We would like to express our appreciation to the following reviewers for their valuable assistance, expert knowledge in 2020. With their help, we were able to maintain the high quality of papers published in ETRI Journal.

A Raja Basha, Sri Venkateswara College of Eng.

Abhay Chaturvedi, GLA Univ.

Abhinav Jain, Thapar Inst. of Eng. and Technol.

Adriano Fiorese, Santa Catarina State Univ.

Afsah Anwar, Univ. of Central Florida

Ahmad Alsheikh, German Jordanian Univ

Ahmad Jalal, POSTECH

Ahmed Abusnaina, Univ. of Central Florida

Ahmed Mounir

Ajay Bhardwaj, Indian Inst Technol

Alessandro Pozzebon, Univ. of Siena

Alexandro Baldassin, Sao Paulo State Univ.

Ali Asghar Rahmani Hosseinabadi, Islamic Azad Univ.

Ali Muqaibel, King Fahd Univ. of Petroleum and Minerals

Alìcia Casals, Universitat Politècnica de Catalunya

Alina Ristea, Universität Salzburg

Alpana Deshmukh, SGSITS

Amarjit Kumar, Indian Inst. of Technol., Roorkee

Anfeng Liu, Cent S Univ.

Anirban Bhowmick, VIT Univ.

Aniruddha Chandra, Natl Inst of Technol. Durgapur

Anjaneyulu Lokam, Natl Inst of Technol. Warangal

Anuj Agrawal, Indian Institute of Technol. Indore

Arjun Anand, Univ. of Texas Austin

Arkadiusz Jozefczak, Adam Mickiewicz Univ.

Arun Kumar Sangaiah, Vellore Inst. of Technol.

Arwin Sumari, Polytechnic of Malang

Asheesh K Singh, Motilal Nehru Natl Inst Technol

Ashok Kumar Das

Ashwini Malviya

Asim Sinan Yuksel, Suleyman Demirel Univ.

Assaf Botzer, Ariel Univ.

Assunta De Vita, Rai Radiotelevisione Italiana

Azam Soleimanian, Ecole Normale Superieure

Baek‐Young Choi, Univ. of Missouri‐Kansas City

Bahnasse Ayoub, ENSAM Casablanca

Bakhe Nleya, Durban Univ. of Technol.

Baolin Sun, Hubei Univ. Econ.

Baoping Ren, East China Jiaotong Univ.

Basudeb Bera, IIIT Hyderabad

Benqing Guo, Chengdu Univ.

Bharat Jyoti Ranjan Sahu, Kyungpook National Univ.

Biswa Ranjan Senapati

Bo‐Mi Lim, ETRI

Bong‐Su Kim, ETRI

Cailian Chen, Shanghai Jiao Tong Univ.

Carlos R. Hall Barbosa, Pontifical Catholic Univ. Chang Heon Lim, Pukyong National Univ.

Chang Ki Lee, Kangwon National Univ.

Changming Sun, Commonwealth Scientific

Chaoyun Li, Katholieke Univ Leuven

Chen Liu, Nanjing Univ Posts

Chenguang Shi, Nanjing Univ Aeronaut.

Cheoneum Park, Hyundai Motor Company

Chetan Barde, Natl Inst of Technol. Jamshedpur

Chin‐Feng Lin, Natl Taiwan Ocean Univ.

Christian Rechberger, Graz Univ. of Technol.

Christina Boura, Versailles Saint‐Quentin‐en‐Yvelines Univ.

Christo Kurisummoottil Thomas, EURECOM

Christoph Janott, Technische Universität München

Christos Bouras, Univ Patras

Chrysostomos Nicopoulos, Univ. of Cyprus

Chunguo Li, Southeast Univ.

Chunhua Zhu, Henan Univ. of Technol.

CJ Duan, Dulun Consulting

Claudio Sacchi, Univ. of Trento

Cristina Meinhardt, UFSC

DaeHee Jang, Yonsei Univ.

Dan Guo, Hefei Univ. of Technol.

Dan Kuchta, IBM

Degan Zhang, Tianjin Univ Technol.

Dehuan Wan, Guangdong Univ. of Finance

Deniz Kumlu, National Defense Univ.

