This paper presents a study of the QPSK (Quadrature Phase Shift Keying) modulation technique using rician channel in CDMA (Code division multiple access) systems. The selection of good modulation technique is a important factor for analyzing the performance of communication system. The simulated result...

In this paper we are going to investigate the performance of Least Squares Error (LSE) Algorithm in OFDM channel estimation. It is based on the energy of pilot tones and data symbols. We first calculate the mean square error (MSE) of the LS channel estimate. LSE algorithm is used to enhance the channel...

This paper holds a research about the Semantic Web and E-learning along with a proposed model for a Semantically Active E-Learning system. This system makes use of some E-Learning agents, semantic web services, ontologies and properties of ontology. Protégé is used to implement this E-Learning system.

Artificial intelligence involves two basic ideas. First, it involves studying the thought processes of human beings. Second, it deals with representing those processes via machines (like computers, robots, etc.). One of the main benefits of speech recognition system is that it lets user do other works...

Technology is getting advance day by day and it is providing the better life-style to human-beings. But when it comes to the safety and security of the people, the advancement of technology seems lacking. So as per the security and safety concern, the Global Positioning System (GPS) is a real innovation...

A novel compact reconfigurable multiband antenna is proposed. The antenna is designed with the 40mm x 40mm substrate with the dielectric constant of 10.2 and the thickness of 1.27mm. the substrate used is Roger RT/Duroid 6010. By achieving the switching multiband functionality, this antenna is almost...

This paper describes the database development of three different types of spoken words Isolated, Spoken Hindi Hybrid Paired Words and Spoken Hindi Partially Reduplicated words. The main focus is on the comparative analysis of these Words by using endpoint detection algorithm. The development is done...

Recent advances in wavelength division Multiplexing (WDM) technology are expected to facilitate bandwidth –intensive multicast applications. However, a single fiber (bundle) cut on such a networks can disrupt the transmission of information to several destination nodes on a light tree based multicast...

A comparison of return-lose for different configuration of inset-fed microstrip patch antenna is shown in this paper. Here single patch of microstrip antenna is fed by single and double inset-microstrip feeds separately in different configurations (i.e. their dimensions are kept same only numbers of...

This paper presents comparison of three and four feed microstrip patch antenna. Return loss of the proposed antennas are analyzed at operating frequency range 1 to 10 GHz. The proposed antenna is simulated using HFSS11 software. The epoxy and inset feeding is used as the substrate material and designing...

Correlation techniques are used to find whether the electrocardiogram (ECG) is normal or abnormal. These correlation techniques could be further used to detect the type of abnormality present in the abnormal ECG. Reference ECG signals could be stored for all type of abnormalities and the test ECG signal...

For mobile satellite systems, quality of service and service availability depend on the line-of-sight satellite availability. The satellite visibility is one of the major factors which influence satellite link availability, since the satellite channel behavior is depended on the link conditions between...

Order reduction is very important issue in control system. Analysis, simulation and response of a lower order system are simple and fast. So in this paper, a simple but very effective approach based on Routh Criterion is used to determine reduced order model of an unstable open-loop system. Aircraft...

In the present scenario the world is moving towards automated systems. To design a hardware which is able to interact via internet is a challenging task in design of any automation system. A new term known as ’Internet of things’ also faces the same kind challenge, of interfacing a dumb electronic terminal...

In order to measure the velocity of a missile, several models have been discussed in this paper. It deals with the tracking and following of single/multiple missile in a sequence of frames and the velocity of the missile is determined. Algorithms have been developed for improving the image quality, segmenta-...

Evaluating the trust of participating entities increases the security and collaboration among members. This work presents the trust accumulation schemes using lightweight vibration signals. In all scenarios virtual nodes are considered to create subgroup in close vicinity. It is observed that trust accumulation...

In this paper analysis of multilayered antenna is done by considering two approaches in which stacked patch is realized with common dielectric and in other approach stacked patch is realized with different dielectric substrates. Both the approaches are analyzed commonly with 10% reduction in dimensions...

In this paper the design and analysis of annular ring slot microstrip antenna is presented. The design frequency of antenna is 2.1 GHz and used substrate for the fabrication of the proposed antenna is FR4. After simulation and testing return losses of about -14 dB, -14 dB, -19 dB and -10 dB are obtained...

In this paper, a novel swastik shape microstrip patch antenna with enhanced bandwidth is presented and discussed. The proposed design offers low profile,enhanced bandwidth and compact antenna element. The maximum gain is 3.61 dBi at 2.5 GHz, antenna efficiency is 88.20% while the radiation efficiency...

The paper presents a quality analysis of the power of Dehradun Institute of Technology. Aspects such as magnitudes and phases of voltages and currents of all phases, power factor, voltage and current harmonic content, dips and swells, frequency stability, and inrush current were taken into account. These...

We present marker less camera tracking and user interface methodology for readily inspecting augmented reality (AR) objects in wearable computing applications. Instead of markers, human hand is used as a distinctive pattern that almost all wearable computer users have readily available. We present a...

Knowledge is a vital resource for corporate competitiveness and there are number of information technology solutions that provide support to knowledge management. One of the relevant issue to be discussed is- Role of IT in success or failure for implementation of KM. The purpose of this study is to explore...

