Rajasthan Technical University

About: Rajasthan Technical University is a education organization based out in Kota, Rajasthan, India. It is known for research contribution in the topics: Photovoltaic system & PID controller. The organization has 716 authors who have published 1084 publications receiving 4530 citations. The organization is also known as: RTU.

Energy Efficient Cluster head selection for Wireless Sensor Network: A Simulated Comparison

Abstract: Clustering is used as key technique for load sharing in Wireless Sensor Networks for energy efficiency in resource scare network. A good selection of the cluster head support in longitivity network. Many of the cluster based algorithm were proposed for WSN and shows that it prolong network lifetime significantly. In this paper a comparison study of Cluster Head selection is presented that is supported by simulation results on MATLAB.

A metamaterial loaded hybrid fractal multiband antenna for wireless applications with frequency band reconfigurability characteristics

Abstract: Abstract In the present article authors propose the design and analysis of an octagonal shape multiband metamaterial loaded antenna with implementation of hybrid fractal geometry for wireless applications. Multiband features in the antenna structure is realized by applying the slotted and hybrid fractalization of Moore and Koch curve approach in radiating section along with introduction of two metamaterial SRR cells. The frequency band reconfigurability characteristics in proposed design is achieved by placing the PIN diode inside the connecting strip between the central hybrid fractal geometry and feedline. During forward bias condition of PIN diode antenna structure resonates at hepta (seven) band mode at WiMAX (3.5 GHz)/Lower C-band (4.41 GHz)/WLAN (5.4/5.8 GHz)/Lower X-band (8.26 GHz)/Upper X-band (10.48 GHz)/Lower Ku-band (13.35 GHz)/Middle Ku-band (14.42 GHz) wireless standards with S 11 ≤ −10 dB. Proposed antenna represent the hexa and hepta band features during reverse bias (OFF-state) and forward bias condition (ON-state) of PIN diode respectively. A stable and consistent radiation patterns, appropriate impedance matching and an acceptable gain are achieved at all the operating frequencies of the proposed antenna.

Optimum utilization of photovoltaic generation with battery storage in distribution system by utilizing genetic algorithm

Abstract: This work introduces a methodology for optimum utilization of photovoltaic (PV) energy generation with battery energy storage system (BESS) in distribution network In this work, three type time varying distribution load ie commercial, residential and industrial are considered for BESS allocation Power Loss minimization is considered as main objective function in this paper Moreover, bus voltage deviation is maintained within the distribution system operational limit Optimal allocation and sizing of battery energy storage system with photovoltaic generation is achieved by considering PV-BESS project case The proposed work is implemented on modified IEEE 69 Bus test system Based on the simulation results, the proposed framework for battery allocation reduces power losses and mitigate overvoltage problem in test distribution network The optimization results reveal that proposed optimization methodology is promising Results of this paper also shows that it is possible to dispatch peak power during the peak load hours for each type of load model

Wavelet based OFDM system over flat fading channel using NLMS equalization

Abstract: Wavelet transformation based OFDM has took place in wireless communication due to its time-frequency localization, bit error rate improvement, interference minimization, improvement in bandwidth efficiency with respect to conventional OFDM. DWT OFDM don't need of cyclic prefix (CP). This paper presents that bit error ratio is reduces much better due to NLMS algorithm based channel estimation than flat fading that can be modeled by Rayleigh and Rician in which later gives the improved results.

An efficient approach for stability preservation in model order reduction using moment matching technique

Abstract: In this paper, the model order reduction methodology using novel moment matching technique is presented. A typical problem having stable operation is reduced using proposed MM technique. The reduced order model presents the unstable response. A technique of pole placement is proposed for making such unstable systems to be stable reduced models using MM technique. The comparative study between stable ROM and original system response with Eigen-values and settling time.