出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：In current years, there have been a large progress in Wireless Sensor Networks (WSN) due to
their development in term of hardware and cost reduction. Plenty of routing protocols have
been proposed and developed depending on the application and network architecture. One of
the most efficient energy management of the wireless sensor networknodes is provided by the
LEACH (Low Energy Adaptive Clustering Hierarchy) mechanism. This hierarchical protocol
uses cluster head function of the nodes to aggregate and forward the messages from the cluster
members to the Sink node. Each node decides to become cluster head stochastically in each
epoch time intervals. Nodes have enough energy to reach directly through radio channel any of
the nearest cluster nodes, as well as the sink node. Optimization algorithm is required to
provide efficient energy consumption on the WSN clusters level. A node being cluster head in
the actual epoch time can repeat this function just with a probability p in time. Classical nodes
find the nearest cluster head to minimize the transmission energy consumption and use time
division multiple access method (TDMA)to send the radio frames in each epoch time. In this
paper we use own developed simulation method and software to analyze the remaining energy
process in time of the whole WSN network and the number of forwarded frames in function of
the probability p for a set of nodes having heterogeneous levels of the initial energy.
关键词：Internet of Things (IoT); Wireless Sensor Network(WSN); Low Energy Adaptive Clustering;
Hierarchy (LEACH) protocol; radio communication; energy sparing; stochastic process.
