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Transcript of An Introduction Table Of Context Sensor Network PreviewRouting in Sensor NetworksMobility in Sensor...
![Page 1: An Introduction Table Of Context Sensor Network PreviewRouting in Sensor NetworksMobility in Sensor Networks Structure and characteristics of nodes and.](https://reader030.fdocuments.us/reader030/viewer/2022032804/56649e4d5503460f94b43b59/html5/thumbnails/1.jpg)
WIRELESS SENSOR NETWORKS An Introduction
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Table Of Context
Sensor Network Preview
Routing in Sensor Networks
Mobility in Sensor Networks
•Structure and characteristics of nodes and data flow.
•Protocols and Algorithms
•Different types of mobility
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SENSOR NETWORKS PREVIEW
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Sensor Networks Preview
A wireless sensor network (WSN) is a wireless network consisting of spatially distributed autonomous devices using sensors to cooperatively monitor physical or environmental conditions, such as temperature, sound, vibration, pressure, motion or pollutants, at different locations
•Definition•Application•Design Factors
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Sensor Nodes
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They are used in commercial and industrial applications to monitor data that would be difficult or expensive to monitor using wired sensors.
ApplicationMilitary
Environment
Health Care
Home
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Design Factors
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Fault Tolerant
Scalability
Production Cost
Tech Constraint
Topology Stability
Power Consumption
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ROUTING IN SENSOR NETWORKS
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Routing in Sensor Networks
•Characteristics•Routings
• Having no specific address, we can not use Internet Protocol.
•Special data flow model
•Redundant data
•Lack of power, energy, memory and processing, needs management.
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Data Centric
Network Flow Model
Location Based
Hierarchical
Routing Protocols
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An Example
B
A
S E
F
H
C
G
I
Represents a node that has received data for D from S
D
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Continued.
B
A
S E
F
H
C
G
I
Represents transmission
Broadcast transmission
D
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Continued.
B
A
S E
F
H
C
G
I
Represents links on Reverse Path
D
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Continued.
B
A
S E
F
H
DC
G
I
• Node C receives from G and H, but does not forward it again, because node C has already forwarded once
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Continued.
B
A
S E
F
H
DC
G
I
Represents links on path
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MOBILITY IN SENSOR NETOWRKS
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Controlled Mobility
Mobile Object
HW or SW Mobility
Semi Fault Mobility
Mobility Categories
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Controlled Mobility• Replacement
• Adaptive Sampling
• Network Repairing
• Power Gain
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Mobile Object
• Central Node Mobility
• Event Mobility
• Base Node Mobility
• Full Node Mobility
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Hardware Software Mobility
• Code Infection:
Using a virtual machine with high level instructions.
• Software Agent:
An agent spreads in network and executes its
duties on
every single node.
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Semi Fault Mobility
• Obstacle Movement
• Node Failure
Both made graph disconnected.
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SARA MAHDAVI HEZAVEIAMIRHOSEIN SHANTIA
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[AKY02] L. F. AKYILDIZ W. SU, Y. SANKARASUBRAMANIAM, E. CAYIRCI., “WIRELESS SENSOR NETWORKS: A SURVEY”, COMPUTER
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[MIN01] R. MIN, ET AL., “LOW POWER WIRELESS SENSOR NETWORKS", IN PROCEEDINGS OF INTERNATIONAL CONFERENCE
ON VLSI DESIGN, BANGALORE, INDIA, JANUARY 2001.
[PAT06] A. PATOOGHI, M. FAZELI, “A SURVEY ON ROUTING ALGORITHMS IN WIRELESS SENSOR NETWORKS,” TECHNICAL
REPORT, DEPENDABLE SYSTEMS LABORATORY, SHARIF UNIVERSITY OF TECHNOLOGY, 2006.
[RAB00] J.M. RABAEY, ET AL., “PICORADIO SUPPORTS AD HOC
ULTRA LOW POWER WIRELESS NETWORKING," IEEE COMPUTER, VOL. 33, PP. 42-48, JULY 2000.
[TIL02] S. TILAK ET AL., “A TAXONOMY OF WIRELESS MICROSENSOR NETWORK MODELS,” IN ACM MOBILE COMPUTING
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