Devarani Devi Ningombam, ETRI

Di Zhang, Zhengzhou Univ.

Dingwen Tao, Washington State Univ.

Dinh‐Thuan Do, Ton Duc Thang Univ.

Domenico Ciuonzo, Università degli Studi di Napoli Federico II

Dong Kyoo Kim, ETRI

Dong Seog Han, Kyungpook National Univ.

Dongdai Lin, Chinese Academy of Sciences

Dongfang Ma, Zhejiang Univ.

Dong‐gyu Sim, Kwangwoon Univ.

Dongjun Jung, Yonsei Univ.

Dongming Zhou, Yunnan Univ.

Dong‐Wook Seo, Korea Maritime and Ocean Univ.

Ehsan Mousavi Khaneghah, Shahed Univ.

Ersan Kabalci, Nevsehir Univ.

Esam Alkaldy, Univ. of Kufa

Eunhyeok Park, Seoul National Univ.

Evangelia A. Karagianni, Hellenic Naval Academy

Ezmin Abdullah, Univ Teknol Mara

Farzad Zargari, Res Inst ICT

Fatih Kamisli, Middle East Tech Univ.

FC. Lau, Colorado State Univ.

Fei Wang, Nanjing Univ Aeronaut

Fenggang Sun, Shandong Agricultural Univ.

Flavio Palmieri, Universitat Politècnica de Catalunya

Florian Bourse, Ecole Normale Superieure

Forough Shirin Abkenar, The Univ. of Sydney

Francesc Auli‐Llinas, Universitat Autonoma de Barcelona

Fuchang Chen, South China Univ. of Technol.

Fuhui Zhou, Nanchang Univ.

Gai‐Ge Wang, Ocean Univ. of China

Gauthier Lafruit, Université Libre de Bruxelles

George Botzoris, Democritus Univ. of Thrace

Geraldo Pereira

Gokay Bayrak, Bursa Technical Univ.

Gokul Chandrasekaran

Gomathi C

Gong‐Ru Lin, National Taiwan Univ.

Guanglin Zhang, Donghua Univ.

Guanhua Yan, Binghamton Univ.

Guilherme Paim, UFRGS

Guisik Kim

Guoxi Liang

H.R. Baghaee, Amirkabir Univ. of Technol.

Hadi Jahanirad, Univ. of Kurdistan

Hadi Larijani, Glasgow Caledonian Univ.

Hai Wang, Singapore Management Univ.

Haibo Yi, Shenzhen Polytech

Haina Zheng, Beijing Jiaotong Univ.

Haixia Peng

Haiyang Ding, Xidian Univ.

Hakan Dogan, Istanbul Medipol Univ.

Han Wang, Yichun Univ.

Hao Gao, Eindhoven Univ. of Technol.

Hao Luan, Xidian University

Hao Wu

Haroon Malik, Marshall Univ.

Hesham Moussa, Univ. of Waterloo

Hillel Avni, Huawei European Research Institute

Himanshu Mittal, Jaypee Inst Informat Technol

Ho‐Lung Hung, Natl Kaohsiung Marine Univ.

Homayoon Oraizi, Iran Univ. of Sci. Technol.

Hongde Qin, Harbin Engn Univ.

Hongjiang Lei, Chongqing Univ. of Posts Telecommun.

Hongwei Guo, Honghe Univ.

Hoyoung Yoo, Chungnam National Univ.

Hsu‐Feng Hsiao, National Chiao Tung Univ.

Hua Yu, South China Univ. of Technol.

Huang‐Chia Shih, Yuan Ze Univ.

Huangshui Hu, Changchun Univ Technol

Hung‐Yu Wei, Natl Taiwan Univ.

Hwajeong Seo

Hyeongseok Kim, Korea Maritime and Ocean Univ.

Hyoungho Ko, Chungnam National Univ.

Hyun Kwon, KAIST

HyunChul Joh, Kyungil Univ.

Hyundo Choi, Dongguk Univ.

Hyungbae Park, Univ. of Central Missouri

I Gede Puja Astawa, Politeknik Elektronika Negeri Surabaya

I.K. Kim, ETRI

Ibai Laña, Tecnalia Parque Científico y Tecnológico de Bizkaia

Ickhyun Song, Oklahoma State Univ. Stillwater

Ic‐Pyo Hong, Kongju Natl Univ.

