17-03-2014, 06:18 PM
Abstract—Wireless Sensor Networks (WSN) are set of
thousands or more micro sensor nodes that one of the most
important constraints of them is their limited energy. Since
these nodes have very small dimensions, so their needed
energy is provided by small and limited energy batteries.
Therefore, the problem of energy reduction will be one of
the biggest challenges in these networks. In this paper, we
will propose a new cluster-based method that can reduce the
average energy consumption in each round using a new
method for data packet transmission to BS . In this method,
all normal nodes and all cluster heads (CHs) use a tree
structure for transmit their data packets toward the cluster
heads and BS respectively. In fact, the energy consumption
is reduced in contrast to LEACH through the following
modifications. 1) minimization of hop lengths which are
necessary to transmission of data packets inside the clusters
2) via continuously data aggregation in and out of the
clusters 3) the selection of the nearest cluster head to the BS
for transmission of final data packet toward the BS in each
round. Simulation results show that the new algorithm
decreases the average energy consumption of sensor
network in contrast to LEACH.
Keywords-Cluster-Based routing,Energy Consumption,WSN
I. INTRODUCTION
Wireless sensor networks are set of hundreds or
thousands of micro sensor nodes that have capabilities of
sensing, establishment of wireless communications between
each other and doing computational and processing
operations. In fact, these sensors sense their environment and
can provide some information about the environments which
are far from us via the wireless communications. These
networks have many applications and appeals but because of
their energy and bandwidth limitations, actual application of
them is difficult. Also, Since we must use many numbers of
these micro sensor nodes to achieve these capabilities, the
cost for each node should be very low. The power of sensor
node is depended on the power of the battery which is
embedded in it, so we have always the limitation for the cost
and size of the sensor nodes.
In this paper, we will propose a new method to data
transmission in WSNs. it uses a cluster-based structure
similar to LEACH and can reduce the total energy
consumption. All simulations were done using MATLAB
software and we suppose the following assumptions for
network modeling.
1) All sensor nodes and the BS are stationary and do not
have any movement.
2) The sensor nodes are homogenous and so, the initial
energy for all of them is identical.
3) All sensor nodes can communicate with BS directly.
thousands or more micro sensor nodes that one of the most
important constraints of them is their limited energy. Since
these nodes have very small dimensions, so their needed
energy is provided by small and limited energy batteries.
Therefore, the problem of energy reduction will be one of
the biggest challenges in these networks. In this paper, we
will propose a new cluster-based method that can reduce the
average energy consumption in each round using a new
method for data packet transmission to BS . In this method,
all normal nodes and all cluster heads (CHs) use a tree
structure for transmit their data packets toward the cluster
heads and BS respectively. In fact, the energy consumption
is reduced in contrast to LEACH through the following
modifications. 1) minimization of hop lengths which are
necessary to transmission of data packets inside the clusters
2) via continuously data aggregation in and out of the
clusters 3) the selection of the nearest cluster head to the BS
for transmission of final data packet toward the BS in each
round. Simulation results show that the new algorithm
decreases the average energy consumption of sensor
network in contrast to LEACH.
Keywords-Cluster-Based routing,Energy Consumption,WSN
I. INTRODUCTION
Wireless sensor networks are set of hundreds or
thousands of micro sensor nodes that have capabilities of
sensing, establishment of wireless communications between
each other and doing computational and processing
operations. In fact, these sensors sense their environment and
can provide some information about the environments which
are far from us via the wireless communications. These
networks have many applications and appeals but because of
their energy and bandwidth limitations, actual application of
them is difficult. Also, Since we must use many numbers of
these micro sensor nodes to achieve these capabilities, the
cost for each node should be very low. The power of sensor
node is depended on the power of the battery which is
embedded in it, so we have always the limitation for the cost
and size of the sensor nodes.
In this paper, we will propose a new method to data
transmission in WSNs. it uses a cluster-based structure
similar to LEACH and can reduce the total energy
consumption. All simulations were done using MATLAB
software and we suppose the following assumptions for
network modeling.
1) All sensor nodes and the BS are stationary and do not
have any movement.
2) The sensor nodes are homogenous and so, the initial
energy for all of them is identical.
3) All sensor nodes can communicate with BS directly.