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In this paper we propose a Multichannel based X-MAC protocol (MX-MAC) with the objective of eliminating hidden node problem of existing asynchronous X-MAC protocol, as well as reducing average packet delay. To address the hidden terminal problems, multi channel enables a receiver to send a preamble with next receiver ID on the control channel to notify its neighbors that an ongoing reception is in...
Instead of MOSFET Single Electron Transistor (SET) can be used as a voltage controlled switch. The current flowing through a SET is the result of electron tunneling through tunnel junctions of its source and drain. So the supply voltage requirement is also very low. As a result, the power consumption across a Single Electron Transistor is ultra-low in comparison to that of a MOSFET. In this research...
Single Electron Transistor (SET) is an ultra small device which can be used as a possible replacement of a MOSFET. Like CMOS technology, CSET (Complementary SET) models can be used to build same digital circuits. Apart from the drawbacks (which have been discussed at the end of this paper), these digital circuits work fine. One of the main advantages of a SET based digital circuit over a MOSFET based...
The brushless dc motors are widely used in the servo motor application because of their different advantages over conventional DC motors. However high performance motor drives require fast and accurate speed response of the system, quick recovery of speed from any disturbance and sensitivity to motor parameter variation. To operate the motor with proper reference speed different controllers are widely...
Energy proficiency is an essential feature to intend an extensive existence wireless sensor network. More than a few methods have been proposed to boost the battery lifetime of sensor nodes. One of the methods is clustering approach which consists of two ways: selecting cluster heads with more residual energy and rotating cluster heads periodically from cluster to cluster thus extends the network...
The Brushless DC Motor (BLDCM) has been widely used in industries because of its properties such as reliability, high efficiency, high starting torque, less electrical noise and high weight to torque ratio. For the speed control of BLDCM, different controllers are used. In this paper, the performances of BLDCM with conventional controllers such as PI and PID have been evaluated and the results have...
Energy competence is an imperative aspect to intend an extensive existence wireless sensor network. Several methods have been proposed to increase the battery lifetime of sensor nodes. One of the methods is sporadically turn off the radio receivers of the sensor nodes in a synchronized mode. The sleep and wake up mode are included with this corresponding nature. Arbitrarily elected node form virtual...
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