Il Hwan Cho, Myongji Univ.

Il Min Lee

Imran Ashraf

Ingyu Lee, Troy Univ.

J. Ajayan, SNS College of Technol.

J.W. Jeon, Konkuk Univ.

Jack Jia‐Sheng Huang, Source Photonics

Jae‐Hyun Kim, Ajou Univ.

Ja‐Hwung Su, Cheng Shiu Univ.

James Robert Green, Carleton Univ.

Jaymin Bhalani, Babaria Institute of Technol.

Jeho Lee, Korea Polytechnic Univ.

Jeongchang Kim, Korea Maritime and Ocean Univ.

Jeonghyup Lee, DGIST

Jeongjin Roh, Hanyang Univ.

Jeongkyu Hong

Ji Bian, Shandong Univ.

Ji Hyung Kim, ETRI

Jiakuo Zuo, Nanjing Univ Posts

Jian Guo, Nanyang Technological Univ.

Jianhua Guo, Southeast Univ.

Jianjiang Zhou, Nanjing Univ Aeronaut

Jianqi Chen, Univ. of Texas at Dallas

Jie Huang, Southeast Univ.

Jie Lu, Univ. of Technol. Sydney

Jihee Ryu, ETRI

Jihoon Kim, Seoul National Univ.

Jim Seo, Gangneung‐Wonju National Univ.

Jin Shang, Beijing Univ Posts

Jin Wang, Changsha Univ Sci

Jin‐Fa Liu, Chaoyang Univ. of Technol.

Jing Tian, Nanjing Univ.

Jing Xia, Jiangsu Univ.

Jingqiang Chen, Nanjing Univ Posts

Jingxiao Ma, Brown Univ.

Jinho Hwang, IBM TJ Watson Res Ctr

Jinsong Su, Xiamen Univ.

Jinsung Kim, SunMoon Univ.

Jintae Kim, Konkuk Univ.

Jinwang Feng, Northwestern Polytechnical Univ.

Joao Barreto, Univ Tecn Lisboa

Job Chunkath, Government Engineering College Thrissur

Joe Teng, Troy Univ.

John P. R. David, Univ. of Sheffield

Jong Won Yu

Jongpal Kim, Korea Tech

Jorge Calvo‐Zaragoza, Univ Alicante

Jorge Gotay, Universidad Nacional de Tucuman

Jose Manuel Riera, Universidad Politécnica de Madrid

Jose Maria Matias, Natl Autonomous Univ. of Mexico

Jounsup Park, The Univ. of Texas at Tyler

Jue Wang, Nantong Univ.

Jun Li, Guangzhou Univ.

Jun Wu, Hangzhou Dianzi Univ.

Junfeng Li, Nanjing Univ Posts

Jung Han Choi, Fraunhofer HHI

Jung‐Bin Kim, ETRI

Jung‐Nam Lee, ETRI

Jungsuek Oh, Seoul National Univ.

Junjuan Xia, Guangzhou Univ.

Junsung Kim, Yonsei Univ.

Kajal Kansal, IIIT‐Delhi

Kandarpa Kumar Sarma, Gauhati Univ.

Kaushik Roy, West Bengal State Univ.

Ke Guan, Beijing Jiaotong Univ.

Kee Moon, San Diego State Univ.

Khadige Abboud, Amazon.com Inc

Khadija Shakeel, Univ Lahore

Ki Chon, Univ. of Connecticut

Kuduck Kwon, Kangwon Natl Univ.

Kumar Suman, Troy Univ.

Kusma Kumari Cheepurupalli, GVP College of Eng.

Kyounggon Kim, Korea Univ.

Lan Liu, DUT

Laura Burattini, Università Politecnica delle Marche

Li Yan, Yunnan Normal Univ.

