Symmetric Coherent Link Degree, Adaptive Throughput-Transmission Power for WSN

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Dimitrios Amaxilatis

Science Technology Business

Introduction
The problem
communication between WSN nodes could be problematic
communication links suﬀer from quality, symmetry and noise
high transmission power cause more trouble than help
high transmission rates degrade communication
SCLD-A2TP DCOSS 2014

Introduction
Common Methods
Individual Link Based Algorithms
PCBL, ATPC, OD/TPC, ART
SCLD-A2TP DCOSS 2014

Introduction
Common Methods
Individual Link Based Algorithms
PCBL, ATPC, OD/TPC, ART
Degree Based Based Algorithms
LINT, LMA, LMN, DTPC, SCLD-ATP
SCLD-A2TP DCOSS 2014

Introduction
RSSI, LQI and PRR
show only a part of picture
no globally suitable thresholds
huge temporal characteristics
We need adaptation
SCLD-A2TP DCOSS 2014

Why Adaptive?
Connectivity graph
Constant Power setting versus Adaptive
SCLD-A2TP DCOSS 2014

Why Adaptive?
Transmission Power
Constant Powert setting versus Adaptive
SCLD-A2TP DCOSS 2014

Why Adaptive?
SCLDs
Constant Powert setting versus Adaptive
SCLD-A2TP DCOSS 2014

Design
Design Concept
Combine multiple metrics
SCLD-A2TP DCOSS 2014

Design
Design Concept
Combine multiple metrics
Detect temporal characteristics
SCLD-A2TP DCOSS 2014

Design
Design Concept
Combine multiple metrics
Detect temporal characteristics
User/Application deﬁned thresholds
SCLD-A2TP DCOSS 2014

Design
Design Concept
Combine multiple metrics
Detect temporal characteristics
User/Application deﬁned thresholds
2 degrees of adaptation (power and transmission rate)
SCLD-A2TP DCOSS 2014

Design
Symmetric and Coherent Links
Bidirectional links with minimized message losses.
Requirements:
Quality
Symmetry
Stability
SCLD-A2TP DCOSS 2014

Design
Symmetric and Coherent Links
Bidirectional links with minimized message losses.
Requirements:
Quality
Symmetry
Stability
Metrics:
PRR and inv PRR
Trust and inv Trust
Dmin and Dmax
SCLD-A2TP DCOSS 2014

Implementation
SCLD Heuristics
Individualistic
Altruistic
Balanced
Hybrid (individualistic/altruistic)
Hybrid+ (individualistic/balanced)
SCLD-A2TP DCOSS 2014

Real World Evaluation
General Settings
60 monitoring phases of 30
seconds,
Trust 3 (ranges from 0 to 6)
SCLD 4 to 6 neighbors
PRR over 70%,
SCLD-A2TP DCOSS 2014

Real World Evaluation
General Settings
60 monitoring phases of 30
seconds,
Trust 3 (ranges from 0 to 6)
SCLD 4 to 6 neighbors
PRR over 70%,
1s ﬁxed beacon rate for the
1st daemon,
100 to 2s for the 2nd daemon
with a 50ms step,
−30db to 0db transmission
power with −6db step,
SCLD-A2TP DCOSS 2014

Real World Evaluation
Altruistic
SCLD-A2TP DCOSS 2014

Real World Evaluation
Balanced
SCLD-A2TP DCOSS 2014

Real World Evaluation
Hybrid
SCLD-A2TP DCOSS 2014

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Symmetric Coherent Link Degree, Adaptive Throughput-Transmission Power for WSN

1. Symmetric Coherent Link Degree, Adaptive Throughput-Transmission Power for WSN Konstantinos Chantzis, Dimitrios Amaxilatis, Ioannis Chatzigiannakis, Jose Rolim Computer Technology Institute and Press ”Diophantus” Patras, Greece University of Geneva Geneva, Switzerland SCLD-A2TP DCOSS 2014

2. Introduction The problem communication between WSN nodes could be problematic communication links suﬀer from quality, symmetry and noise high transmission power cause more trouble than help high transmission rates degrade communication SCLD-A2TP DCOSS 2014

