Efficient Edge-Cloud Publish/Subscribe Broker Overlay Networks to Support Latency-Sensitive Wide-Scale IoT Applications

Clicks: 202
ID: 112548
2019
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Abstract
Computing services for the Internet-of-Things (IoT) play a vital role for widespread IoT deployment. A hierarchy of Edge-Cloud publish/subscribe (pub/sub) broker overlay networks that support latency-sensitive IoT applications in a scalable manner is introduced. In addition, we design algorithms to cluster edge pub/sub brokers based on topic similarities and geolocations to enhance data dissemination among end-to-end IoT devices. The proposed model is designed to provide low delay data dissemination and effectively save network traffic among brokers. In the proposed model, IoT devices running pub/sub client applications periodically send collected data, organized as a hierarchy of topics, to their closest edge pub/sub brokers. Then, the data are processed/analyzed at edge nodes to make controlling decisions promptly replying to the IoT devices and/or aggregated for further delivery to other interested edge brokers or to cloud brokers for long-term processing, analysis, and storage. Extensive simulation results demonstrate that our proposal achieves the best data delivery latency compared to two baseline schemes, a classical Cloud-based pub/sub scheme and an Edge-Cloud pub/sub scheme. Considering the similar Edge-Cloud technique, the proposed scheme outperforms PubSubCoord-alike in terms of relay traffic ratio among brokers. Therefore, our proposal can adapt well to support wide-scale latency-sensitive IoT applications.
Reference Key
pham2019symmetryefficient Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Van-Nam Pham;VanDung Nguyen;Tri D. T. Nguyen;Eui-Nam Huh;Pham, Van-Nam;Nguyen, VanDung;Nguyen, Tri D. T.;Huh, Eui-Nam;
Journal Symmetry
Year 2019
DOI
10.3390/sym12010003
URL
https://doi.org/10.3390/sym12010003
Keywords
iot applications broker-based publish/subscribe topic similarity geolocation awareness latency-sensitive distributed pub/sub systems iot applications broker-based publish/subscribe topic similarity geolocation awareness latency-sensitive distributed pub/sub systems

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