In this paper, we experimentally compare orthogonal frequency-division multiplexing (OFDM) and on-off keying (OOK) modulation in the context of the IEEE 802.15.13-2023 standard at bandwidths up to 50 MHz across a Li-Fi link with distances up to 5 m and a lateral offset up to 51°. Error vector magnitude …

We developed and tested a teaching case and teaching note on the challenges that a small sustainable fashion brand faces when implementing a circular business model. We target bachelor and master students of international business, entrepreneurship, strategic management, circularity/sustainability courses. …

The transmission of constant-envelope orthogonal frequency division multiplexing (CE-OFDM) signals, based on electrical phase modulation, was shown to improve the tolerance to noise and the nonlinearity introduced by light-emitting diodes (LEDs) in visible light communication (VLC) systems. This allows …

In this paper, artificial intelligence tools are implemented in order to predict trajectory positions, as well as channel performance of an optical wireless communications link. Case studies for industrial scenarios are considered to this aim. In a first stage, system parameters are optimized using a …

The nonlinearity induced by light-emitting diodes in visible light communication (VLC) systems presents a challenge to the parametrization of orthogonal frequency division multiplexing (OFDM). The goal of the multi-objective optimization problem presented in this study is to maximize the transmitted …

A rise in global population and welfare is depleting the earth’s resources and challenging the current predominantly linear economy, following a take-make-waste pattern, calling upon a shift towards a more circular economy (Bastein and Willems, 2019; Ellen MacArthur Foundation, 2013; Lüdeke-Freund et …

Introduction The growing availability of data offers plenty of opportunities for data-driven innovation of business models. This certainly applies to interactive media companies. Interactive media companies are engaged in the development, provisioning, and exploitation of interactive media services and …

Es geht um den Zusammnhang zwischen Kommunkation und dem Smartphone 

World-wide, shortages of primary care physicians and an increased demand for services have provided the impetus for delivering team-based primary care. The diversity of the primary care workforce is increasing to include a wider range of health professionals such as nurse practitioners, registered nurses …

Die Theorie der Transaktionskosten besagt, dass man als Unternehmen interne und externe Zusammenarbeit billiger als auf dem Markt regeln muss. Existenzgründe eines Unternehmens basieren auf der Tatsache, dass die innerbetrieblichen Prozesse besser und billiger realisiert werden können als es außerbetriebliche, …