General rank beamforming using full rate real-value OSTBC for multicasting networks
Conference: WSA 2020 - 24th International ITG Workshop on Smart Antennas
02/18/2020 - 02/20/2020 at Hamburg, Germany
Proceedings: ITG-Fb. 291: WSA 2020
Pages: 5Language: englishTyp: PDFPersonal VDE Members are entitled to a 10% discount on this title
Taleb, Dima; Pesavento, Marius (Communication Systems Group, Technische Universität Darmstadt, Darmstadt, Germany)
In multicasting networks, a multiple antennas base station broadcasts the same information to a single group of single-antenna users. In this paper we propose a novel approach to address the problem of insufficient degrees of freedom in multicasting networks and provide general rank beamforming solutions. Our beamforming technique is based on real-valued full rate orthogonal space-time block codes. The quality of service optimization problem is solved and the beamforming solutions are combined with real-valued OSTBC code. Simple symbol-by- symbol decoding can be used efficiently at each network user to retrieve the transmitted information. Simulation results demonstrates a superior performance compared with the state-of- the-art design especially for networks with large number of users.