Coverage Prediction of an AP by using SINR Analysis and Users Density Estimation

In W-LANs a single hop is all that is necessary or in fact acceptable. The region of connectivity around a given source is known as its coverage area. Commonly, a source and a destination may communicate using one or more intermediate relays, in which case a path through the network must be found where each hop has a SINR greater than ß. There are several ways to portray and quantify network connectivity, but at the core, they all require that individual pairs be are able to communicate, which is dictated by the SINR. This paper is going to take a survey on AP coverage based on interference analysis (within a cell for connected nodes) and user density estimation but also it will try to determine the radial distance where the far distance user is tolerable to interfere with a near user (Near far effect) to the AP in perspective of received signal strength and channel fading. Keywords: SINR, users’ density, ß, coverage  

Development of an Algorithm for Optimizing Array Antenna Elements for Cellular Networks Using Evolutionary Computation

This research article published by International Journal of Digital Information and Wireless Communications, Vol. 9, No. 2, 2019The discussion on a number of important issues and the state-of-the-art development of the model for optimizing antenna array element was done. An optimal radiation pattern as well as minimum side lobes levels were obtained for a rectangular antenna array using the hybridization of particle swarm and genetic algorithm optimization technique. A set of normalized complex and phase shift weights were generated by the developed optimization algorithm and the bound constrained fitness function that allows the optimization for non-uniform element spacing was presented. A comparison between the un-optimized pattern and the one optimized for minimization of SLL using the model developed in this research was also presented, the results show that the latter achieves a better and more consistent radiation pattern as well as non-complexity flow of the developed model itself. Lastly the study proposed multi-beam antenna architecture for multi-RAT (Radio Access Technology) interworking which is key enabling technology for 5G vision

Gain improvement of the Yagi-Uda Antenna Using Genetic Algorithm for Application in DVB-T2 Television Signal Reception in Tanzania

Research Article published by Journal of Interdisciplinary Sciences Volume 1, Issue 1; November 2017A Yagi-Uda Antenna, commonly known simply as a Yagi antenna or Yagi, is a directional antenna system consisting of an array of dipole and additional closely coupled parasitic elements (usually a reflector and one or more directors) (Dubey and Zafar, 2014). The second dipole in the Yagi-Uda array is the only driven element with applied input/output source feed, all the others interact by mutual coupling since receive and radiate electromagnetic energy, they act as parasitic elements by the induced current Dubey and Zafar (2014). It is assumed that an antenna is a passive Reciprocal device, then may be used either for transmission or for reception of the electromagnetic energy this well applies to Yagi-Uda also (Dubey and Zafar, 2014). These antennas are directional along the axis perpendicular to the dipole in the plane of the elements, from the reflector toward the driven element and the director(s). A Yagi-Uda Antenna is a widely used Antenna design due to its high forward gain capability, low cost and ease to construction (Balanis, 2011). It is commonly used as a roof top television receiver. Basically as antenna is a real system that matches or coupled the energy to the free space. One element is energized directly by

Investigation and analysis of the effects of geometry orientation of array antenna on directivity for wire-less communication

Research Article published Cogent EngineeringArray antennas offer a wide range of opportunities in the variation of their directivity patterns through amplitude and phase control. Directivity is one of very important parameters when optimizing Antenna. This paper intends to investigate the effects of different geometries of array antenna on directivity and side lobe levels. A six by four antenna array was chosen for investigation with uniform element spacing between the elements and the results were presented for each selected geometry, Array elements of dipole and patch antenna were chosen for the investigation and analysis. An analysis of the effect of the chosen antenna array was done by investigating its response when an incident emw (electromagnetic waves) from a mobile phone impinge on the array antenna where the tapering and beam-forming techniques were used for analysis and results presented

Development of an Access Point Positioning Algorithm under the Changing in Environment and Users’ density Estimation

A research article was published by Asian Journal of Computer and Information Systems, Volume 02 – Issue 03, June 2014In many wireless networks a single hop is all that is needed or in fact tolerable. The physical region where network is available is known as a coverage area. Generally, a transmitter and a receiver may exchange data by using one or more intermediate relays. In each case a path through the network must be found whereby each hop has a Signal to Interference Noise Ratio greater than ß. There are several ways to describe and compute network connectivity, but at the core, they all need that individual pairs are able to communicate, which is dictated by the SINR. This paper is going to develop an Access Point positioning algorithm by considering the changes of environment and users’ density estimation