Research Article
A Scalable and Virtualized Testbed for IoT Experiments
@INPROCEEDINGS{10.4108/eai.28-9-2017.2273310, author={Ruichun Gu and Hongyu Zhang and Dong Pei and Junxing Zhang}, title={A Scalable and Virtualized Testbed for IoT Experiments}, proceedings={12th EAI International Conference on Testbeds and Research Infrastructures for the Development of Networks \& Communities}, publisher={EAI}, proceedings_a={TRIDENTCOM}, year={2018}, month={1}, keywords={iot wsn testbed virtualization scalability}, doi={10.4108/eai.28-9-2017.2273310} }- Ruichun Gu
Hongyu Zhang
Dong Pei
Junxing Zhang
Year: 2018
A Scalable and Virtualized Testbed for IoT Experiments
TRIDENTCOM
EAI
DOI: 10.4108/eai.28-9-2017.2273310
Abstract
With the rapid development of information technology, the Internet of Things (IoT) is getting more attentions, which has promoted a new wave of information and industrial tide. In order to reduce the CAPEX, OPEX and TIEX of IoT systems, before the deployment, people often evaluate IoT architectures, protocols, as well as configurations on testbeds. As physical resources of any testbed are limited, it is challenging to conduct large-scale IoT experiments. In this paper, we apply the virtualization technology to optimize an existing network testbed, adopt VMNet to emulate wireless sensors in the IoT experiment, and improve the scalability of the experiment to support large-scale IoT assessments. Our scheme leverages a multi-host collaborative with static multi-sink architecture to solve the bottleneck problem of the large-scale IoT emulation and multiple interpolation algorithms to supplement the time continuity and spatial integrity of the sensed data for enhanced fidelity of the IoT experiment. According to our experiments, the virtualized IoT testbed not only reduced the TIEX of IoT emulation sharply, but also enhanced the scalability of IoT experiments.