International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 06 Issue: 05 | May 2019 www.irjet.net p-ISSN: 2395-0072
© 2019, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 1270
Modified SIMPLE Protocol for Wireless Body Area Networks
Nidhi Dwivedi
1
, Hari Om Sharan
2
1
Research Scholar, Department of Computer Science and Engineering, Rama University, Mandhana, Kanpur, Uttar
Pradesh, INDIA
2
Head of Department, Department of Computer Science and Engineering, Rama University, Mandhana, Kanpur,
Uttar Pradesh, INDIA
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Abstract – Wireless body area network is a hot upcoming
field in automatic patient monitoring. In WBAN sensors are
placed on patient body, and these sensors collect patient’s data
and after aggregation data is send to base station, and finally
to doctor sitting at distant place from patient. As sensor nodes
sense data therefore their battery drains, and to save battery
power various routing protocols are proposed. In the similar
context recently SIMPLE protocol was proposed. In this paper
further modification is suggested to improve its performance.
Key Words: WBAN, SIMPLE, Throughput
1. INTRODUCTION
With the fast growth in the population of developed
countries, the health-care is now one of the major issues for
health-care authorities and government. In order to
overcome this problem and to provide patient monitoring
even from remote location, wireless technology is used
which also provides reliable, cost effective, and fast services
to patient. WBAN is the latest evolved technology which
provides very effective health care services. It gives simple
diagnostic monitoring [1]. In the WBAN technology, sensor
nodes work on energy source constraints. The sensors must
use power as low as could be for the transmission of data to
sink. With the minimum use of energy source can extend the
life of the battery over a long period due to the fact that
recharging batteries in WBAN is not frequent. In WBAN, one
of the prime issues is of recharging the batteries. To
overcome this problem, an effective routing protocol is
needed. WSNs have a number of routing protocols [2], [3],
[4], [5] which makes use of energy efficiently. But WBANs
and WSNs are of different architectures, applications and
work in different situation. It is not possible to port WSN
routing protocol to WBAN. Therefore, for WBAN we require
an energy efficient routing protocol in order to monitor a
patient for long time.
In this paper, we propose a reliable, high throughput and
stable routing protocol for the purpose of patient
monitoring. We place sensor nodes at their pre-decided
place on the patient’s body. Sensors for glucose level and
ECG are put close to the sink. Sink is paced at waist. Both of
these sensors contain important patient’s data and need high
reliability, less attenuation and long life as they have to
transfer their data to sink continuously. The parent node is
followed by other sensors and sends data to sink by means
of multi hop. It conserves nodes’ energy and network work
for a long time.
In this paper a wireless body area network protocol will be
designed. In this work, all the sensors located on body will
transfer data to sink node (generally on wrist or waist) and
sink node will transmit data to base station or to the server.
The simulation results will be evaluated in terms of
1. No. of dropped packets
2. Remaining Energy
3. Throughput
4. Number of dead node
These results will be plotted with number of rounds.
2. RADIO MODEL
In past various radio model is proposed for WSN. In general
first order radio is found suitable for WBAN as detailed in
[6].
Figure 1: First order radio model
This radio model assume that d , is the separation between
transmitter and receiver and
2
d , the loss of energy due to
transmission channel. First order radio model equations can
be summarized as
(,) () (,)
TX TX elec TX amp
E kd E k E kd
(1)
2
(,)
TX TX elec TX amp
E kd E k E k d
(2)
(,) () () ()
RX RX elec RX RX elec
E kd E kE k E k k
(3)