Prepared by: Shah Faisal Iqbal
Motivation
What is Fatigue???
Proposed protocol
Placement of nodes
Scenarios
Energy analysis
Radio model parameters
Transmission model
Simulations and results
Comparison table
conclusion
Wireless
Body
Area
Sensor
Networks
(WBASNs) consist of on-body and in-body
sensors on human body for monitoring
health.
In WBASNs protocols are concerned with
energy efficiency.
Specific mobility scenarios are not considered
in previous protocols.
Fatigue, physical or mental, is a subjective
feeling of tiredness.
Physical fatigue is the inability of muscles to
maintain optimal physical performance.
Fatigue is caused by loaded work, depression,
boredom, mental stress, lack of sleep, etc.
For improvement of security, we must know
the physical status of soldiers.
An important factor in physical status of
soldier is fatigue.
If we know state of fatigue in soldier then we
can send backup to them.
We propose a protocol for measuring fatigue
of soldier.
Four sensors are attached on body of soldiers
•
•
•
•
Temperature sensor
Blood glucose level sensor
Heartbeat sensor
Base station
Temperature sensor is placed on finger tip to
measure temperature.
Blood glucose level sensor is also positioned on
finger tip to measure glucose level in blood.
• We assume that sensor takes blood samples periodically
and checks glucose level in blood.
Heartbeat sensor is placed on heart to measure
heartbeat.
BS is placed on wrist of soldier, all the above
three sensors send their data to BS.
Placement of nodes on soldiers body.
We take three scenarios for measuring fatigue
of soldier.
◦ Walking (3.0 miles per hour)
◦ Slow running (5.0 miles per hour)
◦ Fast running (7.0 miles per hour)
In all the three scenarios, sensors sense the
heartbeat, glucose level and temperature and
send their data to BS.
For state of fatigue we use harris benedict
formula. i.e.
◦ 𝐴 = 13.75 ∗ 𝑤𝑒𝑖𝑔ℎ𝑡 𝑘𝑔
◦ 𝐵 = 5.003 ∗ ℎ𝑒𝑖𝑔ℎ𝑡 𝑐𝑚
◦ 𝐶 = (6.775 ∗ age(years))
𝐵𝑀𝑅 = 66.5 + 𝐴 + 𝐵 + 𝐶
BMR is the amount of energy required to
If soldier’s condition meets this level then this is
called as state of fatigue.
maintain metabolic rate of body.
Energy consumption model used in paper is
summarized in the following equations.
Where:
Etx= transmission energy
Erx=Reception energy
ERXelec=Energy dissipated by radio to run circuitry
for receiver
ETXelec=Energy
dissipated
circuitry for transmitter
by
Eamp =Amplification energy
n=Path loss exponent
K=Number of transmitted bits
radio
to
run
the
Following are the parameters of radio model
Figure shows sending of data from nodes to
BS(server)
We used MATLAB for simulation.
Our goals in conducting simulation are,
◦ Measuring fatigue of soldier while walking, running
slowly and running very fast.
◦ Extension of sensor lifetime.
From figure we can see that lifetime of
sensors is more in walking scenario, because
of less activities and sensor does not send
data more often.
Throughput of running scenario is higher
then walking and slow running scenario
because heartbeat increases faster and
sensor has to send data.
For measuring fatigue, we set a threshold by
harris benedict formula.
1500 (joules) is set to be threshold in our
simulations.
Figure in next slide shows the fatigue of
soldier.
When soldier is walking state of fatigue
comes later compared with slow and fast
running scenarios because of soldiers
activity.
In fast running scenario sensors drain off
their energy quickly than walking and slow
running scenario, as they are busy in getting
data from soldiers body.
Comparison table of lifetime and throughput
for three scenarios.
Table shows the fatigue of soldier in rounds.
When soldier is walking his state of fatigue in
the 10182th round.
Routing protocol for measuring fatigue of
soldier.
Performs better in terms of sensor lifetime
and throughput.
Any Question ???
0
