The document proposes a generic architecture called IoTBed for sharing Internet of Things (IoT) testbed resources. IoTBed allows owners of small IoT device testbeds to rent their resources to users through a centralized controller. This overcomes issues with existing testbeds which are specific, lack resource allocation frameworks, and do not provide incentives. IoTBed features a reputation and incentive system to manage resource sharing. Simulations showed IoTBed can satisfy experiments requiring diverse IoT devices across different locations.

1. SECuRE and Trustworthy
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IoTbed: A Generic Architecture for Testbed as a
Service for Internet of Things-based Systems
Authors
Mahmud Hossain, Shahid Noor, Yasser Karim and Ragib Hasan
{mahmud, shaahid, yasser, ragib}@uab.edu
SECuRE and Trustworthy computing Lab (SECRETLab)
University of Alabama at Birmingham
Presenter: Mahmud Hossain, PhD Student, Dept. of Computer and Information Sciences,
UAB
http://secret.cis.uab.edu

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Internet of Things: A Pervasive Network
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 A programmable world
 Convergence platform for M2M, RFID,
and Ubiquities computing
 Everyday objects are interconnected
 Objects are smart enough to make
decision

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Scenario 3
A diverse and
heterogenous network
for testing

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Availability of Testbeds
 IoT networks are heterogeneous.
 Constructing an equipped testbed is difficult and expensive.
 Existing solutions are specific.
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Existing Testbeds
 Fit Iot-Lab
 A very large scale open testbed, is composed of more than 2700 hundred
low-power connected wireless nodes and 117 mobile robots available for
experimenting with large-scale wireless IoT technologies.
 Do not provide framework for resource allocation and registration.
 FIESTA-IoT
 It is a concept architecture for interconnecting and sharing such testbeds
among stakeholders.
 Facilitates resource allocation and registration processes.
 Reputation scheme and Incentive framework are not available.
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Solution
How can we resolve the scarcity of IoT testbeds ?
 Most of the researchers, enthusiasts and entrepreneurs have
their own IoT devices in small scale.
 Besides industry leaders leader also have their setup.
 A common infrastructure to share all these resources with
each other.
 Proper provisioning and incentive model.
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Our Approach : IoTBed
 A generic architecture for Testbed as a Service using smart devices
located in the edge networks.
 Provides an incentive and contract mechanism which allows building
and operating such a system in an economically feasible manner.
 Smart device owners develop testbeds in their proximal networks.
IoTBed provides a mechanism to rent out these testbeds to users for
experiments.
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System Overview 8

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Architecture 9
Management and Operation Console
Testbed Controller
Site Coordinator
Gateway
Constrained Applications Running on IoT Nodes
Scheduling
Validation
Data
Management
Configuration
Resource
Manager
Incentive
Management
Experiment Management Resource Manager
Docker
Container
Experiment
Monitoring and
Control
Experiment
Data
Experiment
Executor

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Component Details
 Management and Operation Control (MOC):
 Enables a testbed client to explore resources provided by the IoTbed
Controller.
 Provides interfaces to submit experiment specifications and to upload
application binaries.
 Resource Manager:
 Monitors and collects available resources in the Testbeds.
 Provides information about available and allocated resources in the
system.
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Component Details
 Experiment Manager:
 Implements five components:
 Validation Service
 Configuration Service
 Scheduling Service
 Experiment Executor
 Data Management Service
 Reputation and Incentive Framework :
 Manages Reputation Points of IoT nodes and Gateways.
 updates the Reputation Point (RP) of a device once the experiment that the
device is currently participating in is completed.
 Also offers monetary incentives to the devices when an experiment is completed.
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Experiment Submission Process
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IoTbed Message Format
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Experiment Specification

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Experimental Environment
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Experimental Setup
Experimental Network

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Experimental Environment
 IoT devices were simulated using Cooja.
 Testbed Controller was implemented using NodeJS.
 The IoTbed Controller was running as a Web Service on a
Virtual Machine located in Amazon Cloud (AWS-VM).
 The Site Coordinator was a Java application running on a
Desktop PC.
 The Gateway application was implemented using Shell Script
and was running on a Laptop.
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Simulation Results 16
Request for a single type of IoT Device Request for 5 different types of IoT Device
Request for 10 different types of IoT Device

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In compare with Existing Solutions
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IoTbed satisfies all 9 criteria, while others satisfy at most 6 of them.

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Thank You
Q&A
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