Beam-Based Resource Allocation in THz-NOMA Networks
Konferenz: WSA & SCC 2023 - 26th International ITG Workshop on Smart Antennas and 13th Conference on Systems, Communications, and Coding
27.02.2023–03.03.2023 in Braunschweig, Germany
Tagungsband: ITG-Fb. 308: WSA & SCC 2023
Seiten: 6Sprache: EnglischTyp: PDF
Autoren:
Ding, Zhiguo (Khalifa University, UAE & University of Manchester, UK)
Poor, H. Vincent (Princeton University, Princeton, US)
Inhalt:
This paper investigates how to apply non-orthogonal multiple access (NOMA) as an add-on in terahertz (THz) networks. In particular, prior to the implementation of NOMA, it is assumed that there exists a legacy THz system, where spatial beams have already been configured to serve legacy primary users. The aim of this paper is to study how these pre-configured spatial beams can be used as a type of bandwidth resources, on which additional secondary users are served without degrading the performance of the legacy primary users. A joint beam management and power allocation problem is first formulated as a mixed combinatorial non-convex optimization problem, and then solved by two methods with different performancecomplexity tradeoffs, one based on the branch and bound method and the other based on successive convex approximation.