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Physical-Layer Algorithms

The Institute pursues research on physical layer algorithms in modern mobile radiocommunication sys-
tems. They are connected with multitone modulation using orthogonal (OFDM) and non-orthogonal
subcarriers (FBMC) and non-contiguous, fragmented spectrum bands. Research work is directed towards
the minimization of the out-of-band emission, reduction of non-linear distortions, reliable reception of
signals and synchronization algorithms. Another field of studies encompasses channel coding using vari-
ous types of error correction codes, namely, convolutional codes, turbo codes, selected types of LDPC
codes and polar codes with several decoding algorithms. Moreover, bit-interleaved coded modulation
with iterative decoding is investigated. Applications and improvements of transmission and reception
diversity techniques are also being explored, in particular Multiple-Input, Multiple-Output (MIMO) and
massive MIMO (M-MIMO) technologies, and beamforming algorithms in antenna matrices.