International Journal of Computational Intelligence Techniques

76-78

Authors: SINGH S., KUMAR M., PRASAD S.V.A.V

The 3rd generation standard has adopted orthogonal frequency division multiplexing access (OFDMA) in downlink and single carrier-frequency division multiple access SC-FDMA used for the uplink transmissions, which is used single carrier modulation and frequency domain equalization. In this paper, we proposed a roll-off-factor scheme to reduce the peak-to-average power ratio (PAPR) of SC-FDMA signals. Moreover, the scheme can compress the large amplitude of signal, its maintaining the average constant power of signal. Using the Matlab simulation results show that the proposed roll-off-factor scheme can offer better PAPR reduction by properly choosing the control parameters. The proposed our companding scheme transform the original SCFDMA signals into power distributed function. The companding scheme can reduce the large amplitude signals, and its maintaining constant average power.

82-85

Authors: BANSAL S

Spamming is the practice of sending mass mailings to large numbers of people who have no relationship with the sender and who did not ask for such emails. Growing volume of spam mails has generated a need for development of filter detecting unsolicited emails. Many spam filtering techniques have made considerable progress in recent years. The predominant approaches include data mining methods and machine learning methods. Many techniques applied to text categorization like machine learning, information retrieval but they have the difficulty of high dimensionality. Many Spam filtering techniques have been proposed in the literature. But the performance of spam filters depends on the methods applied for reducing the dimensionality is still a challenging task. In this paper, we compare the vector space model which depends on “bags of words” and probabilistic model which depends on the probability. The results possess simplicity, flexibility, performance and formalism of the probabilistic model is more as compared to the vector space model.

90-98

Authors: PATEL R.B., JAIN D

Wireless sensor network (WSN) is envisioned as an economically viable paradigm and a promising technology because of its ability to provide a variety of services, such as intrusion detection, weather monitoring, security, tactical surveillance, and disaster management. In this article we present a Scalable Agent Pedestal (SAP) for WSNs. In SAP mainly mobile agent (MAs) are used to manage the WSNs. It provides common solution to WSNs fault tolerance, load balancing, energy & end-to-end network delay problems. SAP gives true distributed computing and communication environment with the help of MAs. It supports code mobility over the mobile/fixed base station (BS) and sensor node (SNs). A comparative study is also made.

102-106

Authors: RAO S.K., PRASAD A.B., SHETTY A.R., CHINMAI, HEGDE R., BHAKTHAVATHSALAM R

A smart navigation system based on an object detection mechanism through real time video processing has been designed to detect the presence of obstacles that impede its movement. This paper is discussed keeping in mind the navigation of the visually impaired. A PAL video camera feeds image frames pertaining within its vicinity at a rate of 30 fps to a Da-Vinci Digital Media Processor, DM642. The processor carries out image processing techniques on every frame and the result contains information about the object in terms of image pixels. The algorithm aims to select that object, among others detected in the frame, which poses maximum threat to the navigation. The selected object then translates to one out of three sounds, whose pitch informs navigator about the obstacles’ relative threat. This paper implements a more efficient algorithm compared to its predecessors.

112-113

Authors: THAKUR O.P. , DWARI S., KUSHWAHA A.K

Modern wireless technology has put a lot of emphasis on slim size and reliability, image processing, internetworking across the globe, making technology to be more intelligent and sophisticated to provide all time communication which should be cost effective, noise free, futuristic and robust. Micro strip technology can make antenna smaller in size and conformal to system component. With the use of Micro strip technology we can design an antenna which can transmit and receive the signal with greater reliability. But due to surface wave radiation the bandwidth becomes smaller, therefore to eliminate this drawback we use photonic band gap structure of substrate material to enhance the bandwidth and gain. In this paper we illustrate the methodology, design and simulation to implement such antenna to provide greater bandwidth for future communication system.