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This chapter presents a flexible platform that supports prototyping up to 20 MHz bandwidth 128-antenna multiple input, multiple output (MIMO). It devotes theory, design, implementation, and prototyping of Massive MIMO for 5G communication systems. The chapter overviews the principles and theory of Massive MIMO. It describes the channel modeling system with a focus on specific phenomena of large sc
This report describes a bachelor thesis project realized as the final exercise in the Computer Science program at Lunds Tekniska Högskola, Campus Helsingborg. The thesis work was done as an Android app-development project at Telavox in Malmö, a company active in the IP-Telephony business. The purpose of the project was to develop an Android application to be used by the sellers at the company. The
Is contemporary media ecology an ecology that offers unprecedented freedom for producing participators, the "prod-users," or could it also be understood as an ecology in which various forms of user participation are in fact conditioned, or manufactured, by professional producers? Considering the increasing research attention paid to various notions of user participation, these questions become imp
This contribution concerns the development of generic methods and tools for robust optimal control of high-pressure liquid chromatographic separation processes. The proposed methodology exploits a deterministic robust formulation, that employs a linearization of the uncertainty set, based on Lyapunov differential equations to generate optimal elution trajectories in the presence of uncertainty. Co
Title: Interactivity & Engagement - Can Inbound marketing be applied to build customer engagement? Seminar date: 2019-01-17 Course: FEKH29 Business Administration: Bachelor Degree Project in Marketing Undergraduate Level Author: Felix Guve Samaras, Laura Stefanovic and Henric Karlsson Key words: Inbound Marketing, Customer Engagement, Interaktion, Content, Digital network. Purpose: To stu
This thesis explores the potential of broadening the scope of social movements for sustainability. The implicit assumptions of the causal mechanisms for strategic social change propose limits to what transformative social action can be, and risk overlooking untapped resources for change. To address these limitations I use Habermas’ critical social theories on public engagement, systemic rationalit
Background. Test automation is a widely used technique to increase the efficiency of software testing. However, executing more test cases increases the effort required to analyze test results. At Qlik, automated tests run nightly for up to 20 development branches, each containing thousands of test cases, resulting in information overload. Aim. We therefore develop a tool that supports the analysis
3-DOF Gantry Tau is a type of parallel robot, consisting of six struts configured in three clusters, which provides three translational DOFs. It has increasing industrial use in applications where large workspace and high stiffness are required. In fact, the concept of dynamic isotropy, where all the natural frequencies of a system are equal, can be employed in order to effectively optimize the ge
Low latency signal processing and high throughput implementations are required in order to realize real-time TDD massive MIMO communications, especially in high mobility scenarios. One of the main challenges is that the up-link and down-link turnaround time has to be within the coherence time of the wireless channel to enable efficient use of reciprocity. This paper presents a hardware architectur
Mobile communications have been undergoing a generational change every ten years or so. However, the time difference between the so-called "G's" is also decreasing. While fifth-generation (5G) systems are becoming a commercial reality, there is already significant interest in systems beyond 5G, which we refer to as the sixth-generation (6G) of wireless systems. In contrast to the already published
The effect of gate-length variation on key transistor metrics for vertical nanowire p-type GaSb metal-oxide-semiconductor field-effect transistors (MOSFETs) are demonstrated using a gate-last process. The new fabrication method enables short gate-lengths (Lg = 40 nm) and allows for selective digital etching of the channel region. Extraction of material properties as well as contact resistance are
OBJECTIVES: The National Board of Health and Welfare in Sweden published the national guidelines for Parkinson's Disease 2016. The aim of this study was to summarize this evidence review and development of the guidelines, focusing on the economic evaluation of device-aided therapies (deep brain stimulation, pump-based infusion of levodopa-carbidopa intestinal gel or apomorphine) for Parkinson's di
This paper sets out to create an implementation for fingerprint-based positioning using massive multiple-input multiple-output (MIMO) technology, by means of deep convolutional neural networks (CNN), and utilizing the wireless channel state information (CSI). Due to the sheer volume of computational requirements imposed by CNN processing, an accelerator-assisted design is well-suited to the task a
The recent interest in massive MIMO has spurred intensive work on massive MIMO channel modeling in contemporary literature. However, current models fail to take the characteristics of terminal antennas into account. There is no massive MIMO channel model available that can be used for evaluation of the influence of different antenna characteristics at the terminal side. In this paper, we provide a