3. Introduction The problem communication between WSN nodes could be problematic communication links suﬀer from quality, symmetry and noise high transmission power cause more trouble than help high transmission rates degrade communication SCLD-A2TP DCOSS 2014

4. Introduction Common Methods Individual Link Based Algorithms PCBL, ATPC, OD/TPC, ART SCLD-A2TP DCOSS 2014

5. Introduction Common Methods Individual Link Based Algorithms PCBL, ATPC, OD/TPC, ART Degree Based Based Algorithms LINT, LMA, LMN, DTPC, SCLD-ATP SCLD-A2TP DCOSS 2014

6. Introduction RSSI, LQI and PRR show only a part of picture no globally suitable thresholds huge temporal characteristics We need adaptation SCLD-A2TP DCOSS 2014

7. Why Adaptive? Connectivity graph Constant Power setting versus Adaptive SCLD-A2TP DCOSS 2014

8. Why Adaptive? Transmission Power Constant Powert setting versus Adaptive SCLD-A2TP DCOSS 2014

9. Why Adaptive? SCLDs Constant Powert setting versus Adaptive SCLD-A2TP DCOSS 2014

10. Design Design Concept Combine multiple metrics SCLD-A2TP DCOSS 2014

11. Design Design Concept Combine multiple metrics Detect temporal characteristics SCLD-A2TP DCOSS 2014

12. Design Design Concept Combine multiple metrics Detect temporal characteristics User/Application deﬁned thresholds SCLD-A2TP DCOSS 2014

13. Design Design Concept Combine multiple metrics Detect temporal characteristics User/Application deﬁned thresholds 2 degrees of adaptation (power and transmission rate) SCLD-A2TP DCOSS 2014

14. Design Design Concept Combine multiple metrics Detect temporal characteristics User/Application deﬁned thresholds 2 degrees of adaptation (power and transmission rate) Provide useful information to higher protocols SCLD-A2TP DCOSS 2014

15. Design Design Concept Combine multiple metrics Detect temporal characteristics User/Application deﬁned thresholds 2 degrees of adaptation (power and transmission rate) Provide useful information to higher protocols Focus on real hardware and applications SCLD-A2TP DCOSS 2014

16. Design Symmetric and Coherent Links Bidirectional links with minimized message losses. Requirements: Quality Symmetry Stability SCLD-A2TP DCOSS 2014

17. Design Symmetric and Coherent Links Bidirectional links with minimized message losses. Requirements: Quality Symmetry Stability Metrics: PRR and inv PRR Trust and inv Trust Dmin and Dmax SCLD-A2TP DCOSS 2014

18.

19. Design Phase 1 SCLD-A2TP DCOSS 2014

20.

21. Design Phase 2 SCLD-A2TP DCOSS 2014

22. Implementation SCLD Heuristics Individualistic Altruistic Balanced Hybrid (individualistic/altruistic) Hybrid+ (individualistic/balanced) SCLD-A2TP DCOSS 2014

23. Real World Evaluation General Settings 60 monitoring phases of 30 seconds, Trust 3 (ranges from 0 to 6) SCLD 4 to 6 neighbors PRR over 70%, SCLD-A2TP DCOSS 2014

24. Real World Evaluation General Settings 60 monitoring phases of 30 seconds, Trust 3 (ranges from 0 to 6) SCLD 4 to 6 neighbors PRR over 70%, 1s ﬁxed beacon rate for the 1st daemon, 100 to 2s for the 2nd daemon with a 50ms step, −30db to 0db transmission power with −6db step, SCLD-A2TP DCOSS 2014

25. Real World Evaluation Altruistic SCLD-A2TP DCOSS 2014

26. Real World Evaluation Balanced SCLD-A2TP DCOSS 2014

27. Real World Evaluation Hybrid SCLD-A2TP DCOSS 2014

28. Real World Evaluation Hybrid+ SCLD-A2TP DCOSS 2014

29. Thank You! SCLD-A2TP DCOSS 2014

Symmetric Coherent Link Degree, Adaptive Throughput-Transmission Power for WSN

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