Presentation 2022-03-11
The Research Challenges in Realizing Software-Defined High Frequency Wireless Communications for Beyond5G
Junting Deng, Ping Du, Akihiro Nakao,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Millimeter-Wave communication has provided several gigabits per second data rate for applications in the context of 5G. And sub-Terahertz communication is a new desirable solution to support the data rate of several terabits per second for techniques such as holography. However, up converting baseband signal to such high frequency is not easy due to challenges including interference in the process of up conversion and nonlinear distortion caused by power amplifier. In this work, we introduce research challenges in realizing high frequency communications and implement an up/down converter based on Intermediate Frequency scheme in GNU Radio to verify the effectiveness of our design as preparation for communications for Beyond 5G. Both text and image messages are transmitted in the simulation with a radio frequency of 5 GHz and the results indicate the feasibility of our up converter. We also propose Digital Pre-Distortion method in GNU Radio to deal with nonlinear distortion.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) UpconverterDigital Pre-DistortionHigh FrequencySoftware Defined Radio
Paper # NS2021-155
Date of Issue 2022-03-03 (NS)

Conference Information
Committee NS / IN
Conference Date 2022/3/10(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English) General
Chair Akihiro Nakao(Univ. of Tokyo) / Kenji Ishida(Hiroshima City Univ.)
Vice Chair Tetsuya Oishi(NTT) / Kunio Hato(Internet Multifeed)
Secretary Tetsuya Oishi(NTT) / Kunio Hato(Chuo Univ.)
Assistant Kotaro Mihara(NTT)

Paper Information
Registration To Technical Committee on Network Systems / Technical Committee on Information Networks
Language ENG-JTITLE
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) The Research Challenges in Realizing Software-Defined High Frequency Wireless Communications for Beyond5G
Sub Title (in English)
Keyword(1) UpconverterDigital Pre-DistortionHigh FrequencySoftware Defined Radio
1st Author's Name Junting Deng
1st Author's Affiliation The University of Tokyo(UTokyo)
2nd Author's Name Ping Du
2nd Author's Affiliation The University of Tokyo(UTokyo)
3rd Author's Name Akihiro Nakao
3rd Author's Affiliation The University of Tokyo(UTokyo)
Date 2022-03-11
Paper # NS2021-155
Volume (vol) vol.121
Number (no) NS-433
Page pp.pp.193-198(NS),
#Pages 6
Date of Issue 2022-03-03 (NS)