In this paper we had analyzed the spread spectrum techniques in a broader sense, in context of their performance. Spread spectrum is an increasingly important form of encoding for wireless communications. It can be used to transmit either analog or digital data, using an analog signal. The basic idea...

During handoff an ongoing call is transferred from one cell to another as a user moves through the coverage area of a cellular system. This paper presents an overview and critical analysis of published work over handoff performance both in uplink and downlink direction. Further it discusses with future...

Cloud computing is the use of computing resources (hardware and software) that are delivered as a service over a network (typically the Internet). The name comes from the use of a cloud-shaped symbol as an abstraction for the complex infrastructure it contains in system diagrams. Cloud computing entrusts...

Abstract: Most of the industrial controllers in use today utilize PID controllers. In this paper four methods for tuning of a PID controller are compared. A mathematical model of the most commonly used dynamic system i.e., a d.c. motor is derived and a PID controller is used in conjunction to it. Ziegler-Nichols...

Recently, research interest has increased in the design, development, and deployment of mobile agent systems in a wireless sensor network (WSN). Mobile agent systems employ migrating codes to facilitate flexible application re- tasking, local processing, and collaborative signal and information processing....

Natural frequency spectrum is scared resource; the efficient use of it can only accommodate the need of future computing world. But efficient use of it is not possible within the existing system, where the allocation of spectrum is done based on fixed spectrum access (FSA) policy. Many surveys show that...

IEEE 802.11a, Wireless Local Area Network (WLAN), is a wireless broadband technology, which is used as substitute of wired Ethernet as well as in public hot sport wireless network because of its higher data rates compared to cellular mobile networks. In order to provide higher data rate and to mitigate...

Deploying cloud for research purpose is quiet time consuming when different errors have to be eliminated. This paper lists out common problems and errors encountered while deploying private cloud and the possible solutions to these problems and errors. It will help beginners to minimize the time to setup...

WLAN is a flexible data communication system implemented as an extension to or as an alternative for, a wired LAN. This paper presents the placement of access points (AP) as a nonlinear optimization problem. The work explores the measured data in terms of signal strength in the indoor WLAN 802.11g at...

A cpw-fed Swastik shape Broadband planar inverted f antenna (PIFA) for WiMAX application has been proposed. Broadband operation (3.27 GHz to 4.02 GHz) is achieved by proper broadband matching at both the resonances (resonance due to even mode and resonance due to odd mode) due to modified cpw feed. Proposed...

The wireless sensor network is an emerging field that combines sensing, computation, and communication into a single tiny device. As sensor networks frame closer towards well-known deployment, security issues become a vital concern. So far, much work has focused on making sensor networks realistic and...

A novel quad band planar inverted F-antenna along with an added resonating copper arm working in GPS L1/Bluetooth/LTE2500/WiMAX/HIPERLAN1 is presented. The proposed antenna occupies a volume of 25 x 10 x 5.8 mm3 over the mobile circuit board. Parametric investigations of some important parameters are...

In this paper a spiral-shaped monopole like MIMO/Diversity antenna is proposed for mobile handsets. The proposed MIMO antenna covers the frequency bands LTE700 (777-787), GPS-L1 (1565-1595), and WLAN (2400- 2480). The isolation between ports is below -20dB for LTE, -21dB for GPS-L1, and -18 dB for WLAN...

Face recognition has become a popular area of research in computer vision, it is typically used in network security systems and access control systems but it is also useful in other multimedia information processing areas. One of its application is criminal face identification. Criminal record generally...

Today we consider the question of whether it is possible to sort without the use of comparisons. They answer is yes, but only under very restrictive circumstances. Many applications involve sorting small integers (e.g. sorting the employees according employee Id, sorting the list of students according...

Nowadays the automation has become a basic need for the industries. Induction Motors are the nerves of many industries. Hence Industrial automation is required for precise and accurate operation. This paper proposes a wireless control and monitoring system for an induction motor based on Zigbee communication...

In this paper, we propose Advanced applications in prominent fields such as Agriculture, Biomedical & Telemetry, Electronics & Telecommunications, Defence and Satellite communications using cooperative communication. The single sensor or array of sensors are interfaced with hard wire or wireless sensor...

In this paper, a new offline pattern recognition method has been presented, as a need for time management in lower order real time systems has been felt. The paper aims to present an algorithm for recognition of patterns in need-based applications where the focus has been laid on matching and eliminating...

The paper depicts investigation related to path loss estimation and overall performance of both theoretical and experimental propagation models. Performance of propagation models namely, SUI, Okumara-Hata and COST- 231 has been analyzed and compared with the experimental results obtained for frequency...

In the recent day’s mobile applications usage is increasing by banking and financial institutes, health and hospital management systems such as mobile banking apps, e-commerce apps, news feeds, inpatient and outpatient information, social networking apps and game apps etc. All these mobile applications...

A low frequency pushing wide frequency tuning range Radio frequency (RF) voltage – controlled Oscillator (VCO) in 0.35 m standard CMOS prosed for wireless applications is presented. It is different from all conventional designs primarily in the way it is biased. The measurement results show that the...