Liang Zhang

Lin X. Cai, Univ Victoria

Long Zhao, Beijing Univ Posts

Lorenzo Ferretti, Universita della Svizzera Italiana

Loreto Pescosolido, CNR

Luciano Bononi, Università di Bologna

Luis Gonzaga Baca Ruiz, Univ. of Granada

M. Abukari Yakubu

M. S. Arun Sankar, Natl Inst Technol

Madeha Azhar

Mahrous Ahmed

Mahyar Shirvanimoghaddam, The Univ. of Sydney

Mainak Adhikari, Univ. of Tartu

Mamata Rath

Manish Kumar, M S Ramaiah Inst. of Technol.

Manuel Arturo Rendãn Maldonado, UFJF

Manuel Noguera, Universidad de Granada

Marco Lanuzza, Univ. of Calabria

María Del Carmen Pegalajar Jiménez, Univ. of Granada

Marko Leinonen, Oulun Yliopisto Teknillinen Tiedekunta

Martin Reisslein, Arizona State Univ.

Masahiro Nada, Nippon Telegraph

Masaki Kawamura, Yamaguchi Univ.

Masataka Ohira, Saitama Univ.

Mattia Merluzzi, Sapienza Università di Roma

Md Zahangir Alam, The Univ. of Sydney

Mehmood Arif, KFUEIT

Meicheng Liu, Chinese Academy of Sciences

Menaka Arthur, St.Joseph's Institute of Technol.

Mengchu Zhou, New Jersey Institute of Technol.

Meng‐Jie Hsiao, Texas A&M Univ. College Station

Miao Wang, Miami Univ

Michael Walter, German Aerospace Center

Mikolaj P. Karpinski, Univ. of Bielsko‐Biala

Min Jang

Minh‐Son Dao, Natl Inst of Info. Commun. Technol.

Minjae Lee, GIST

Minsung Yoon, ETRI

Mohamad A. Ahmed, Ninevah Univ.

Mohamed Benouis, Univ. of M'sila

Mohamed Lassaad Ammari, Laval Univ.

Mohamed Sana, Université Grenoble Alpes

Mohammad Mosleh

Mohammad Nassiri, Bu Ali Sina Univ.

Mohammad Nishat Akhtar, Universiti Sains Malaysia

Mohammad Reza Abedi, Tarbiat Modares Univ.

Mohammed Abuhamad, Univ. of Central Florida

Mohammed H. Alsharif, Sejong Univ.

Muhammad Akram, Sungkyunkwan Univ.

Muhammad Arshad Islam, FAST‐NU

Muhammad Haroon Yousaf, Univ. of Eng. Technol. Taxila

Muhammad Khalid, Inst Management Sci

Muhammad Rafiq, Yeungnam Univ.

Mujtaba Husnain, Islamia Univ. of Bahawalpur

Munish Kumar, MRSPTU

Murtadha Aldeer, Rutgers Univ.

Musa Balta, Sakarya Univ.

Myat Myat Min, Univ Comp Studies

Myounggon Kang, Korea Natl Univ. of Transportation

Nadir Shah, COMSATS Univ. Islamabad (CUI)

Nagabhushan Eswara, IIT Hyderabad

Naglaa Fathi Mohammed Soliman, Zagazig Univ

Nancharaiah Vejendla

Nary Subramanian, Univ. of Texas at Tyler

Nazar Thamer Ali, Khalifa Univ. of Sci. and Technol.

Necmi Taspinar, Erciyes Universitesi

Nicola di Pietro, CEA‐Leti

Nicolás Jara, Universidad Tecnica Federico Santa Maria

Niranjan Panigrahi, Parala Maharaja Engn Coll

Octavia A. Dobre, Memorial Univ. Newfoundland

Orhan Ermis, Bogazici Univ.

Osman Ibrahim, Minia Univ.

Padmavathi T, JNTU Kakinada

Paul Rad, Univ. of Texas at San Antonio

Paulo Montezuma, FCT‐UNL

Pedro Bertemes Filho, UDESC

Peter Rhodes, Univ. of Leeds

Prabal Gupta, Dev Bhoomi Grp Inst

Priyanka Singh, DA‐IICT

Qiang Li, Jinan Univ.

Qiben Yan, Michigan State Univ.

Qingbo Wu, Univ. of Electronic Science

Qingyu Yin, Harbin Institute of Technol.

Rafaella Elia, Univ. of Cyprus

Rahul Singh, Qualcomm Technologies Inc

Rajathi N, Kumaraguru College of Technol.

