symmetric coherent link degree, adaptive throughput-transmission power for wsn
TRANSCRIPT
Symmetric Coherent Link Degree,Adaptive Throughput-Transmission Power for WSN
Konstantinos Chantzis, Dimitrios Amaxilatis,Ioannis Chatzigiannakis, Jose RolimComputer Technology Institute and Press ”Diophantus” Patras, GreeceUniversity of Geneva Geneva, Switzerland
SCLD-A2TP DCOSS 2014
Introduction
The problem
I communication between WSN nodes could be problematic
I communication links suffer from quality, symmetry and noise
I high transmission power cause more trouble than help
I high transmission rates degrade communication
SCLD-A2TP DCOSS 2014
Introduction
The problem
I communication between WSN nodes could be problematic
I communication links suffer from quality, symmetry and noise
I high transmission power cause more trouble than help
I high transmission rates degrade communication
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
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
I show only a part of picture
I no globally suitable thresholds
I 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
I Combine multiple metrics
I Detect temporal characteristics
I User/Application defined thresholds
I 2 degrees of adaptation (power and transmission rate)
I Provide useful information to higher protocols
I Focus on real hardware and applications
SCLD-A2TP DCOSS 2014
Design
Design Concept
I Combine multiple metrics
I Detect temporal characteristics
I User/Application defined thresholds
I 2 degrees of adaptation (power and transmission rate)
I Provide useful information to higher protocols
I Focus on real hardware and applications
SCLD-A2TP DCOSS 2014
Design
Design Concept
I Combine multiple metrics
I Detect temporal characteristics
I User/Application defined thresholds
I 2 degrees of adaptation (power and transmission rate)
I Provide useful information to higher protocols
I Focus on real hardware and applications
SCLD-A2TP DCOSS 2014
Design
Design Concept
I Combine multiple metrics
I Detect temporal characteristics
I User/Application defined thresholds
I 2 degrees of adaptation (power and transmission rate)
I Provide useful information to higher protocols
I Focus on real hardware and applications
SCLD-A2TP DCOSS 2014
Design
Design Concept
I Combine multiple metrics
I Detect temporal characteristics
I User/Application defined thresholds
I 2 degrees of adaptation (power and transmission rate)
I Provide useful information to higher protocols
I Focus on real hardware and applications
SCLD-A2TP DCOSS 2014
Design
Design Concept
I Combine multiple metrics
I Detect temporal characteristics
I User/Application defined thresholds
I 2 degrees of adaptation (power and transmission rate)
I Provide useful information to higher protocols
I Focus on real hardware and applications
SCLD-A2TP DCOSS 2014
Design
Symmetric and Coherent Links
Bidirectional links with minimized message losses.
Requirements:
I Quality
I Symmetry
I Stability
Metrics:
I PRR and inv PRR
I Trust and inv Trust
I Dmin and Dmax
SCLD-A2TP DCOSS 2014
Design
Symmetric and Coherent Links
Bidirectional links with minimized message losses.
Requirements:
I Quality
I Symmetry
I Stability
Metrics:
I PRR and inv PRR
I Trust and inv Trust
I Dmin and Dmax
SCLD-A2TP DCOSS 2014
Design
Phase 1
SCLD-A2TP DCOSS 2014
Design
Phase 2
SCLD-A2TP DCOSS 2014
Implementation
SCLD Heuristics
I Individualistic
I Altruistic
I Balanced
I Hybrid (individualistic/altruistic)
I Hybrid+ (individualistic/balanced)
SCLD-A2TP DCOSS 2014
Real World Evaluation
General Settings
I 60 monitoring phases of 30seconds,
I Trust 3 (ranges from 0 to 6)
I SCLD 4 to 6 neighbors
I PRR over 70%,
I 1s fixed beacon rate for the1st daemon,
I 100 to 2s for the 2nd daemonwith a 50ms step,
I −30db to 0db transmissionpower with −6db step,
SCLD-A2TP DCOSS 2014
Real World Evaluation
General Settings
I 60 monitoring phases of 30seconds,
I Trust 3 (ranges from 0 to 6)
I SCLD 4 to 6 neighbors
I PRR over 70%,
I 1s fixed beacon rate for the1st daemon,
I 100 to 2s for the 2nd daemonwith a 50ms step,
I −30db to 0db transmissionpower 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
Real World Evaluation
Hybrid+
SCLD-A2TP DCOSS 2014
Thank You!
SCLD-A2TP DCOSS 2014