This thesis focuses on the fundamental physical layer modeling of multi-hop communications in the THz band and corresponding system optimization. An intensive quantitative modeling and analysis is necessary to demonstrate the performance improvement of multi-hop links compared to the conventional si...
"METAVERSE" ((META=BEYOND) and (VERSE=UNIVERSE)) originated in the science fiction novel “Snow Crash” by Neal Stephenson in 1992. Metaverse is a network of connecting physical and virtual world seamlessly, realized thanks to the convergence of key emerging technologies such as Extended Reality (XR) ...
Location information is vital for many applications across various domains where some of the applications, such as industrial asset tracking, autonomous driving, and process automation, require highly accurate position estimation . Location information can be obtained by various approaches including...
The Coordinated Research Center "Empatho-Kinaesthetic Sensory Systems" (EmpkinS) is working on the development of wearable sensors with limited size for non-invasive detection of biomedical processes. Wireless power transfer (WPT) is a promising technique that enables efficient remote recharging of ...
The substantial growth of the number of Internet-of-Things (IoT) devices in the recent years has motivated the research on the optimal design of far field wireless power transfer (WPT) systems, which enable efficient recharging of the batteries of small low-power devices. To increase the amount of p...
Recent advances in the drone industry have led to increased interest in using unmanned aerial vehicles (UAVs) for wireless communication purposes. However, limited power remains the big issue, as in such missions, endurance is of paramount importance. In this context, free-space optics (FSO) seems to not only offer a way to transfer high data rates but also a key technology to provide energy to flying platforms.
Molecular communications (MC) is an emerging communications approach with many interdisciplinary applications in industry and medicine. MC can be used in environments, where classical communication using electromagnetic waves is not feasible. Applications of particular interest are infrastructure mo...
Free space optical (FSO) systems due to their large bandwidth, secure and cost-efficient data transmission are considered as suitable candidates for next generation wireless communication networks and beyond. However, the limiting factor in such systems is the requirement of a line-of-sight (LOS) li...
Recently, the application of communication engineering principles to biomedical problems has spawned the emerging interdisciplinary research field of molecular communication (MC). MC is ubiquitous in natural biological systems and has a high potential for bio-medical applications such as targeted dr...
Many applications of digital signal processing rely on multiplications of a stream of unknown vectors with a single fixed matrix. Examples of such applications include MIMO precoding in a wireless communication system, signal detection, and machine learning using, e.g., an artificial neural network....
