Indexing

Abstract: The rapid growing rate of Melanoma makes researchers to study in depth about it. It is the most deadliest form of skin cancer. Due to the higher costs for dermatologists, images of skin lesion of the patient are taken and texture-based skin lesion segmentation algorithm is proposed. Different regions belonging to different textures are studied. Finally the image is classified as normal skin or lesion. Different model based pattern classification of the lesion is proposed. We mainly classify the whole pigmented lesion into three possible patterns: globular, reticular, and homogeneous.

Abstract: Watermarking is mainly projected for copy right protection, data safeguard, and data thrashing, etc. Nowadays all the communication requires protection. Estimation of video quality has a major role in today’s video distribution, communication control and e-commerce. Consumer fulfillment is achieved by providing good quality. Here the video input is changed into frames and the image set as watermark is embedded into the frames. The embedding process is carried out using DWT, then the embedded frame and other remaining frames are again changed into video file and it is transmitted. At the receiver side watermark image is extracted from the video. Finally, by using metrics such as TDR, PSNR the quality of watermark image is estimated under distortion. All experiments and tests are carried out using MATLAB.

Abstract: Engineering design problems are complex by nature because of their critical objective functions involving many variables and Constraints.  Engineers have to ensure the compatibility with the imposed specifications keeping the manufacturing costs low. Moreover, the methodology may vary according to the design problem.
The main issue is to choose the proper tool for optimization. In the earlier days, a design problem was optimized by some of the conventional optimization techniques like gradient Search, evolutionary optimization, random search etc. These are known as classical methods.
The method is to be properly Chosen depending on the nature of the problem- an incorrect choice may sometimes fail to give the optimal solution. So the methods are less robust.
Now-a-days soft-computing techniques are being widely used for optimizing a function. These are more robust. Genetic algorithm is one such method. It is an effective tool in the realm of stochastic optimization (non-classical). The algorithm produces many strings and generation to reach the optimal point.
The main objective of the paper is to optimize engineering design problems using Genetic Algorithm and to analyze how the algorithm reaches the optima effectively and closely. We choose a mathematical expression for the objective function in terms of the design variables and optimize the same under given constraints using GA.

Abstract: Wireless location finding is one of the key technologies for wireless sensor networks. GPS is the technology used but it can be used for the outdoor location. When we deal with the indoor locations GPS does not work. Indoor locations include buildings like supermarkets, big malls, parking, universities, and locations under the same roof. In these areas the accuracy of the GPS location is greatly reduced. Location showed on the map in not correct when the GPS is used under the indoor environments. But for the indoor localization it requires the higher accuracy sp GPS is not feasible for the current view. And also when the GPS is used in the mobile device it consumes a lot of the mobile battery to run the application which causes the drainage of the mobile battery within some hours. So to find out the accurate location for indoor environment we use the RSSI based trilateral localization algorithm. The algorithm has the low cost and the algorithm does not require any additional hardware support and moreover the algorithm is easy to understand. The algorithm consumes very less battery as compared to the battery consumption of the GPS. Because of these this algorithm has become the mainstream localization algorithm in the wireless sensor networks. With the development of the wireless sensor networks and the smart devices the WIFI access points are also increasing. The mobile smart devices detect three or more known WIFI hotspots positions. And using the values from the WIFI routers it calculates the current location of the mobile device. In this paper we have proposed a system so that we can find out the exact location of the mobile device under the indoor environment and can navigate to the destination using the navigation function and also can enable the low consumption of the smart mobile battery for the tracking purpose.
Goals:
1. Useful at the places where GPS cannot work
2. Reduces the battery consumption
3. Routers are used.
4. Provides the path as well as the information of the location as per the requirement of user.

Abstract: Multipath routing is an efficient technique to route data in wireless sensor networks (WSNs) because it can provide reliability, security and load balance, which are particularly critical in the resource constrained system such as WSNs. The existing protocols are not fully satisfied. In this paper propose a new routing protocol that is enhanced zigbee tree routing (EZTR), to satisfy the QoS parameters. The new protocol provides less delay as compared with other protocol.

Abstract: The main services provided by a WSN (wireless sensor network) is monitoring a particular region ie, RoI or specified region. The emergence of hole in that particular region is unavoidable. Due to some environmental factors, Random deployment and external attacks etc. In this work hole detection and hole healing process are discussed .Here show that heal deals with some virtual forces. According to the size of hole and also to improve the coverage area and need more energy efficient process.

Abstract: WPCN (wireless powered communication network) is the newly emerging network in which an access point called hybrid access point (HP) broadcast energy in the downlink and in the upper link wireless information transfer take place from sensors to hybrid access point. A protocol called “harvest-thentransmit” protocol is proposed where all users first harvest the wireless energy from the H-AP, in the downlink (DL) and then send their independent information to the HAP in the uplink (UL) by time-division-multiple-access (TDMA). A set of relay nodes used in the network enhances the over all throughput than sum throughput and common through hput. More energy efficient network can be got by using relay nodes. Simulation result showing the priority of the network that using relay nodes than other ordinary wireless sensor networks.

