Markus Rupp

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 introduces the Vienna Simulator Suite for 3rd-Generation Partnership Project (3GPP)-compatible Long Term Evolution-Advanced (LTE-A) simulators and presents applications to demonstrate their uses for describing, designing, and optimizing wireless cellular LTE-A networks. Part One addresses LTE and 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 the chapters. This part of the book reports on relevant highlights, including single-user (SU), multi-user (MU) and single-input-single-output (SISO) as well as multiple-input-multiple-output (MIMO) transmissions. Furthermore, it summarizes the optimal pilot pattern for high-speed communications as well as different synchronization issues. One chapter is devoted to experiments that show how the link level simulator can provide input to a testbed. This section also uses measurements to present and validate fundamental results on orthogonal frequency division multiplexing (OFDM) transmissions that are not limited to LTE-A. One chapter exclusively deals with the newest tool, the uplink (UL) link level simulator, and presents cutting-edge results. In turn, Part Two focuses on system-level simulations. From early on, system-level simulations have been in high demand, as people are naturally seeking answers when scenarios with numerous base stations and hundreds of users are investigated. This part not only explains how mathematical abstraction can be employed to speed up simulations by several hundred times without sacrificing precision, but also illustrates new theories on how to abstract large urban heterogeneous networks with indoor small cells. It also reports on advanced applications such as train and car transmissions to demonstrate the tools’ capabilities.

This book introduces the Vienna Simulator Suite for 3rd-Generation Partnership Project (3GPP)-compatible Long Term Evolution-Advanced (LTE-A) simulators and presents applications to demonstrate their uses for describing, designing, and optimizing wireless cellular LTE-A networks. Part One addresses LTE and 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 the chapters. This part of the book reports on relevant highlights, including single-user (SU), multi-user (MU) and single-input-single-output (SISO) as well as multiple-input-multiple-output (MIMO) transmissions. Furthermore, it summarizes the optimal pilot pattern for high-speed communications as well as different synchronization issues. One chapter is devoted to experiments that show how the link level simulator can provide input to a testbed. This section also uses measurements to present and validate fundamental results on orthogonal frequency division multiplexing (OFDM) transmissions that are not limited to LTE-A. One chapter exclusively deals with the newest tool, the uplink (UL) link level simulator, and presents cutting-edge results. In turn, Part Two focuses on system-level simulations. From early on, system-level simulations have been in high demand, as people are naturally seeking answers when scenarios with numerous base stations and hundreds of users are investigated. This part not only explains how mathematical abstraction can be employed to speed up simulations by several hundred times without sacrificing precision, but also illustrates new theories on how to abstract large urban heterogeneous networks with indoor small cells. It also reports on advanced applications such as train and car transmissions to demonstrate the tools’ capabilities.

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.