetary network on an ad-hoc basis is described herein. For example, the communication routing described herein may not be pre-determined or static, but rather determined dynamically on a periodic basis, as transmission conditions change, as nodes are added or removed from the interplanetary network, periodically, and/or the like. The interplanetary network may include one or more nodes that have static and/or dynamic states. A node can include any extraterrestrial object or communication relay. The interplanetary network may also include one or more ground stations, which can include communication equipment (e.g., antennas, radar, transmission towers, etc.) located on Earth. To enable the ad-hoc communication routing, a ground station system and/or another processing device can continuously or periodically obtain orbital parameters from one or more nodes in the interplanetary network and generate updated contact plans.