Abstract

BLANCO ORTA, Jorge Luis; GUERRA MARTINEZ, María del Carmen  and  MARANTE RIZO, Francisco Reinerio. OTFS performance analysis to improve architecture flexibility for 6G. EAC [online]. 2021, vol.42, n.3, pp.18-30.  Epub Dec 10, 2021. ISSN 1815-5928.

This article makes a study on the modulation in the orthogonal time-frequency space (OTFS) and its influence on the development of wireless networks, to achieve greater data transmission, flexibility, and reliability for the deployment of the sixth generation (6G), due to the benefits that this modulation can provide for environments with high-frequency dispersion. Offering the possibility of covering localized delays and Doppler degradations, converting the selective time-frequency (TF) channels into an invariant channel in the delay-Doppler domain (DD). This will be possible thanks to the fact that it is a new two-dimensional (2D) modulation scheme, where the information symbols are multiplexed in the DD domain instead of the TF domain, about traditional modulation techniques. Defining the security and privacy challenges that may arise for the new network architecture, applications, and enabling technologies, given the new requirements that will be established for 6G. The study is carried out to improve data transmission, as this is a key technology to address similar problems in future massive multiple-input and multiple-output (MIMO) systems, due to the ability provided by this modulation to transform a channel that randomly fades within the frequency-time slot on a non-random, non-fading stationary channel between the transmitter and receiver.

Keywords : OTFS; 6G; delay-Doppler; TF; MIMO.

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