Rate-Splitting as Enabler for 6G Service Heterogeneity

Tutor: Bho Matthiesen
Type of Thesis: Project (MSc), Master's thesis (MSc)
date of issue: -
Student: -
Status: available

The performance of contemporary wireless communication systems is essentially limited by interference. State-of-the-art systems rely on orthogonal multiple access (OMA) techniques where interference is treated as additional noise, e.g., 5G systems, millimeter wave MIMO, massive MIMO, and CoMP. Another interference mitigation strategy known as non-orthogonal multiple access (NOMA) is to fully decode interference.

These two interference management techniques are complimentary and can be combined by the rate splitting multiple access scheme (RSMA). The general idea is to split messages and transmit them non-orthogonally in common messages that are decoded by multiple receivers and private messages decoded only by their corresponding receiver and treated as noise otherwise. This results in an extremely versatile transmission framework with similar receiver complexity as NOMA but much higher robustness against changing conditions that will be a key enabling technology for beyond 5G systems.

Current research on RSMA focuses on enhanced mobile broadband (eMBB) type traffic and the evaluation of achievable rates and energy efficiency. However, RSMA also offers great opportunities to enable service heterogeneity and incorporate, e.g., ultra reliable communication along with eMBB traffic. The goal of this thesis is to model such a use case and evaluate its performance. This requires knowledge in communications theory, strong mathematical and analytical skills, and prior exposition to optimization theory.

This thesis is preferably written in English. Supervision is also possible in German if desired.

Last change on 16.11.2020 by B. Matthiesen
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