presentation bans
Post on 06-Nov-2015
13 Views
Preview:
TRANSCRIPT
-
Cleveland State university
Electrical and Computer Engineering
Architecture and Implementation of Biosensors
For Health Monitoring
Abou-Bakar M. Fofana
Abou.m.fofana@gmail.com
-
Architecture and Implementation of Biosensors
For Health Monitoring
1. Biosensors
2. Topology of a Wireless Body Sensors Area Networks
3. Architecture of a Wireless Body Sensors Area Networks
4. Wireless Communication Technology for Body Area Networks (BAN)
5. Power Consumption and Energy Scavenging
6. Security in the Body Area Network
7. Conclusion
-
Architecture and Implementation of Biosensors for Health Monitoring
1. Biosensors
2. Topology of a Wireless Body Sensors Area
Networks
3. Architecture of a Wireless Body Sensors
Area Networks
4. Wireless Communication Technology for
Body Area Networks (BAN)
5. Power Consumption and Energy
Scavenging
6. Security in the Body Area Network
7. Conclusion
Bio-: refers to biology
Sensors: small scale device
In the family of microsystem
Low power consumption
Used in many applications
Implantable and wearable
Figure1: Diagram of a sensor
-
Architecture and Implementation of Biosensors for Health Monitoring
1. Biosensors
2. Topology of a Wireless Body Sensors
Area Networks
3. Architecture of a Wireless Body Sensors
Area Networks
4. Wireless Communication Technology for
Body Area Networks (BAN)
5. Power Consumption and Energy
Scavenging
6. Security in the Body Area Network
7. Conclusion
Star networks
Mesh networks
Star-mesh hybrid networks
Cluster tree networks
-
Architecture and Implementation of Biosensors for Health Monitoring
1. Biosensors
2. Topology of a Wireless Body Sensors Area
Networks
3. Architecture of a Wireless Body Sensors
Area Networks
4. Wireless Communication Technology for
Body Area Networks (BAN)
5. Power Consumption and Energy
Scavenging
6. Security in the Body Area Network
7. Conclusion
Figure 2: Architecture of a Body Area Network
-
Architecture and Implementation of Biosensors for Health Monitoring
1. Biosensors
2. Topology of a Wireless Body Sensors Area
Networks
3. Architecture of a Wireless Body Sensors
Area Networks
4. Wireless Communication Technology for
Body Area Networks (BAN)
5. Power Consumption and Energy
Scavenging
6. Security in the Body Area Network
7. Conclusion
Bluetooth standard IEEE 802.15.1
Operate in the range 2400-2483.5 MHz Data rate 1-3Mbit/s RF range 10m Security 128 bit AES Architecture point to point Power consumption 100mw class1
ZigBee 802.15.4
Frequency band 2.4GHz Data rate 250Kbit/s Communication range >50m Security 128 bit AES Mesh, Multiple star 60mW
-
Architecture and Implementation of Biosensors for Health Monitoring
1. Biosensors
2. Topology of a Wireless Body Sensors Area
Networks
3. Architecture of a Wireless Body Sensors
Area Networks
4. Wireless Communication Technology for
Body Area Networks (BAN)
5. Power Consumption and Energy
Scavenging
6. Security in the Body Area Network
7. Conclusion
UWB Ultra Wide Band
Initially under standard P802.15.3a Real time location system High data rate: video streaming, wireless
monitoring. From 100-500Mbit/s
Low power transceivers: suitable for hospitals Approximately 2mW/Mbps
Wi-Fi 802.11 WLAN
High rate Power consumption higher Battery lifetime reduced Not suitable for BSN
Standard 802.15.6
Support many PHY layers-NB, UWB, HBC Use industrial scientific medical band Increase battery life Provide strong security
-
Architecture and Implementation of Biosensors for Health Monitoring
1. Biosensors
2. Topology of a Wireless Body Sensors Area
Networks
3. Architecture of a Wireless Body Sensors
Area Networks
4. Wireless Communication Technology for
Body Area Networks (BAN)
5. Power Consumption and Energy
Scavenging
6. Security in the Body Area Network
7. Conclusion
Primary design challenges
Hardware: design new PHY layers, efficient architecture
Software: manage activity and inactivity of nodes through special algorithms
Energy Scavenging
Need to wirelessly powered the sensors Through energy sources
o Motion and vibration
o Air flow, temperature
o Solar cells, ambient electromagnetic
Alternatives Explore battery technology
Lithium energy 1400-3600J/cc Fuel cells, very high energy 638kJ/mol for
methanol
-
Architecture and Implementation of Biosensors for Health Monitoring
1. Biosensors
2. Topology of a Wireless Body Sensors Area
Networks
3. Architecture of a Wireless Body Sensors
Area Networks
4. Wireless Communication Technology for
Body Area Networks (BAN)
5. Power Consumption and Energy
Scavenging
6. Security in the Body Area Network
7. Conclusion
Virus in BSNs view
Compromised Nodes Attacks in the BSN
o Buffer overflow attack, exhaustion of the
battery, selective forwarding attack
o Collision, jamming attacks, Trojan
Horse Solution
Choose the most efficient topology Star is suitable for the body sensor
networks
Peer-to-peer implies mesh-based topology
o Ensure a good routing mechanism
o Provide a well defined slave/master
role between nodes
Cryptographic approach
-
Architecture and Implementation of Biosensors for Health Monitoring
1. Biosensors
2. Topology of a Wireless Body Sensors Area
Networks
3. Architecture of a Wireless Body Sensors
Area Networks
4. Wireless Communication Technology for
Body Area Networks (BAN)
5. Power Consumption and Energy
Scavenging
6. Security in the Body Area Network
7. Conclusion
Cryptographic approach
o Using block ciphers : For example the cipher
block chaining technique is the most secure
Figure 3: Cipher block chaining mode
-
Architecture and Implementation of Biosensors for Health Monitoring
1. Biosensors
2. Topology of a Wireless Body Sensors Area
Networks
3. Architecture of a Wireless Body Sensors
Area Networks
4. Wireless Communication Technology for
Body Area Networks (BAN)
5. Power Consumption and Energy
Scavenging
6. Security in the Body Area Network
7. Conclusion
Cryptographic approach
o Through secure protocols:
Secure Networks Encryption Protocol (SNEP)
and TESLA
Figure 4: SNEP, encryption and decryption with
counter mode
-
Architecture and Implementation of Biosensors for Health Monitoring
1. Biosensors
2. Topology of a Wireless Body Sensors Area
Networks
3. Architecture of a Wireless Body Sensors
Area Networks
4. Wireless Communication Technology for
Body Area Networks (BAN)
5. Power Consumption and Energy
Scavenging
6. Security in the Body Area Network
7. Conclusion
In this presentation, we presented multiple
topologies relative to the BSN and also exposed
the constraint in term of hardware and software
design to provide high level security and reliable
transfer of data. We have shown that the body
sensor networks could successfully be implemented
for monitoring purposes in the health system using
adequate topology and security measurement.
top related