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This paper addresses the spatial-average analysis of uplink signal to interference ratio (SIR) and throughput in massive MIMO networks with maximum ratio combining (MRC). The analysis incorporates the effects of fractional power control (FPC) and other cells interference (ICI) due to estimation error in channel state information (CSI). Based on an asymptotic approach, tractable expressions are presented...
Simple information lookup tasks (e.g. “What the weather like in London?” or “What is the population of the UK?”), are currently well supported with traditional search engines, and more recently with intelligent personal assistants. Intensive knowledge tasks, (e.g. “How do countries with low GDP per capita rank in emigration?”), however, require combining and cross referencing data from multiple sources...
Hardware-based courses, like Robotics, require a lot of laboratory practice. Traditional laboratory exercises on a robotics course are held in a robotics laboratory equipped with proper hardware. Today, besides this kind of traditional laboratories, modern trends are virtual and remote laboratories where simulators are used. In this paper our experiences on the Robotics course, at the Faculty of Computer...
In this paper, energy efficient transmit antenna selection in underlay cognitive radio (CR) multiple-input multiple-output (MIMO) systems from a cross layer perspective, is investigated. Conventional energy efficient antenna selection optimizes an energy efficiency (EE) metric defined in terms of the system capacity and energy consumption, making it a physical layer criterion. In this work, we propose...
The trend of producing energy from Renewable Generation (ReGen) plants is greatly increasing. This leads to the objective of building future power generation system entirely based on renewable sources. Since the power output of ReGen plants, such as wind power plants (WPP), varies continuously and thereby the voltages in the distribution grid, an effective control system is required, to govern the...
With the recent developments in medicine and biology experiments a large amount of data is gathered in the form of multimedia elements (images, videos). Many algorithms have been developed and adapted based on the system of interest, and often the most challenging feature of the images may be used to facilitate a better analysis of the image. Herein, we developed an image analysis algorithm for quantification...
As cloud computing industry adoption rate is increasing, service cost management and optimization are becoming one of the most important issues from the perspective of cloud users. This paper is looking into possibility of using information about application type and its resource usage profile in the process of identifying optimized service placement in cloud environments. Such placement should result...
Iris recognition is a biometric authentication system proving vital for ensuring security and has been employed as an important case to test the algorithms developed in pattern recognition. The unique circular shape of the iris and its time invariance makes it a versatile technique that has an accuracy that can be mathematically proven. Here in this work we propose a new segmentation technique and...
Internet service providers are increasingly facing the growing demand for higher bandwidth to satisfy users demand. In the condition of overloaded, the web servers show delays in offering services until reaching total unavailability. There exist several approaches to deal with this problem, the core of them use the configuration of a web server in cluster, but offering the service as a single entity...
Physical exercising has always had an important impact on humans' health. Lack of motivation is one of the major reasons that keeps a person from exercising. To overcome this problem, new solutions are needed to provide weight watchers and fitness seekers motivation to exercise indoors. This paper presents iGym, a low cost and flexible system that enhances humans' workout experience. This system lets...
Over the top (OTT) video distribution is gaining momentum as many people have high speed internet access and an increased need for video and multimedia content absorption. On the other hand, the internet providers are also interested in monetizing the excess internet capacity that they provide to the end-users in a more efficient way. Digital television content can be very brittle in quality, depending...
This paper presents an advanced Security QoS provisioning module with vertical multi-homing and multi-streaming framework for 5G mobile terminals with radio network aggregation capability in next generation mobile and wireless broadband networks. The proposed mobile terminal framework is leading to high performance opportunities for multimedia services with high level of QoS provisioning and secure...
This document analyzes the impact of the Information Technology application in the companies in R. Macedonia. The impact on Project management is especially emphasized. The survey includes companies in R. Macedonia, with various number of employees that mostly run their business throughout the projects. The results from the survey could be useful for understanding business effectiveness of the companies...
This paper targets empirical voice and video quality assessment in mobile networks and presents fundamental QoS testing methods in correlation to RF indicators. The paper focuses on the most critical performance parameters for real-time services (e.g. voice) such as call drop vs. poor coverage in UMTS. The empirical study was based on a clearly defined drive test scenario with predetermined routes...
Nowadays, finding the Unmanned Aerial Vehicle (UAV) position in the absence of GPS is attractive and challenging problem in the research community. In this paper, we present a novel algorithm for mini UAV indoor localization based on distance measurements between the UAV and the existing infrastructure consisting of WiFi Access Points. Our algorithm uses two well-known techniques from the literature:...
There are a lot of scientific papers reporting a significant increase in classification accuracy after applying independent component analysis (ICA) for cleaning EEG data. Most of them, however, are focused on multidimensional data, recorded from a dense matrix of electrodes. When there are enough EEG channels, the benefits of ICA are straightforward — some of the components returned by ICA algorithm...
The paper presents a QoS framework for terminals with multi-RAT (multiple radio access technologies) interfaces for heterogeneous network environment. It investigates a QoS provisioning with vertical multi-homing and multistreaming features for 5G heterogeneous networks. The presented enhanced framework for 5G systems leads to better performance opportunities for multimedia services with very high...
G-TCP represents novel transport protocol designed to be used by Next Generation Networks. It engages famous Fibonacci sequence to calculate congestion window size when the protocol operates in congestion avoidance phase. Modification of window decrease parameter is introduced in order to improve protocol behaviour in high and low speed networks.
With the demand of power information construction and the application of D5000 platform, the standardization and management of all kinds of data becomes a necessary condition for data sharing and application integration between systems. In order to realize the safe, convenient and efficient information resource sharing of power enterprises and improve the information management level, the fusion method...
In order to improve the technical level of the grid state operation, the ant colony algorithm based on dynamic updating is proposed for the massive signal analysis in grid state system with the complexity of the structure and the high reliability. Though data mining and updating in dynamic correlation rules of device monitoring signals with evolutionary genetic algorithm, the correlation analysis...
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