<span>Recent days witnessed considerable developments in the field of wireless sensor networks (WSNs). The applications of these networks can be seen in the simple consumer electronic devices as well as in the advanced space technology. The communication protocols are of prior importance and interest; the low-energy adaptive clustering hierarchy (LEACH) protocol is used to enhance the performance of power consumption for the WSNs nodes. The efficiency of a wireless network can be affected by different factors, such as the size of the WSN and the initial energy of the sensor node. This can inspire the researchers to develop the optimum structure of the WSNs to get its desired functionality. In this paper, the performance of the low-energy adaptive clustering hierarchy (LEACH) protocol is investigated using MATLAB to study the effect of the initial energy of the sensor node and the WSN size on the number of the running nodes. It is found that increasing the initial energy of a sensor node increases the life time of the node and hence the number of the running nodes. It has been also approved that the WSN size has an inverse proportion with the number of running sensor nodes during the use of LEACH protocol.</span>
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<span>Enhancement of teaching and education is crucial. This enhancement is rapidly improved through combining communication and technology resulting in various benefits (particularly the wireless Technologies (WT)). Such combination encourages lecturers to meet the worldwide demand for changing traditional teaching techniques to technology-based methods. Wireless system networks (WSNs) represent systems of smart devices that are<em></em>linked wirelessly. In addition, these devices are characterized by having a bandwidth of bounded communication, abilities of sensing and computation. For performing operations of control, this system employs a Flywheel Position Control System (FW PCS) as a plant node. This study utilizes the True Time 1.5 MATLAB/Simulink platform for simulating and implementing the WSN mathematical model with wireless networks. The simulation is carried out between plant nodes and controller using the IEEE 802.15.4 standard (also called ZigBee) via protocols of Wi-Fi. The suggested E-learning model comprises a set of properties that can encourage and enhance the level of students in various learning purposes and stages. </span>
Wireless technologies are rapidly being adapted from simple monitoring and control to supervisory control and data acquisition (SCADA) system. Wireless provides highly reliable data communications in harsh and interference-heavy environment. In this article, new wireless SCADA system has been built to control Al-Najaf cement plant wirelessly. Two pieces of nanostation5 (5GHz) which utilize the Wi-Fi wireless technology and IEEE802.11/g standard were used. They used as transceiver for transmitting and receiving the information between master station (MS) and remote terminal units (RTUs). CIMON devices from KDT systems for experimental set-up were used. A more detailed focus on Iraq cement plants using wireless technologies for monitoring and control of the whole process as an application also was presented.
General TermComputer networks and protocols, Computer control and systems, Industrialized embedded control systems, computerized control and automation, Wireless sensor networks.
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