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Mobility-Aware Service Caching in Mobile Edge Computing for Internet of Things
1Beijing Key Laboratory of Intelligent Telecommunications Software and Multimedia, Beijing University of Posts and Telecommunications, Beijing 100876, China.
Sensors (Basel, Switzerland)
|January 26, 2020
Summary
This study introduces a mobility-aware service caching mechanism for mobile edge computing in sensor networks. It enhances local service delivery by predicting user locations, reducing response times and increasing local service access.
Area of Science:
- Computer Science
- Mobile Computing
- Network Engineering
Background:
- Mobile edge computing (MEC) addresses cloud computing latency but lacks service caching solutions for high-mobility environments.
- Existing MEC research primarily focuses on computation offloading, neglecting critical service caching strategies.
Purpose of the Study:
- To develop a mobility-aware service caching mechanism for sensor networks to maximize local edge-cloud service delivery.
- To predict user target locations accurately to minimize invalid service requests in high-mobility scenarios.
Main Methods:
- Proposed an idealized geometric model for predicting user movement target areas.
- Utilized frequent pattern mining on trajectory data to refine location predictions.
- Developed a service allocation algorithm for efficient base station forwarding.
- Implemented a back-propagation (BP) neural network for online popular service prediction and cache selection.
Main Results:
- The proposed service cache algorithm reduced average service response time by approximately 13.21%.
- Achieved an average increase of 15.19% in local service proportion compared to methods without mobility prediction.
Conclusions:
- The developed mobility-aware service caching mechanism effectively improves MEC performance in high-mobility sensor networks.
- Accurate user location prediction is crucial for optimizing service caching and enhancing user experience in edge computing environments.
Keywords:
internet of thingsmobile edge computingmobility sensormobility-awaresensor networksservice cacheservice response timeMore Related Videos
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