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Project: Multilayer Massive Multiple input Multiple output (MIMO) systems for the fifth generation (5G) wireless communications

Acronym: MM5G
Main Objective:
1. Design a m-MIMO system using large and dense constellations, Nyquist filtering close to the minimum band for high spectral efficiency and non linear amplifiers (NLAs) for high power efficiency, while maintaining low complexity.
2. Design a transmitter able to deal with large constellations by splitting them as sum of Offset Quadrature Phase-Shift Keying (OQPSK)-type signals with a reduced dynamic range leveraged by MM techniques specially designed to control the outer and inner envelope of each OQPSK bandwidth-limited signal, guaranteeing a ring shape (close to an empty circumference) of the final IQ transition diagram allowing for the use of NLAs.
3. Design of low-complexity m-MIMO architectures for joint amplification, BF and/or SM that are compatible with low-cost, power-efficient NLAs.
4. Design of receivers using FDE that tackle the effects of the transmitter’s impairments (e.g. nonlinear amplification and MM distortion, correlation between antenna elements), the multipath characteristics of the mm-Wave channel and, most important, able to separate SM’s data streams.
Reference: UID5008
Funding: FCT
Start Date: 01-10-2016
End Date: 01-11-2018
Team: Paulo Miguel Araújo Borges Montezuma de Carvalho, Marco Alexandre Cravo Gomes, Vitor Manuel Mendes da Silva, Pedro Daniel Rosete Bento, Francisco Antonio Bucho Cercas, Mário Pedro Guerreiro Marques da Silva, João Francisco Martinho Ledo Guerreiro
Groups: Multimedia Signal Processing – Co, Radio Systems – Lx
Local Coordinator: Paulo Miguel Araújo Borges Montezuma de Carvalho

Associated Publications