2026-04-13T05:50:03Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/1028952026-02-07T11:12:59Zcom_2072_1033col_2072_452950

00925njm 22002777a 4500 dc Pérez Neira, Ana Isabel author Caus, Marius author Rostom, Zakaria author Le Ruyet, Didier author Kofidis, Eleftherios author Haardt, Martin author Mestre, Xavier author Cheng, Yao author 2016-11-01 Next-generation communication systems have to comply with very strict requirements for increased flexibility in heterogeneous environments, high spectral efficiency, and agility of carrier aggregation. This fact motivates research in advanced multicarrier modulation (MCM) schemes, such as filter bank-based multicarrier (FBMC) modulation. This paper focuses on the offset quadrature amplitude modulation (OQAM)-based FBMC variant, known as FBMC/OQAM, which presents outstanding spectral efficiency and confinement in a number of channels and applications. Its special nature, however, generates a number of new signal processing challenges that are not present in other MCM schemes, notably, in orthogonal-frequency-division multiplexing (OFDM). In multiple-input multiple-output (MIMO) architectures, which are expected to play a primary role in future communication systems, these challenges are intensified, creating new interesting research problems and calling for new ideas and methods that are adapted to the particularities of the MIMO-FBMC/OQAM system. The goal of this paper is to focus on these signal processing problems and provide a concise yet comprehensive overview of the recent advances in this area. Open problems and associated directions for future research are also discussed. Peer Reviewed Postprint (author's final draft) Mobile communication systems FBMC/OQAM. MIMO precoder/decoder design Multi-stream transmission Channel estimation Comunicacions mòbils, Sistemes de MIMO signal processing in offset-QAM based filter bank multicarrier systems