Open Topics in the Area of Software Defined Radio, Cellular Networks, High-Altitude Platforms, Meshed Networks

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Software Defined Radio (SDR) for Computing Network Nodes

Supervisor: Juan Cabrera

Radio communication systems used to be implemented mostly with hardware solutions. It was difficult to make quick changes since they involved hardware replacement, e.g., filters, and modulators, and demodulators. This changed in the later years with Software Defined Radios SDR. This technology allows developers to build up complete radio communication stacks with off-the-shelf hardware. At the Comnets Chair, we have access to a testbed of multiple SDR devices that allows us to test a plethora of communication schemes for communication networks. We are interested in deploying and evaluating the performance of multiple communication schemes for wireless network nodes that perform computation, storage, and transport of information. These types of nodes tend to be at the edge of the network, and using them for computation and storage can drastically reduce latency and increase the reliability of communication.

Study of cloud radio access network and edge computing in High-Altitude Platforms (HAP) and nanosatellites

Supervisor: Riccardo Bassoli

High-Altitude Platforms (HAP) and nanosatellites represent the new way to provide connectivity and computing in remote/tactical areas, where no infrastructure is available. This can also become a useful solution in urban areas in case of natural disasters (e.g. earthquakes). However, HAP-based or satellite-based cloud radio access network open various fundamental challenges in edge computing and network virtualisation. The thesis’ work will be devoted to study, analyse and test (via simulation) specific characteristics of these systems. The details of the thesis’ topic and the level of the targets will be adapted according to the student’s preferences, motivation and talent.

Cellular Mobile Communication

Study and Development of eSIM Infrastructure for IoT Devices in 5G

Supervisor: Thomas Höschele

While GMSA has successfully specified and rolled out the SGP.22 standard, which enables remote provisioning of eSIM for smartphones; the final version of the SGP.32 standard is still in development. The SGP.32 standardizes the remote provisioning of IoT devices, which is very important to support cellular use cases for industrial scenarios like warehouses and manufacturing. As these IoT devices will have limit input capabilities the provisioning process faces challenges. The thesis aims to integrate, qualify and extend open source tools for  an architecture to provisioning eSIM on 5G-Devices and develop a way to provision eSIM in the IoT world. The details of the thesis’ topic and the level of the targets will be adapted according to the student’s preferences, motivation and talent.

Simplified IMS in Private 5G Networks

Supervisor: Thomas Höschele

Voice communication is a major feature of 5G networks. Within the 5G-Core the IP Multimedia Subsystem (IMS) is responsible for voice calls and voice transfer (Voice over NR). A typical IMS is a heavily large function, even comparable to the 5G core itself. Particularly for private 5G networks which require a lean core installation this would be too much. A solution is a simplified IMS, only consisting of the minimal necessary functionalities, procedures and services to enable voice calls a connection to a SIP client. The thesis aims to develop, implement and test a simplified IMS in a private 5G network enabling native voice calls. The details of the thesis’ topic and the level of the targets will be adapted according to the student’s preferences, motivation and talent.

Wireless Meshed Networks

No prepared topics here.

You haven’t found anything interesting for you? This does not mean that there aren’t any interesting topics at our chair! Please contact Tung. He will help you to get in contact with a suitable supervisor. We will then create an individual topic that also fits your interest 😉