collaboration between wireless sensor networks using information exchange

Collaboration Between Wireless Sensor Networks using

Information Exchange

A PhD proposal

Gabriel Martins Dias

Network Technologies and Strategies Research Group

Department of Information and Communication Technologies

September, 2013

Gabriel Martins Dias PhD Proposal

Outline

1 Why?

2 How?

3 When?


Why? Motivation

Motivation

Life expectancy: 3-5 years Life expectancy: 6-10 years

Synergy


Why? Motivation

Motivation

A wireless sensor node


Why? Motivation

Motivation

A Wireless Sensor Network (WSN)


Why? Motivation

Motivation

Many WSNs


Why? Scenarios

ScenariosFire detection


Why? Scenarios

ScenariosRoad traffic and pollution


Why? Scenarios

Scenarios

• Fire detection

• Road traffic and pollution

• Intelligent transportation systems

• Snow monitoring

• River monitoring

• Smart animal farming

• Structural health monitoring network

• Detection of liquid in a room

• Ultraviolet radiation monitors

• ...


Why? Challenges

Challenges

• To join WSNs that were not necessarily built to work together

• To predict events instead of detect them

• To increase the WSNs’ lifetime

• To create a self-managing architecture


Why? Challenges

Outline

1 Why?MotivationScenariosChallenges

2 How?

3 When?


How?

Outline

1 Why?

2 How?

3 When?


How? Proposed Architecture

Proposed Architecture

Multiple WSNs




Multiple WSNs covering different areas




Enhanced Gateways (EGs)




Communication between EGs


How? Autonomic Architecture

Existing Work

• Architectures• Ambient Networks• Observer Networks• Autonomic Computing

• Collaboration• Inter-node communication

• Self-organization

• Resource sharing

• Cooperation

• Exporting information• Inter-WSNs



Autonomic Computing



Monitor



Analyze

“A person that has only one watch always knows the time.

The one that has two watches does not.”

— My Dad



Analyze

• Trustworthiness

• Inference• Threshold-based• Pattern-matching



Plan

• Quality of measurements

• Network requirements• Event-driven• Query-driven• Continuous• Hybrid



Schedule

• When apply the changes?


How? Contributions

Contributions

• New paradigm for collaboration in WSNs• Data mining

• Data filtering

• Data correlation

• Quality of measurements

• Metrics

• Plan evaluation


How? Performance Evaluation

Performance EvaluationReal data

Source: Machine Learning Group at the Universit Libre de Bruxelles



Performance EvaluationReal data

Node #1: Temperature and relative humidity



Performance EvaluationScenario

General scenario




General scenario with only 2 WSNs




General scenario with only 1 WSN using external information




Simulated scenario



Performance EvaluationTests

Flowchart in EG (B)



TestsResults

• 2 Plans

Number of active nodes Interval between transmissions



ScenarioChanging active nodes

Plan A - half of the nodes




Plan B - half of the nodes




Plan C - all the nodes



TestsResults

• 2 Plans

Number of active nodes Interval between transmissions



Outline

1 Why?

2 How?Proposed ArchitectureExisting WorkAutonomic ArchitectureContributionsPerformance Evaluation

3 When?


When?

Outline

1 Why?

2 How?

3 When?


When? Next Steps

Next Steps

Make simulations with multiple interconnected WSNs - 2 months


When? Next Steps

Next Steps

Data mining - 4 months


When? Next Steps

Next Steps

Quality of Measurements - 4 months


When? Next Steps

Next Steps

Data filtering - 3 months


When? Next Steps

Next Steps

Plan scheduling - 1 month


When? Next Steps

Next Steps

Complete results from simulations - 2 weeks


When? Next Steps

Next Steps

Details about the architecture outside the WSNs - 2 weeks


When? Next Steps

Next Steps

Real world implementation - 5 months


When? Next Steps

Next Steps

Thesis publication - 3 months


When? Next Steps

Outline

1 Why?MotivationScenariosChallenges

2 How?Proposed ArchitectureExisting WorkAutonomic ArchitectureContributionsPerformance Evaluation

3 When?Next Steps


collaboration between wireless sensor networks using information exchange

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