Research
Designing and Analysis of T-Shape Microstrip Antenna for the 4G Systems
In this paper, the designing and analysis of T-shape microstrip patch antenna presented. The shape will provide the broad bandwidth which is required for the operation of fourth generation wireless systems. The operating frequency of antenna is 2.5 GHz, the dielectric constant and thickness of the antenna is 4.2, 1.6mm respectively. The simulation results of antenna are done by the help of IE3D Zeland Software (Version 12.0) and MATLAB programming. For the analysis of antenna we used the popular Finite difference time domain method (FDTD). This antenna is fed by a co-axial probe feeding. In this paper, the effects of different types of antenna parameters like return loss, voltage standing wave ratio (VSWR), impedance etc. are also studied.
n-Rayleigh Distribution in Mobile Computing for Flat-Fading Channel
In wireless communication, the presence of reflectors, obstacles etc, the signal experiences variation in characteristics like amplitude and frequency is known as fading channel [1]. This paper, explain the importance of Rayleigh distributed random variables in mobile computing field. At present time in emerging wireless technology, n-Rayleigh distribution has played an important role. The concept of random process in communication is expansion of cdf and pdf which are mostly used in application of physical science, statistics, and experimental data collection in wireless environment, random modeling and estimation of fading channel.