Abstract: Now-a-days the Automatic control has been increasingly implemented for vehicle control system. Especially the steering control is essential for preventing accidents. In the existing systems there is no fully automatic steering control and it has serious problems. When it is made automatic, the system complexity is more. So, the shared steering concept is used in the proposed system to avoid accidents. In this, the position of the road is found using the web camera installed in front of the vehicle which is connected to the PC installed with MATLAB. Using MATLAB the image is processed to check the road characteristics. This paper presents an advanced driver assistance system (ADAS) for lane keeping, together with an analysis of its performance and stability with respect to variations in driver behavior. The automotive ADAS proposed is designed to share control of the steering wheel with the driver in the best possible way. Its development was derived from an H2-Preview optimization control problem, which is based on a global driver–vehicle–road (DVR) system. The DVR model makes use of a cybernetic driver model to take into account any driver–vehicle interactions. Such a formulation allows 1) Considering driver assistance cooperation criteria in the control synthesis, 2) improving the performance of the assistance as a cooperative copilot, and 3) analyzing the stability of the whole system in the presence of driver model uncertainty. The developed assistance system improved lane-keeping performance and reduced the risk of a lane departure accident. Good results were obtained using several criteria for human–machine cooperation. Poor stability situations were successfully avoided due to the robustness of the whole system, in spite of a large range of driver model uncertainty.

Abstract: Adaptive and energy efficient compressive sensing clustering for wireless sensor networks. In this paper mainly used the term CS that is compressive sensing. Compressive sensing (CS) can reduce the number of data transmissions and balance the traffic load throughout networks. In this paper used compressive sensing used for clustering method. The enhanced hybrid compressive sensing method of using CS was proposed to reduce the number of transmissions in sensor networks.

Abstract: Android based E-home is an application of embedded system which integrates Android operating system, Arduino controller and GSM for the implementation of Smart Home. Any Android device can act as a transmitting device. The user can control any appliance through an user friendly mobile application built in Android platform. A unique code for controlling each appliance installed with the system is assigned in the program and it is transmitted from the Android phone to the CPU installed in receiver, through the application, as Text messages.  The GSM receiver in the CPU receives the text messages from the transmitting device and transfers it to the controller. The Controller decodes the message based on the decoding algorithm stated in the program and based on the command from the user; the controller sends signals to the switching circuitry. The Switching circuitry is the device which is in direct contact with the home appliances through wires and it controls the devices connected to it. Thus, by controlling the Switching circuitry, it is possible to control the various devices. Backward communication is also enabled when an event occurs in the mechanical switch. In this case, the GSM shield acts as a transmitter and sends a message to the user. Thus, ‘Android based E-Home’ provides a cost efficient, long range solution for the implementation of a smart home using less complex circuits and also provides an  user friendly environment through the android app. There is no need for an extra hardware as the Android smart phone itself acts as a transmitter which in turn contributes to the cost efficiency, ease of access and efficient operation of the system.

Abstract: Scientists, engineers, and researchers use wireless sensor networks (WSN) for a wide array of applications. Many of these applications rely on knowledge of the precise position of each node. An optimum localization algorithm can be used for determining the position of nodes in a wireless sensor network. This paper provides an overview of different approach of node localization discovery in wireless sensor networks. The overview of the schemes proposed by different scholars for the improvement of localization in wireless sensor networks is also presented. Experiments were performed in a testbed area containing anchor and blind nodes deployed in it to characterize the pathloss exponent and to determine the localization error of the algorithm. Details regarding the implementation of new algorithm are also discussed in this paper.

Abstract: Fixed systems used in cooperative communication suffer from multiplexing loss and low spectral efficiency due to the half duplex constraint of relays. To improve the multiplexing gain, successive relaying is proposed. This allows concurrent transmission of the source and relays. However, the severe inter-relay interference becomes a key challenge. Here Rate Adaptation for Time Varying Channels Using Distributed Relay Selection is proposed, which is capable of adapting the relay’s rate using distributed relay selection.

Abstract: Power system is facing new challenges as the present system is subjected to severely stressed conditions. Voltage instability is a quite frequent phenomenon under such a situation rendering degradation of power system performance. In order to avoid system blackouts, power system is to be analyzed in view of voltage stability for a wide range of system conditions. In voltage stability analysis, the main objective is to identify the system maximum loadability limit and causes of voltage instability. Static voltage stability analysis with some approximations gives this information. Voltage stability problem is related to load dynamics and therefore di erent load characteristics are to be considered in the voltage stability analysis. This paper presents an efficient method for conducting line voltage stability analysis in power systems. This newly developed method is accurate, fast, simple, and theoretically proven for finding precise voltage collapse points and for determining voltage stability at each transmission line. Voltage stability margins can be easily calculated, providing an indication of how far the transmission line is from its severe load condition and allowing separate analysis if one transmission line is highly stressed. The proposed method was demonstrated on the IEEE 30-bus system and compared with existing methods to show its effectiveness and efficiency.

Abstract: In this paper the design fabrication and measurement of an ISM band (5.8GHz) wearable cotton textile patch antenna is presented. The substrate of the designed antenna was made by bed sheet cotton   textile material while the radiating element and ground plane was made by thin film copper foil. The copper foil was pasted by using synthetic resin adhesive on the textile (cotton) material. Cotton textile antenna impedance characteristics and radiation pattern characteristics were studied.

Abstract: The main objective of this proposed system is to provide Uninterruptible Power Supply to the load.  This proposed system mainly deals with the Energy Management of the DC microgrid System.  The Power sources employed in the proposed system composed of PV, and Diesel power generation system.  The storage system consists of the batteries, and has the EB system acts as a standby system, which delivers power only during the power failure conditions.  The RS 485 and ZigBee communication protocol, employed in the communication purposes.  The Energy Management System (EMS) incorporates the fuzzy control manages the State of Charge (SoC) of the battery. 

Abstract: The role of Distributed Generation (DG) is ever increasingly being recognized as a supplement and an alternative to large conventional Centralized Generation (CG). Besides, there is also a debate regarding the genuine prospects of DG; always prevailed between industry stakeholders and other interest groups. Within the scope of this review, a comparative study of CG and DG has been presented. In this report, a broad spectrum of issues is being considered to depict the paradigm, drives, shortcomings and future challenges for CG and DG.