Markus Rupp – författare

This excellent reference provides detailed analysis and optimization aspects of live 3G mobile communication networks Video and Multimedia Transmissions over Cellular Networks describes the state-of-the-art in the transmission of multimedia over cellular networks, evaluates the performance of the running system based on the measurements and monitoring of live networks, and finally presents concepts and methods for improving of the quality in such systems.Key Features: Addresses the transmission of different media over cellular networks, with a focus on evolving UMTS transmission systemsProvides in-depth coverage of UMTS network architecture, and an overview of 3GPP video servicesDescribes the characteristics of the link layer errors in the UMTS Terrestrial radio Access Network (UTRAN), obtained by extensive measurements in live UMTS networksCovers video encoding and decoding, introducing H.264/AVC video codec, as well as addressing various novel concepts for increased error resilienceDiscusses the real-time capable algorithms that are suitable for implementation in power and size limited terminals Presents the methods for monitoring quality, as well as analyzing and modelling traffic evolution in the cellular mobile networkThis book provides a valuable reference for researchers and students working in the field of multimedia transmission over wireless networks.  Industry experts and professionals working within the field will also find this book of interest.

This book explains how the performance of modern cellular wireless networks can be evaluated by measurements and simulations With the roll-out of LTE, high data throughput is promised to be available to cellular users. In case you have ever wondered how high this throughput really is, this book is the right read for you: At first, it presents results from experimental research and simulations of the physical layer of HSDPA, WiMAX, and LTE. Next, it explains in detail how measurements on such systems need to be performed in order to achieve reproducible and repeatable results. The book further addresses how wireless links can be evaluated by means of standard-compliant link-level simulation. The major challenge in this context is their complexity when investigating complete wireless cellular networks. Consequently, it is shown how system-level simulators with a higher abstraction level can be designed such that their results still match link-level simulations. Exemplarily, the book finally presents optimizations of wireless systems over several cells.This book: Explains how the performance of modern cellular wireless networks can be evaluated by measurements and simulationsDiscusses the concept of testbeds, highlighting the challenges and expectations when building themExplains measurement techniques, including the evaluation of the measurement quality by statistical inference techniquesPresents throughput results for HSDPA, WiMAX,  and LTEDemonstrates simulators at both, link- level and system-levelProvides system-level and link-level simulators (for WiMAX and LTE) on an accompanying website (https://www.nt.tuwien.ac.at/downloads/featured-downloads)This book is an insightful guide for researchers and engineers working in the field of mobile radio communication as well as network planning. Advanced students studying related courses will also find the book interesting.

Dieses Buch thematisiert die wichtigsten Umstrukturierungen für Treasury Organisationen in den Bereichen Cash- und Liquiditätssteuerung, Risikomanagement, Finanzierung sowie Governance und Operations. Die Autoren beschreiben Lösungswege, wie sich vor dem Hintergrund der gewandelten Rahmenbedingungen die Struktur eines effizienten Corporate Treasuries gestalten lässt. Zu diesem Zweck verschaffen sie dem Zielpublikum der Treasury Manager ein Bild von aktuellen Trends und illustrieren dies mit aktuellen Praxisbeispielen. Zielgruppe sind insbesondere anwendungsorientierte Praktiker und Teilnehmer von Weiterbildungsmaßnahmen (etwa des Lehrgangs zum Swiss Certified Treasurer (SCT)® am IFZ der Hochschule Luzern). Der Mehrwert des praxisorientierten Sammelbandes besteht darin, dass aktuelle Entwicklungen sehr praxisnah vermittelt werden und auf allfälliges Optimierungspotenzial bestehender Treasury-Organisationen hingewiesen wird.

Die Unternehmensumwelt hat sich grundlegend gewandelt. Auf die Pandemie folgt als nächste Bewährungsprobe die Inflation. Die hohen Inflationsraten haben finanzielle Auswirkungen auf Unternehmen und ihre Stakeholder, weil Umstrukturierungen, Effizienzsteigerungen und Liquiditätsmanagement an Relevanz gewinnen, um der Inflation entgegenzuwirken. Die Preis- und Mengeneffekte der Inflation wirken sich auf alle Wertschöpfungsstufen im Unternehmen aus, was wiederum die Unternehmenssteuerung, insbesondere das Financial Reporting beeinflusst. In den Unternehmen resultiert daraus eine große Unsicherheit, da oftmals Erfahrungswerte im Umgang mit der Inflation fehlen.CFO, Corporate Treasurer und die Finanzfunktion im Allgemeinen müssen sich intensiv mit den Konsequenzen der Inflation auseinandersetzen und gezielte Maßnahmen zur Inflationsbekämpfung ergreifen. Der Quick Guide Inflations-Management bietet konkrete Lösungsansätze sowie operative und strategische Instrumente zur Inflationsbekämpfung und stellt Maßnahmen zum Aufbau von Inflationsresilienz vor.Aus Sicht der Finanzfunktion wird anhand von Beiträgen aus den Bereichen Inflation Management, Inflation Finance, Inflation Controlling und Accounting Inflation aufgezeigt, wie die Finanzfunktion die Inflation über die gesamte Wertschöpfungskette zielgerichtet bekämpfen kann.

This book introducesthe Vienna Simulator Suite for 3rd-Generation Partnership Project(3GPP)-compatible Long Term Evolution-Advanced (LTE-A) simulators and presentsapplications to demonstrate their uses for describing, designing, and optimizingwireless cellular LTE-A networks.Part One addresses LTEand LTE-A link level techniques. As there has been high demand for the downlink(DL) simulator, it constitutes the central focus of the majority of thechapters. This part of the book reports on relevant highlights, includingsingle-user (SU), multi-user (MU) and single-input-single-output (SISO) as wellas multiple-input-multiple-output (MIMO) transmissions. Furthermore, itsummarizes the optimal pilot pattern for high-speed communications as well asdifferent synchronization issues. One chapter is devoted to experiments thatshow how the link level simulator can provide input to a testbed. This sectionalso uses measurements to present and validate fundamental results onorthogonal frequency division multiplexing (OFDM) transmissions that are notlimited to LTE-A. One chapter exclusively deals with the newest tool, theuplink (UL) link level simulator, and presents cutting-edge results.In turn, Part Twofocuses on system-level simulations. From early on, system-level simulations havebeen in high demand, as people are naturally seeking answers when scenarioswith numerous base stations and hundreds of users are investigated. This partnot only explains how mathematical abstraction can be employed to speed upsimulations by several hundred times without sacrificing precision, but alsoillustrates new theories on how to abstract large urban heterogeneous networkswith indoor small cells. It also reports on advanced applications such as trainand car transmissions to demonstrate the tools’ capabilities.