Abstract:
In this article, we investigate and analyze energy recycling for a reconfigurable intelligent surface (RIS)-aided wireless-powered communication network. As opposed to th...Show MoreMetadata
Abstract:
In this article, we investigate and analyze energy recycling for a reconfigurable intelligent surface (RIS)-aided wireless-powered communication network. As opposed to the existing works where the energy harvested by Internet of Things (IoT) devices only comes from the power station, IoT devices are also allowed to recycle energy from other IoT devices. In particular, we propose group switching- and user switching-based protocols with time-division multiple access to evaluate the impact of energy recycling on the system performance. Two different optimization problems are, respectively, formulated for maximizing the sum throughput by jointly optimizing the energy beamforming vectors, the transmit power, the transmission time, the receive beamforming vectors, the grouping factors, and the phase-shift matrices, where the constraints of the minimum throughput, the harvested energy, the maximum transmit power, the phase shift, the grouping, and the time allocation are taken into account. In light of the intractability of the above problems, we, respectively, develop two alternating optimization-based iterative algorithms by combining the successive convex approximation method and the penalty-based method to obtain corresponding suboptimal solutions. Simulation results verify that the energy recycling-based mechanism can assist in enhancing the performance of IoT devices in terms of energy harvesting and information transmission. Besides, we also verify that the group switching-based algorithm can obtain more sum throughput of IoT devices, and the user switching-based algorithm can harvest more energy.
Published in: IEEE Internet of Things Journal ( Volume: 10, Issue: 15, 01 August 2023)
Funding Agency:
School of Computer Science and Engineering, Macau University of Science and Technology, Macau, China
Hao Xie (Graduate Student Member, IEEE) received the M.S. degree from Chongqing University of Posts and Telecommunications, Chongqing, China, in 2022. He is currently pursuing the Ph.D. degree with Macau University of Science and Technology, Macau, China.
His current research interests include reconfigurable intelligent surface, wireless-powered communications, and resource allocation.
Hao Xie (Graduate Student Member, IEEE) received the M.S. degree from Chongqing University of Posts and Telecommunications, Chongqing, China, in 2022. He is currently pursuing the Ph.D. degree with Macau University of Science and Technology, Macau, China.
His current research interests include reconfigurable intelligent surface, wireless-powered communications, and resource allocation.View more
School of Computer Science and Engineering, Macau University of Science and Technology, Macau, China
Bowen Gu (Graduate Student Member, IEEE) received the M.S. degree from Chongqing University of Posts and Telecommunications, Chongqing, China, in 2021. He is currently pursuing the Ph.D. degree with Macau University of Science and Technology, Macau, SAR, China.
His research interests include backscatter communication, wireless energy harvesting, and Internet of Things.
Mr. Gu received the IEEE ICC 2021 Student Travel Grant ...Show More
Bowen Gu (Graduate Student Member, IEEE) received the M.S. degree from Chongqing University of Posts and Telecommunications, Chongqing, China, in 2021. He is currently pursuing the Ph.D. degree with Macau University of Science and Technology, Macau, SAR, China.
His research interests include backscatter communication, wireless energy harvesting, and Internet of Things.
Mr. Gu received the IEEE ICC 2021 Student Travel Grant ...View more
School of Computer Science and Engineering, Macau University of Science and Technology, Macau, China
Dong Li (Senior Member, IEEE) received the Ph.D. degree in electronics and communication engineering from Sun Yat-sen University, Guangzhou, China, in 2010.
Since 2010, he has been with the School of Computer Science and Engineering (formally, Faculty of Information Technology), Macau University of Science and Technology, Macau, China, where he is currently an Associate Professor. He held a visiting position with the Insti...Show More
Dong Li (Senior Member, IEEE) received the Ph.D. degree in electronics and communication engineering from Sun Yat-sen University, Guangzhou, China, in 2010.
Since 2010, he has been with the School of Computer Science and Engineering (formally, Faculty of Information Technology), Macau University of Science and Technology, Macau, China, where he is currently an Associate Professor. He held a visiting position with the Insti...View more
School of Computer Science and Engineering, Macau University of Science and Technology, Macau, China
College of Electronic Engineering, National University of Defense Technology, Hefei, China
Zhi Lin (Member, IEEE) received the B.E. and M.E. degrees in information and communication engineering from the PLA University of Science and Technology, Beijing, China, in 2013 and 2016, respectively, and the Ph.D. degree in electronic science and technology from the Army Engineering University of PLA, Nanjing, China, in 2020.