Ram Bilas Pachori, Indian Inst Technol

Ramya Vijay, SASTRA Deemed Univ.

Ranran Li, Yanshan Univ.

Rashid Ali Fayadh

Ravi Srivastava, Micron Technol. Inc

Rehmat Ullah

Rekha P M, JSS Academy of Technical Education Bangalore

Renshu Gu, Univ. of Washington

Rhongho Jang, Univ. of Central Florida

Robert Fisher

Robert Sherratt, The Univ. of Reading

Rolla Jamil, Henan Inst. of Sci. and Technol.

Ruby Beniwal, Jaypee Inst. of Info. Technol.

RUEY‐YI WEI, Natl Central Univ.

Ruggero Donida, Università degli Studi di Milano

Ruggero G. Pensa, Univ. of Turin

Rui HOU, South‐Central Univ. for Nationalities

Rui Zhao, Univ Sheffield

Runmei Li, Beijing Jiaotong Univ.

Ruonan Zhang, Northwestern Polytech Univ.

Ryota Kawashima, Nagoya Institute of Technol.

Saba Asaad, Friedrich Alexander Univ Erlangen Nurnberg

Sahib Khan, Politecnico di Torino

Salah Abdul Ghani Alabady, Univ. of Mosul

Salah Alabady

Saman Almufti, Nawroz Univ.

Sandeep Garg

Sang Yoon Park, Myongji Univ.

Sangheon Pack, Korea Univ.

Sanghoon Kang, KAIST

Sang‐Rok Moon, ETRI

Sang‐Soo Park, Hanyang Univ.

Sangwan Kim, Ajou Univ.

Saqib Hakak, Univ. of North British Columbia

Saroja Devi H, Nitte Meenakshi Inst Technol

Sarumathi Murali, The Univ. of Sydney

Satoshi Kitazaki, AIST

Satyabrata Jit, Banaras Hindu Univ.

Seho Myung, Samsung Electronics

Sejun Song, Univ. of Missouri‐Kansas City

Selvapandian A, PSNA College of Eng. and Technol.

Seokhie Hong, Korea Univ.

Seokki Ahn, ETRI

Seong Oun Hwang, Hongik Univ.

Serkan Gonen, Gazi Universitesi

Seung Woo Son, UMass Lowell

Seung‐Tak Ryu, KAIST

Shaddrack Nusenu, Koforidua Technical Univ.

Shadi Ghiasi, Univ. of Pisa

Shahriar Moghaddam, Shahid Rajaee Teacher Training Univ.

Shangce Gao, Univ. of Toyama

Shangguang Wang, Beijing Univ Posts

Shaveta Thakral, MRIIRS FET

Sheng Du, China Univ. of Geosciences

Sheng‐Ju Ku, Natl Tsing Hua Univ.

Shiqiang Wang, IBM

Shivakumara Palaiahnakote, Universiti Malaya

Shiyong Zhang, China Acad Engn Phys

Shoaib Mughal, Nanjing Univ Aeronaut

Shobhit K. Patel, Univ. of Nebraska Lincoln

Shouraseni Roy, Univ. of Miami

Shri Ramtej Kondamuri, Natl Inst Technol. Warangal

Shuenn‐yuh Lee, National Cheng Kung Univ.

Simone Morosi, Univ. of Florence

Soo Chang Kim, ETRI

Soo Young Shin, Kumoh Natl Inst of Technol.

Soojong Lim, ETRI

Soren Forchhammer, Tech Univ Denmark

Sravan Kaliki, JNTUA College of Engineering

Sreevidya B, Amrita Vishwa Vidyapeetham

Stefan Holst, Kyushu Inst Technol.

Stephen Ekwe, Univ. of Cape Town

Subha Ghosh

Subhajit Das, National Institute of Technol. Silchar

Subhankar Bhattacharjee, Techno India Coll Technol

Sujata Agrawal, Shrimati Kashibai Navale Coll Engn

Suleyman Savas, Högskolan i Halmstad

Sung Ik Park, ETRI

Sung Young Jung, ETRI

Sung‐jin Kim, KAIST

Sungjun Ahn, ETRI

Sungpill Choi, Samsung Research and Development

Syeda Fizzah Jilani, Univ. of Maine System

Taejung Park, Duksung Womens Univ.

