Symmetric Coherent Link Degree, Adaptive Throughput-Transmission Power for WSN
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This document proposes an adaptive algorithm called Symmetric Coherent Link Degree with Adaptive Transmission Power (SCLD-A2TP) to address issues with wireless sensor network (WSN) communication links. SCLD-A2TP adapts both transmission power and rate based on link quality metrics to maintain symmetric and coherent links. It operates in two phases: 1) selecting high-quality symmetric links and 2) adapting power and rate using different heuristics like altruistic, balanced, and hybrid approaches. The algorithm is evaluated over 60 monitoring periods in a real WSN testbed and shown to effectively maintain link quality.
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
- 19. Design Phase 1 SCLD-A2TP DCOSS 2014
- 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