From March 2019 to June 2020, he was a visiting Ph.D. student with the Department of Electrical ...Show More
Zhi Lin (Member, IEEE) received the B.E. and M.E. degrees in information and communication engineering from the PLA University of Science and Technology, Beijing, China, in 2013 and 2016, respectively, and the Ph.D. degree in electronic science and technology from the Army Engineering University of PLA, Nanjing, China, in 2020.
From March 2019 to June 2020, he was a visiting Ph.D. student with the Department of Electrical ...View more
School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing, China
Yongjun Xu (Senior Member, IEEE) received the Ph.D. degree (Hons.) in communication and information system from Jilin University, Changchun, China, in 2015.
He is currently an Associate Professor with Chongqing University of Posts and Telecommunications, Chongqing, China. From December 2018 to December 2019, he was a Visiting Scholar with Utah State University, Logan, UT, USA. He has published more than 100 IEEE papers. Hi...Show More
Yongjun Xu (Senior Member, IEEE) received the Ph.D. degree (Hons.) in communication and information system from Jilin University, Changchun, China, in 2015.
He is currently an Associate Professor with Chongqing University of Posts and Telecommunications, Chongqing, China. From December 2018 to December 2019, he was a Visiting Scholar with Utah State University, Logan, UT, USA. He has published more than 100 IEEE papers. Hi...View more
Contents School of Computer Science and Engineering, Macau University of Science and Technology, Macau, China
Hao Xie (Graduate Student Member, IEEE) received the M.S. degree from Chongqing University of Posts and Telecommunications, Chongqing, China, in 2022. He is currently pursuing the Ph.D. degree with Macau University of Science and Technology, Macau, China.
His current research interests include reconfigurable intelligent surface, wireless-powered communications, and resource allocation.
Hao Xie (Graduate Student Member, IEEE) received the M.S. degree from Chongqing University of Posts and Telecommunications, Chongqing, China, in 2022. He is currently pursuing the Ph.D. degree with Macau University of Science and Technology, Macau, China.
His current research interests include reconfigurable intelligent surface, wireless-powered communications, and resource allocation.View more
School of Computer Science and Engineering, Macau University of Science and Technology, Macau, China
Bowen Gu (Graduate Student Member, IEEE) received the M.S. degree from Chongqing University of Posts and Telecommunications, Chongqing, China, in 2021. He is currently pursuing the Ph.D. degree with Macau University of Science and Technology, Macau, SAR, China.
His research interests include backscatter communication, wireless energy harvesting, and Internet of Things.
Mr. Gu received the IEEE ICC 2021 Student Travel Grant Award.
Bowen Gu (Graduate Student Member, IEEE) received the M.S. degree from Chongqing University of Posts and Telecommunications, Chongqing, China, in 2021. He is currently pursuing the Ph.D. degree with Macau University of Science and Technology, Macau, SAR, China.
His research interests include backscatter communication, wireless energy harvesting, and Internet of Things.
Mr. Gu received the IEEE ICC 2021 Student Travel Grant Award.View more
School of Computer Science and Engineering, Macau University of Science and Technology, Macau, China
Dong Li (Senior Member, IEEE) received the Ph.D. degree in electronics and communication engineering from Sun Yat-sen University, Guangzhou, China, in 2010.
Since 2010, he has been with the School of Computer Science and Engineering (formally, Faculty of Information Technology), Macau University of Science and Technology, Macau, China, where he is currently an Associate Professor. He held a visiting position with the Institute for Infocomm Research, Singapore, in 2012. His current research interests focus on backscatter communications, intelligent reflecting surface-assisted communications, and machine learning for communications.
Dr. Li was a recipient of the Bank of China Excellent Research Award by Macau University of Science and Technology in 2011, 2016, 2019, and 2021, and was listed among World’s Top 2% Scientists recognized by Stanford University in 2020 and 2021. He is currently an Executive Board Member of IEEE Macau Section, and an Editor for IEEE MMTC Review Board.
Dong Li (Senior Member, IEEE) received the Ph.D. degree in electronics and communication engineering from Sun Yat-sen University, Guangzhou, China, in 2010.
Since 2010, he has been with the School of Computer Science and Engineering (formally, Faculty of Information Technology), Macau University of Science and Technology, Macau, China, where he is currently an Associate Professor. He held a visiting position with the Institute for Infocomm Research, Singapore, in 2012. His current research interests focus on backscatter communications, intelligent reflecting surface-assisted communications, and machine learning for communications.
