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In day to day, the Object Liveness Detection for Genuine Face recognition becoming a challenging task in security systems which is important in many real time applications such as User Authentication, Object Identification, Object Recognition, Object live detection, genuine face identification and many more. From many decades, the existing systems and proposed systems for Genuine Object Face recognition...
Now a days verification has become one of the most important challenges in getting advanced SOC devices in the market. With the advancement of technology, there is a need to integrate more components in SoC that results in increased chip complexity. This complexity issue in SoC must be resolved by some advanced methodology. Industry experts consider that in the overall design effort, the verification...
Band-gap voltage reference circuits are used to provide an independent reference voltage, which remains immune to power supply, temperature. One of the limitations of these circuits is they provide a single, unique value of voltage which is stable. Any effort to change this value will make the circuit voltage, temperature dependent. The voltage will be constant only for one voltage value and varies...
Verification of Gigabit Ethernet MAC (Media Access Control) by using the most advanced verification methodology i.e. UVM (Universal Verification Methodology) has been presented in this paper. The main function of MAC is to forward Ethernet frames to PHY through XGMII (10 Gigabit Media Independent Interface) and to receive the frames from PHY to MAC through the same interface. Verification of IP provides...
This paper presents the study of novel compact printed elliptical slot antenna with ultrawideband characteristics. The antenna is composed of microstrip line fed rectangular patch and U-shaped tuning stub. Various dielectric substrates are examined for the better performance and characteristics of proposed elliptic-al slot antenna. Return losses, surface current distributions, farfield radiation patterns...
Security and privacy are major issues which risk the wireless communication system in successful operation employment in Adhoc and Sensor networks. Message confidentiality can be assured through successful message or content encryption, but it is very difficult to address the source location privacy. A number of schemes and polices have been proposed to protect privacy in wireless networks. Many security...
Analysis of convolutional windows in fourier and fractional fourier domain is the main objective of the paper. First, the concept of convolutional windows and its necessity is discussed. Next, basics of Fractional Fourier Transform (FRFT) and its properties is explained. Later fourier transform and FRFT based analysis of convolutionalwindows is carried out. It has been observed that the sidelobe level...
Electrolyzer produces hydrogen and oxygen from off-peak electricity generated by the renewable energy sources (wind turbine and photovoltaic array), for later use in the fuel cell to produce on-peak electricity. A power conditioning system, usually a DC-DC converter is required to couple the Electrolyzer to the system bus. This paper presents the design of three soft-switched high-frequency transformer...
In this paper a 12-bit, 100-MSample/s current-steering CMOS D/A converter for wireless communication terminals is presented. Current steering DAC is used since, it is inherently fast and can drive the resistive load without using an output buffer. A segmented architecture is proposed to attain the required speed and accuracy. The INL and DNL of the DAC is less than 1LSB and is around 0.6 and 0.2 LSB...
CMOS technology continues to drive the reduction in switching delay and power while improving area density. However, the transistor miniaturization also introduces many new challenges in Very Large Scale Integrated (VLSI) circuit design, such as sensitivity to process variations and increasing transistor leakage. On the other hand, the need for on chip memory in Digital systems has been increasing...
A low-complexity and very low bitrate scalable video coding scheme is proposed in this paper. The proposed scheme consists of a novel weighted smoothing method and a novel interpolation mode map method to efficiently interpolate motion vectors between layers. The weighted smoothing method gives smoother motion vector field by considering the motion boundaries through motion vector correlation. In...
The audio signal is processed in two frequency bands, to detect active and inactive frames present in the audio signal. The voice activity classification of the audio signal is performed depending on the evaluated plurality of parameters and pre-defined validation conditions. The plurality of parameters includes low band energy, high band energy, variance, variance factor, etc. Accurate classification...
Routing in adhoc networks is nontrivial due to highly dynamic nature of the nodes. In recent years several routing protocols targeted at mobile adhoc networks are being proposed and prominent among them are DSDV, AODV, TORA, and DSR. This paper does the comprehensive performance analysis of the routing protocols using ns2 simulator considering all the metrics as suggested by RFC 2501. Results indicate...
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