MAC unit is mostly demanded in the DSP application. It performs the both addition and multiplication. Here the MAC unit is designed by using the parallel prefix adders like kogge-Stone adder, Brent-Kung adder, Han-Carlson adder and Ladner Fischer adder these adders are the high-speed adders to improve the speed of MAC unit and multiplication purpose. In this design, these four adders are implemented to the array multiplier and to design the MAC unit. The performance and analysis of MAC unit is done by the Verilog HDL and the MAC unit is simulated and synthesized in Xilinx ISE 14.7 for Spartan-6 family technology. The simulation results show that low power, high speed and low area consumption MAC unit.

Monitoring Dams safety and water management is extremely important considering both the situations like water scarcity and excess of water. It is of crucial importance and needs to develop information system based on existing system allowing utilization of intelligent sensors network. Basic idea is to describe possibilities of IoT applications in Dam Safety and water management. Here the entire dam and the main pipeline is sensed 24x7 through various sensors. These wireless sensor nodes connected with each other and transmits the data to a gateway. Common storage space "CLOUD" stores and provides on line information to the observer. Employing an IoT for the said purpose will definitely help saving the most precious natural resource the water. Here in this paper an attempt is made proposing an electronic circuit design employing an Internet of Things concept for the purpose. Ultrasonic sensor is used to find the crack in dam and vibration sensor is used to find any abnormal changes in dam due to natural disaster.