Design and Development of Patient Care Voice Actuated Bed in Hospital
A Low Profile Dual U Shaped Monopole Antenna for WLAN/WiMAX/C Band Applications
A Miniaturized Dual L Shaped with Truncated Ground Rectangular Monopole Antenna for 5G and Wireless Communications
A Centre C-Shaped Dual Band Rectangular Monopole Antenna for Wi-Fi and Wireless Communication
Impact of Subchannel Symbol Rates on WSS Filtering Penalty in Elastic Optical Networks: A Comparative Study
Cognitive Radio Simulator for Mobile Networks: Design and Implementation
Reduced End-To-End Delay for Manets using SHSP-EA3ACK Algorithm
Light Fidelity Design for Audio Transmission Using Light Dependent Resistor
Dynamic Digital Parking System
Performance Analysis of Multi User Transmit Antenna Selection Systems over TWDP Fading Channels
Comparison of Wavelet Transforms For Denoising And Analysis Of PCG Signal
Video Shot Boundary Detection – Comparison of Color Histogram and Gist Method
Curvelets with New Quantizer for Image Compression
Comparison of Hybrid Diversity Systems Over Rayleigh Fading Channel
Design of Close Loop Dual-Band BPF Using CascadedOpen Loop Triangular Ring Resonator Loaded With Open Stubs
Reliability is one of the big challenges in Wireless Sensor Networks (WSNs). It can be improved by using some of the intelligent and knowledge-based mechanisms, such as Support Vector Machine (SVM) and Multiple Criteria Decision Analysis (MCDA). This paper proposes an SVM and MCDA based, intelligent approach for enhanced reliability in WSNs, called SMIER. It is considered for a cluster-based sensor network in a way that every Cluster-Head (CH) selects one of its Non Cluster-Head (NCH) nodes as a backup node in a period of time. Initially, the suggested SVM algorithm determines failure probability of each NCH node based on number of events and average distance to events. Afterward, the suggested MCDA controller calculates success rate of the NCH node by using three parameters, including remaining energy, distance, and failure probability. Simulation results show that the proposed approach surpasses some of the existing works in terms of packet delivery ratio, number of alive nodes, and average remaining energy.
This paper presents the theoretical anti-jamming performance of adaptive multiuser DS-CDMA system with imperfect channel estimation in flat fading channel environment. Pilot symbols are used to estimate the fading coefficients using Least Mean Square (LMS) algorithm. Further, pilot data are added to users' data. Slow switching pulse noise jammer is considered in the work and the effect of imperfect channel estimation on Bit Error Rate (BER) is studied. It has been shown analytically that channel estimator reduces the phase distortion produced by channel, whereas amplitude distortion remains unaffected. Under the perfect synchronization assumption, probability of error in closed form is derived.
Microstrip antennas are the stronger candidate among all the wireless applications. This paper proposes the designing and use of patch antenna with circular ring-π-shaped slot to achieve a dual band operation in WiMAX and WLAN standards. The circular ring-π slot designed on patch antenna resonates at 3.33 GHz and 5.06 GHz frequencies. The antenna consists of coaxial line-fed square patch embedded with a narrow and symmetrical circular π-shaped slot to generate such a dual-band resonance. The observed bandwidths are 6.32% and 1.28% at 3.33 GHz and 5.06 GHz, respectively. The generated return losses at these resonant frequencies are -19.84 dB and -21.74 dB.
this paper, millimeter wave is generated through frequency 12-tupling concept using 10 GHz Radio Frequency Local Oscillator (RFLO) and parallel connected Dual Drive Mach-Zehnder Modulator (DD-MZM) in Radio-over-Fiber system (RoF). Two optical sidebands are generated by adjusting the voltage of the RF local oscillator, phase shift of the phase shifter and DC bias of DD-MZM. Optical sidebands have optical sideband suppression ratio 25 dB. There is no need of the optical filter in this model. The proposed scheme eliminates the need of extremely high frequency RF local oscillator. A simulative investigation is performed over a distance of 15 km and the output is analyzed in terms of BER, Q-factor, and eye diagrams. It is reported that the generated sixth order sideband supports good transmission up to the data rate of 2.5 Gbps.
Optical sensors are being considered for lab-on-a-chip applications due to its small size, compatibility, and passive behaviour. Microcantilever based sensors have been demonstrated to be extremely versatile sensors and having its potential applications in chemical, biological, and physical sciences. This paper presents a platform in optical sensors mainly for hexagonal photonic crystals, which engenders high Quality Factor and Sensitivity. In this work, optical ring resonator has been integrated on cantilever beams for force sensing applications. Plane Wave Expansion, Finite Difference Time Domain method, and Finite Element Method have been used for simulations.
The authors review the recent progress of Dense Space Division Multiplexing (DSDM) technologies using few-mode or multi-mode and multi-core fibers in this paper. It is shown that DSDM with high spatial density and large spatial multiplicity is effective for greatly expanding transmission capacity. In order to expand the capacity of the optical system, it has accelerated the development of high capacity DSDM transmission. The main objective of this project is to deploy a24 multi core fiber with 6 multi mode, thus achieving the high spatial channel count up to (N×M=144). An analysis has been carried out for low crosstalk (XT) and low differential mode delay. Also it has been observed for confinement electric field, effective mode index (n ), bending radius (R), core pitch (Δ), coupling coefficient (k).