Signal Processing Techniques for 6G

Lorenzo Mucchi; Shahriar Shahabuddin; Mahmoud A M Albreem; Saeed Abdallah; Stefano Caputo; Erdal Panayirci; Markku Juntti

doi:10.1007/s11265-022-01827-7

Signal Processing Techniques for 6G

J Signal Process Syst. 2023;95(4):435-457. doi: 10.1007/s11265-022-01827-7. Epub 2023 Feb 2.

Authors

Lorenzo Mucchi¹, Shahriar Shahabuddin^{2

3}, Mahmoud A M Albreem⁴, Saeed Abdallah⁴, Stefano Caputo¹, Erdal Panayirci⁵, Markku Juntti³

Affiliations

¹ Florence, 50139 Italy Dept. of Information Engineering, University of Florence.
² Dallas, 75019 TX USA Mobile Networks, Nokia.
³ Oulu, 90014 Finland Centre for Wireless Communications, University of Oulu.
⁴ Sharjah, 27272 UAE Dept. of Electrical Engineering, University of Sharjah.
⁵ Istanbul, 34083 Turkey Dept. of Electrical and Electronics Engineering, Kadir Has Univ.

Abstract

6G networks have the burden to provide not only higher performance compared to 5G, but also to enable new service domains as well as to open the door over a new paradigm of mobile communication. This paper presents an overview on the role and key challenges of signal processing (SP) in future 6G systems and networks from the conditioning of the signal at transmission to MIMO precoding and detection, from channel coding to channel estimation, from multicarrier and non-orthogonal multiple access (NOMA) to optical wireless communications and physical layer security (PLS). We describe also the core future research challenges on technologies including machine learning based 6G design, integrated communications and sensing (ISAC), and the internet of bio-nano-things.

Keywords: 6G; Internet of bio nano things; MIMO; Optical wireless communications; Signal processing.