Abstract:
Wireless sensor network is a group of low-cost, low-power, lightweight, thin, and multi functional sensor nodes. It has a wide range of applications in our everyday lives.
Environmental monitoring, healthcare applications, and military applications are among the
most popular. LEACH (Low-Energy Adaptive Clustering Hierarchy) was discovered after
researchers examined a number of wireless routing protocols. LEACH is a cluster-based
routing protocol with self-organizing sensor nodes grouped into clusters. Each cluster has a
cluster head who is in charge of accepting data from all member nodes through a TDMA
schedule. This protocol's method for assigning TDMA schedules has a flaw for unbalanced
clustering. As a result, modified TDMA schedule has been proposed. It makes use of the
cluster's largest capacity to allocate TDMA schedules. CHs communicate with one another to
announce their capacity to other CHs, allowing the cluster's largest capacity to be determined.
To know the capacity of the largest cluster, each CH receives message from other remaining
CH to know their cluster capacity and broadcast message to announce its own number of
member nodes for other CH. In this scenario, each CH consumes more energy due to CH
communication. To overcome this problem, we proposed Energy Efficient Modified TDMA
schedule for WSNs. To fill this gap Energy Efficient Time Division Multiple Access
(EETDMA) algorithm was proposed. This algorithm reduced communication between cluster
heads by determining the cluster's largest capacity using the base station. Castalia 3.3
simulator with OMNET++ framework was used to test the proposed work. The proposed work
is more energy efficient than the existing work, according to simulation results. Average
energy consumption was reduced by 7.9 % & 13.29% respectively in LEACH with MTDMA
and LEACH with TDMA. Packet received per node to base station were improved 3.29% &
5.47 % respectively in LEACH with MTDMA and LEACH with TDMA.
