The Introduction of Sensor-Cloud and Its Architecture, Applications and Approaches

Mao-Lin Li 2013/11/5

What is a Sensor-Cloud?

Sensors:Limited and are specific to their applications/services when linked very closely to them.

Clouds:Computation power, scalarbility...

The Concept of Sensor-Cloud

● A new paradigm for cloud computing that uses the physical sensors to accumulates its data and transmit all sensor data into a cloud computing infrastructure.

● Service instance:○ virtual sensors○ Created by service templates

● IT resources:○ CPU, disk storage

Why we need Sensor-Cloud?

● Some featured cannot be obtained by normal tools○ Highly sensitive data

■ Structured health and envirment based monitoring

○ Data scalability, performance, programmability or accessibility.

Advantages of Sensor Cloud

Sensor-Cloud

Analyze

Scalability

Collaboration

Visualiztion

Free provisioning of increased data

storage and processing power

Dynamic provisioning of

servicesMulti-tenancy

Reduced cost and higher gain

AutomationFlexibility

Agility of services

Resource optimization

Quick Response

Handling huge data

Impoving acceesiblity

Save money

Service Creation and Renovation Capability in Several Applications

Ubiquitous Healthcare

Environmental Monitoring for

emergency/disaster detection

Telematics

Microsoft Health-Vault

Google Health

Agriculture and irrigation Control

(Field server sensors)

Transportation and Vehicular Traffic

Applications

Earth Observation

Sensor-Cloud as Layered Structured Approach

1. User and Application Phase● Deals with the users and their

relevant applications.

2. Sensor Cloud and Virtualization Phase● Deals with virtualization of the physical

sensors.

3. Template Creation and Tangible Sensors Phase

● Copes with the service templaate creation and service catalog definition phase in form of catalog menu.

Multi-Service Provisioning on Multiple Platform● XML

○ standard data exchangeformat.

● Metadata:○ Type○ Specification○ Accurancy of intensity○ Exact location

Cloud-Sensor for Health Monitoring Applications

Issues and Challenges

● Designing issues● Engineering issues● Power issues● Reliability issues● Security and privacy support issues

Formal Modeling for Multi-Level Authentication in Snesor-Cloud Integration System

Motivation

● Presenting an authentication system by employing the multi-level authentication technique in securing the sensor data in cloud.

● Modeled the proposed system using Petri-nets

Multilevel Authentication Technique for Securing Sensor Data

Cloud Service Development Activities Cloud Service Provider

SaaS PaaS IaaS DSaaS

SA = Generate Multidimensional Service Authentication Password

TA = Generate Multidimensional Team Authentication Password

PA = Generate Multidimensional User Private Authentication

Password = Concatenating(SA, TA, PA)

Within Organization

Super Privileged

User

Special Privileged

User

Normal User

Authenticated organization in using cloud services

System ArchitectureBS

gateway

WSN Type1

BS

gateway

WSN Type2

Cloud Service Development Activities Cloud Service Provider

SaaS

PaaS IaaS DSa

aS

SA = Generate Multidimensional Service Authentication Password

TA = Generate Multidimensional Team Authentication Password

PA = Generate Multidimensional User Private Authentication

Password = Concatenating(SA, TA, PA)

Within Organization

Super Privileged User

Special Privileged User

Normal User

Authenticated organization in using cloud services

gateway

Proposed Algorithm

Sensors would process & route the data packets to CH

CH collects data packets and route it to the BS

The routed data would be collected by the BS and upload the information to the CS

CS acts as a repository to store the info & provides access only to authenticated users

If SA is authenticated

SA - Organization level PW generation - Authentication at level 0

TA - Team level PW generation - Authentication at level 1

If TA is authenticated

PA - User level PW generation - Authentication at level n

If PA is authenticated

Abort

F

F

FT

T

PW = Concatencate L0, L1… Ln

If PW is authenticated

Provide access to the sensor

End

T

FT

CH - Cluster headBS - Base stationCS - Cloud serverSA - Service authenticationTA - Team authenticationPA - Privilege authentication

System Modeling with Petri-Net

Conclusion

● The sensor-cloud architecture enables the data to be categorized, stored and processed in such a way that it becomes cost effective, timely available and easily accessible.

● A formal modeling approach to decribe authentication in sensor-cloud.

References

1. A survey on Sensor-Cloud: Architecture, Applications and Approaches

[International Journal of Distributed Sensor Networks Volume 2013]

2. Formal Modeling for Mult-Level Authentication in Sensor-Cloud Integration System

[International Journal of Applied Information Systems - 2012]