Experimental Study of Simplified UTW-OFDM Receiver Technology for Application to 5G Using Software-Defined Radio Platform

Experimental Study of Simplified UTW-OFDM Receiver Technology for Application to 5G Using Software-Defined Radio Platform

Blog Article

The simplified universal time-domain windowed-orthogonal frequency-division multiplexing (Simplified UTW-OFDM) has been proposed to improve spectral efficiency.This study proposed a novel receiving method using an optimal inter-copyright interference (ICI) cancellation technique to improve communication quality during the application of the simplified UTW-OFDM to 5G.The simplified UTW-OFDM suppresses out-of-band emission (OOBE) through the application of very long time-domain windowing to the conventional OFDM with a cyclic prefix (CP-OFDM) symbol.However, in exchange for the OOBE suppression performance, a large ICI is generated due to the symbol distortion caused by the application of the orange zinger tomato time-domain window, resulting in the degradation of the reception quality.

Therefore, in this study, we soderhamn ottoman cover proposed a new method for calculating the log-likelihood ratio that takes into account the effect of the time-domain window.Further, an ICI canceller that included a process for suppressing the noise enhancement effect of the time-domain window was proposed.The effectiveness of the proposed method was evaluated through computer simulations and experiments using software-defined radio.The experimental evaluation showed that the proposed ICI canceller could suppress the OOBE by 23.

5 dB compared to CP-OFDM under the condition that BLER of 0.1 is achieved even when 64QAM is applied.