Presentation 2021-06-21
Highly-efficient Reception Methods for 5G System Using Universal Time-domain Windowed OFDM System
Yuu Ichikawa, Keiichi Mizutani, Hiroshi Harada,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) To improve the spectral efficiency of the 5th generation mobile communication system (5G) and beyond, the universal time-domain windowed orthogonal frequency division multiplexing (UTW-OFDM) has been proposed. Particularly, the simplified UTW-OFDM is highly compatible with the conventional CP-OFDM. It can strongly suppress out-of-band emission (OOBE) with a simple configuration of multiplying a time window with a long transition length. However, in the UTW-OFDM, multiplication of the time window causes inter-carrier interference (ICI), which degrades the communication quality, especially for higher-order modulation schemes such as 64QAM. In this report, firstly we investigate the applicability of the simplified UTW-OFDM to the 5G. Next, a method is proposed to cancel the ICI caused by the UTW in 5G. In the proposed method, an optimal ICI cancellation weight is designed by taking the noise enhancement suppression into account. The proposed method improves the communication quality while achieving a stronger OOBE suppression.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) 5G / OFDM / Universal time-domain window / Out-of-band emission / ICI cancellation
Paper # SRW2021-5
Date of Issue 2021-06-14 (SRW)

Conference Information
Committee SRW
Conference Date 2021/6/21(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English) WLAN, WPAN, Ad-hoc, mmWave, etc.
Chair Hanako Noda(Anritsu)
Vice Chair Keiichi Mizutani(Kyoto Univ.) / Kentaro Saito(Tokyo Denki Univ.) / Hirokazu Sawada(NICT)
Secretary Keiichi Mizutani(NTT) / Kentaro Saito(NIigata Univ.) / Hirokazu Sawada
Assistant Akihito Noda(Nanzan Univ.)

Paper Information
Registration To Technical Committee on Short Range Wireless Communications
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Highly-efficient Reception Methods for 5G System Using Universal Time-domain Windowed OFDM System
Sub Title (in English)
Keyword(1) 5G
Keyword(2) OFDM
Keyword(3) Universal time-domain window
Keyword(4) Out-of-band emission
Keyword(5) ICI cancellation
1st Author's Name Yuu Ichikawa
1st Author's Affiliation Kyoto University(Kyoto Univ.)
2nd Author's Name Keiichi Mizutani
2nd Author's Affiliation Kyoto University(Kyoto Univ.)
3rd Author's Name Hiroshi Harada
3rd Author's Affiliation Kyoto University(Kyoto Univ.)
Date 2021-06-21
Paper # SRW2021-5
Volume (vol) vol.121
Number (no) SRW-70
Page pp.pp.25-30(SRW),
#Pages 6
Date of Issue 2021-06-14 (SRW)