Taewook Kang, ETRI

Takuya Shitomi, Japan Broadcasting Corp

Tao Li, Nankai Univ.

Tarek Hasan Al Mahmud, Univ. of Science

Tong Xu, Southeast Univ.

Toru Iwane, Nikon Corp.

Toshinori Sato, Fukuoka Univ.

Vasaka Visoottiviseth, Mahidol Univ.

Victoria Ruiz, Univ Rey Juan Carlos

Vinayakumar R, Amrita Vishwa Vidyapeetham Univ.

Vipin Gupta, Indian Institute of Technol. Indore

Wai Kong Lee

Walid Saad, Virginia Tech

Wei Wang, Univ. of Electron. Sci. and Technol. of China

Weikai Xu, Xiamen Univ.

Wei‐Wen Hu, Southern Taiwan Univ. of Sci. and Technol.

Weizhe Zhang, Harbin Institute of Technol.

Wenjuan Zhang, Chinese Acad Sci

Wenjun Fan, Univ. of Kent at Canterbury

Wonjun Song, ETRI

X. F. Jiang, Colorado State Univ.

Xiang Jiang, FiberHome Telecommun. Technologies

Xianglong Luo, Chang'an Univ.

Xiangyu Zhao, Michigan State Univ.

Xianxiang Yu

Xiaofang Zhou, The Univ. of Queensland

Xiaofei Zhang, Nanjing Univ. of Aeronautics and Astronautics

Xiaoming Wang, Shaanxi Normal Univ.

Xiaoyun Wang, UC Davis

Xin Li, Univ. of Cambridge

Xin Liu, Dalian Univ Technol

Xinfeng Zhang, Univ. of Chinese Academy of Sci.

Xing Cheng

Xuan Huyen Do, Univ. of Sciences, Hue Univ.

Xugang Lu, Natl Inst Informat

Yang Lu, Beijing Jiaotong Univ.

Yang Zhao

Yangseo Choi, ETRI

Yanjun Zhao, Troy Univ.

Yasir Jawhar, Universiti Tun Hussein Onn Malaysia

Ye Liu, Coventry University

Ye Zhang, Minist Land

Yeongjae Choi, KAIST

Yi Yi Aung, Univ Comp Studies

Yilan Li, Syracuse Univ.

Yingsong Li, Harbin Engn Univ.

Yin‐Tsung Hwang, National Chung Hsing Univ.

Yong Heui Cho, Mokwon Univ.

Yong Jia, Chengdu Univ. of Technol.

Yong Zhou, ShanghaiTech Univ.

Yoo Song, ETRI

Yoonha Hwang, Yonsei Univ.

Yoonmyung Lee, Sungkyunkwan Univ.

Yoshinori Kuno, Saitama Univ.

You Han, Bloomberg LP

Youguang Guo, Univ. of Technol. Sydney

Young Rae Kim, Sungkyunkwan Univ.

Young‐Bae Jung, Hanbat National Univ.

Youngeun Kwon, KAIST

Youngjae Kim, Sogang Univ.

Youngjoo Lee, POSTECH

Young‐Kyun Cho, ETRI

Youngmin Kim, Hongik Univ.

Yousef‐Awwad Daraghmi, Palestine Technical Univ.

Yuanzhi Yao, Univ. of Sci. and Technol. of China

Yue Xiao

Yun‐Kyung Lee, ETRI

Yusuf Sambo, Univ. of Glasgow

Zahra Pooranian, Univ. of Padua

Zeeshan Jhandir, The Islamia Univ. of Bahawalpur

ZH Tu, South China Univ. of Technol.

Zheng LI, Hebei Univ. of Science and Technol.

Zhenming Peng, Univ. of Electron. Sci. Technol. of China

Zhenyong Wang, Harbin Institute of Technol.

Zhenzhou Wang, Shandong Univ Technol.

Zhihong Tian, Guangzhou Univ.

Zhiqian Jiang, Shanghai Jiao Tong Univ.

Zhuang Yaoming

Zongming Duan, USTC