Dr. Li was a recipient of the Bank of China Excellent Research Award by Macau University of Science and Technology in 2011, 2016, 2019, and 2021, and was listed among World’s Top 2% Scientists recognized by Stanford University in 2020 and 2021. He is currently an Executive Board Member of IEEE Macau Section, and an Editor for IEEE MMTC Review Board.View more
School of Computer Science and Engineering, Macau University of Science and Technology, Macau, China
College of Electronic Engineering, National University of Defense Technology, Hefei, China
Zhi Lin (Member, IEEE) received the B.E. and M.E. degrees in information and communication engineering from the PLA University of Science and Technology, Beijing, China, in 2013 and 2016, respectively, and the Ph.D. degree in electronic science and technology from the Army Engineering University of PLA, Nanjing, China, in 2020.
From March 2019 to June 2020, he was a visiting Ph.D. student with the Department of Electrical and Computer Engineering, McGill University, Montreal, QC, Canada. He is currently an Associate Professor with the College of Electronic Engineering, National University of Defense Technology, Hefei, China, and also a Postdoctor Fellow with Macau University of Science and Technology, Macau, China. His research interests include array signal processing, machine learning, physical-layer security, reconfigurable intelligent surface, and satellite–aerial–terrestrial integrated networks.
Dr. Lin was the recipient of the Outstanding Ph.D. Thesis Award of Chinese Institute of Electronics in 2022 and the Macao Young Scholars Fellowship in 2022. He was the Symposium Co-Chair of IEEE WCSP’22 and a TPC Member of IEEE flagship conferences, including IEEE ICC, Globecom, Infocom, and VTC. He was listed in the World’s Top 2% Scientists identified by Stanford University in 2022.
Zhi Lin (Member, IEEE) received the B.E. and M.E. degrees in information and communication engineering from the PLA University of Science and Technology, Beijing, China, in 2013 and 2016, respectively, and the Ph.D. degree in electronic science and technology from the Army Engineering University of PLA, Nanjing, China, in 2020.
From March 2019 to June 2020, he was a visiting Ph.D. student with the Department of Electrical and Computer Engineering, McGill University, Montreal, QC, Canada. He is currently an Associate Professor with the College of Electronic Engineering, National University of Defense Technology, Hefei, China, and also a Postdoctor Fellow with Macau University of Science and Technology, Macau, China. His research interests include array signal processing, machine learning, physical-layer security, reconfigurable intelligent surface, and satellite–aerial–terrestrial integrated networks.
Dr. Lin was the recipient of the Outstanding Ph.D. Thesis Award of Chinese Institute of Electronics in 2022 and the Macao Young Scholars Fellowship in 2022. He was the Symposium Co-Chair of IEEE WCSP’22 and a TPC Member of IEEE flagship conferences, including IEEE ICC, Globecom, Infocom, and VTC. He was listed in the World’s Top 2% Scientists identified by Stanford University in 2022.View more
School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing, China
Yongjun Xu (Senior Member, IEEE) received the Ph.D. degree (Hons.) in communication and information system from Jilin University, Changchun, China, in 2015.
He is currently an Associate Professor with Chongqing University of Posts and Telecommunications, Chongqing, China. From December 2018 to December 2019, he was a Visiting Scholar with Utah State University, Logan, UT, USA. He has published more than 100 IEEE papers. His current research interests include reconfigurable intelligent surface, resource allocation, heterogeneous networks, energy harvesting, and backscatter communications.
Dr. Xu was the recipient of the Outstanding Doctoral Thesis of Jilin Province in 2016, the Young Scholar of Chongqing Bayu Scholar, and the Wenfeng Young Scholar of Chongqing University of Posts and Telecommunications. He has served as an Editor for EURASIP Journal on Wireless Communications and Networking, Physical Communication, and Journal of Electronics & Information Technology. In addition, he also has served as the Chair and a TPC Member of some wireless communications flagship conference, such as ICC, WCNC, Globecom, and VTC.
Yongjun Xu (Senior Member, IEEE) received the Ph.D. degree (Hons.) in communication and information system from Jilin University, Changchun, China, in 2015.
He is currently an Associate Professor with Chongqing University of Posts and Telecommunications, Chongqing, China. From December 2018 to December 2019, he was a Visiting Scholar with Utah State University, Logan, UT, USA. He has published more than 100 IEEE papers. His current research interests include reconfigurable intelligent surface, resource allocation, heterogeneous networks, energy harvesting, and backscatter communications.
Dr. Xu was the recipient of the Outstanding Doctoral Thesis of Jilin Province in 2016, the Young Scholar of Chongqing Bayu Scholar, and the Wenfeng Young Scholar of Chongqing University of Posts and Telecommunications. He has served as an Editor for EURASIP Journal on Wireless Communications and Networking, Physical Communication, and Journal of Electronics & Information Technology. In addition, he also has served as the Chair and a TPC Member of some wireless communications flagship conference, such as ICC, WCNC, Globecom, and VTC.View more
