Abstract: The topology control is a vital process to maximize the network lifetime of wireless sensor networks. In this paper, we present a distributed topology algorithm with transmission power adjustment based on optimal no. of neighbours to raise the network energy- efficiency and the network throughput and to cope with the trade-off between the energy balance and energy efficiency, a non-linear optimization problem is formulated to find the optimal route nodes and their various transmission ranges. In the algorithm, every node can adjust its transmission power level and calculate its optimal transmission power according to the optimal number of neighbours, and a virtual clustering scheme is presented which is based on optimal transmission power for network topology control, where the network connectivity is also guaranteed. This scheme can achieve energy consumption balance and high efficiency at the same time.

• Publication Date: 03-Jun-2011
• DOI: 10.15224/978-981-07-1847-3-1027
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Abstract: This paper compares the response of a induction machine with scalar speed PI controls and with Fuzzy logic controls. Fuzzy Logic Control is a part of intelligent control which contain hard and soft computing. The method uses a new linguistic rule table to adjust the motor control speed, and this FLC can achieve a good system performance of the IM scalar drive, and it is possible to implement a PI fuzzy logic controller instead the traditional PI controller. Hence, improvement can be achieved by the induction machine changing controls PI into Fuzzy.

• Publication Date: 03-Jun-2011
• DOI: 10.15224/978-981-07-1847-3-1027
• Views: 0
• Downloads: 0