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Robust beamforming design for energy harvesting efficiency maximization in RIS-aided SWIPT system
《Digital Communications and Networks》2024年第6期1804-1812,共9页Xingquan Li Hongxia Zheng Chunlong He Xiaowen Tian Xin Lin 
supported by the Shenzhen Basic Research Program under Grant JCYJ20220531103008018,20231120142345001,20200812112423002;Shenzhen Stability Support Project under Grant 20231127144045001;the Double Height Construction under Grant SZIIT2022KJ023。
This paper investigates Energy Harvesting Efficiency(EHE)maximization problems for Reconfigurable Intelligent Surface(RIS)aided Simultaneous Wireless Information and Power Transfer(SWIPT).This system focuses on the im...
关键词：Energy Harvesting Efficiency(EHE) Reconfigurable Intelligent Surface(RIS) Simultaneous Wireless Information and Power Transfer(SWIPT) Imperfect Channel State Information(CSI) 
Secure data rate maximization for full-duplex UAV-enabled base station
《Digital Communications and Networks》2024年第5期1387-1393,共7页Chunlong He Xinjie Li Yin Huang Jianzhen Lin Gongbin Qian Xingquan Li 
supported in part by the Shenzhen Basic Research Program under Grant 20200811192821001 and JCYJ20190808122409660,JCYJ20220531103008018;in part by the Guangdong Basic Research Program under Grant 2019A1515110358,2021A1515012097,2020ZDZX1037,2020ZDZX1021;in part by the open research fund of National Mobile Communications Research Laboratory,Southeast University(No.2021D16)。
Unmanned Aerial Vehicle(UAV)is an air base station featuring flexible deployment and mobility.It can significantly improve the communication quality of the system due to its line-of-sight channel connection with groun...
关键词：UAV relay Physical layer security Full-duplex UAV Power optimization Trajectory optimization 
Multiplex network infomax:Multiplex network embedding via information fusion
《Digital Communications and Networks》2023年第5期1157-1168,共12页Qiang Wang Hao Jiang Ying Jiang Shuwen Yi Qi Nie Geng Zhang 
This work was supported by the National Natural Science Foundation of China(NSFC)under Grant U19B2004;in part by National Key R&D Program of China under Grant 2022YFB2901202;in part by the Open Funding Projects of the State Key Laboratory of Communication Content Cognition(No.20K05 and No.A02107);in part by the Special Fund for Science and Technology of Guangdong Province under Grant 2019SDR002.
For networking of big data applications,an essential issue is how to represent networks in vector space for further mining and analysis tasks,e.g.,node classification,clustering,link prediction,and visualization.Most ...
关键词：Network embedding Multiplex network Mutual information maximization 
Resource allocation for sum-rate maximization in NOMA-based generalized spatial modulation被引量：5
《Digital Communications and Networks》2022年第6期1077-1084,共8页Guoquan Li Zijie Hong Yu Pang Yongjun Xu Zhengwen Huang 
supported by the National Key Research and Development Program of China(Grant No.2019YFC1511300);the National Natural Science Foundation of China(Grant No.U21A20447 and 61971079);the Basic Research and Frontier Exploration Project of Chongqing (Grant No.cstc2019jcyj-msxmX0666);the Innovative Group Project of the National Natural Science Foundation of Chongqing (Grant No.cstc2020jcyj-cxttX0002);the Regional Creative Cooperation Program of Sichuan (2020YFQ0025).
The Multiple-Input Multiple-Output(MIMO)Non-Orthogonal Multiple Access(NOMA)based on Spatial Modulation(SM-MIMO-NOMA)system has been proposed to achieve better spectral efficiency with reduced radio frequency chains c...
关键词：Resource allocati on NOMA Spatial modulati on Power allocation User grouping 
Sum-rate maximization for UAV-enabled two-way relay systems
《Digital Communications and Networks》2022年第6期1105-1114,共10页Keju Lu Fahui Wu Lin Xiao Yipeng Liang Dingcheng Yang 
supported in part by the National Natural Science Foundation of China (61703197, 62061027).
In this paper,an Unmanned Aerial Vehicle(UAV)-enabled two-way relay system with Physical-layer Network Coding(PNC)protocol is considered.A rotary-wing UAV is applied as a mobile relay to assist two ground terminals fo...
关键词：UAV communication Tw0-way relay Time slot pairing Trajectory design 
Robust resource allocation for NOMA-assisted heterogeneous networks
《Digital Communications and Networks》2022年第2期208-214,共7页Hao Xie Yongjun Xu 
This work was supported by the National Natural Science Foundation of China(No.61601071,62071078);the National Key Research and Development Program of China(No.2019YFC1511300);the Natural Science Foundation of Chongqing(No.cstc2019jcyj-xfkxX0002);the Chongqing Entrepreneurship and Innovation Program for the Returned Overseas Chinese Scholars(No.cx2020095);the Graduate Scientific Research Innovation Project of Chongqing(No.CYS20251,CYS20253).
As a promising technology to improve spectrum efficiency and transmission coverage,Heterogeneous Network(HetNet)has attracted the attention of many scholars in recent years.Additionally,with the introduction of the No...
关键词：Heterogeneous network Imperfect channel state information Non-orthogonal multiple access Robust resource allocation Energy efficiency maximization 
Identifying influential nodes in social networks via community structure and influence distribution difference被引量：3
《Digital Communications and Networks》2021年第1期131-139,共9页Zufan Zhang Xieliang Li Chenquan Gan 
The authors are grateful to the anonymous reviewers and the editor for their valuable comments and suggestions.This work is supported by Natural Science Foundation of China(Grant Nos.61702066 and 11747125);Major Project of Science and Technology Research Program of Chongqing Education Commission of China(Grant No.KJZD-M201900601);Chongqing Research Program of Basic Research and Frontier Technology(Grant Nos.cstc2017jcyjAX0256 and cstc2018jcy-jAX0154);Project Supported by Chongqing Municipal Key Laboratory of Institutions of Higher Education(Grant No.cqupt-mct-201901);Tech-nology Foundation of Guizhou Province(QianKeHeJiChu[2020]1Y269);New academic seedling cultivation and exploration innovation project(QianKeHe Platform Talents[2017]5789-21).
This paper aims to effectively solve the problem of the influence maximization in social networks.For this purpose,an influence maximization method that can identify influential nodes via the community structure and t...
关键词：Social network Community detection Influence maximization Network embedding Influence distribution difference 
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