Resource Type

Journal Article 1310

Conference Videos 113

Conference Information 55

Conference Topics 4

Year

2024 4

2023 130

2022 184

2021 157

2020 128

2019 106

2018 95

2017 70

2016 46

2015 45

2014 19

2013 26

2012 31

2011 28

2010 26

2009 20

2008 35

2007 42

2006 53

2005 49

open ︾

Keywords

Artificial intelligence 35

artificial intelligence 18

Machine learning 17

Deep learning 12

Multi-agent system 8

neural network 8

sustainable development 7

system engineering 7

system integration 7

Intelligent manufacturing 6

Multi-agent systems 6

open complex giant system 6

system 6

Big data 4

Qian Xuesen 4

Smart manufacturing 4

architecture 4

hydrogen energy 4

system science 4

open ︾

Search scope:

排序： Display mode:

Secure analysis on artificial-noise-aided simultaneous wireless information and power transfer systems

Wei-min Hou, Qing-shan Tang,cstqs001@126.com

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 11,   Pages 1535-1670 doi: 10.1631/FITEE.2000083

Abstract: In this paper, we investigate the secrecy outage performance in (SWIPT) systems taking assistance into account. Multiple antennas in the source and a single antenna in both the legitimate receiver and the eavesdropper are assumed. Specifically, the transmitted signal at the source is composed of two parts, where the first part is the information symbols and the other is the noise for the eavesdropper. To avoid making noise in the legitimate receiver, these two parts in the transmitted signals are modulated into two orthogonal dimensions according to the instantaneous channel state between the source and the legitimate receiver. We derive an approximate closed-form expression for the (SOP) by adopting the Gauss-Laguerre quadrature (GLQ) method, where the gap between the exact SOP and our approximate SOP converges with increase of the summation terms in the GLQ. To obtain the secrecy diversity order and secrecy array gain for the considered SWIPT system, the asymptotic result of the SOP is also derived. This is tight in the high signal-to-noise ratio region. A novel and robust SOP approximation is also analyzed given a small variance of the signal-to-interference-plus-noise ratio at the eavesdropper. Some selected Monte-Carlo numerical results are presented to validate the correctness of the derived closed-form expressions.

Keywords： 人工噪声；多天线系统；保密中断概率；无线携能    

HTML PDF Collect

Secrecy outage performance for wireless-powered relaying systems with nonlinear energy harvesters Article

继亮 张,高峰 潘,宜原 解

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 2,   Pages 246-252 doi: 10.1631/FITEE.1601352

Abstract: 本文考虑了一个包含单一信源、单一信宿、N (N>1)个无线充电中继和单一窃听者的协作系统。本文假设每个中继都拥有一个非线性的能量收集器，且该能量收集器存在一个饱和阈值以限制收集能量的大小。同时，本文还推导了保密中断概率的解析表达式，并用通过仿真验证了分析结果。

Keywords： 解码转发     能量收集     非线性     保密中断概率    

HTML PDF Collect

Physical layer security of underlay cognitive radio using maximal ratio combining Article

Hui ZHAO,Dan-yang WANG,Chao-qing TANG,Ya-ping LIU,Gao-feng PAN,Ting-ting LI,Yun-fei CHEN

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 9,   Pages 929-937 doi: 10.1631/FITEE.1500351

Abstract: We investigate the secrecy outage performance of maximal ratio combining (MRC) in cognitive radio networks over Rayleigh fading channels. In a single-input multiple-output wiretap system, we consider a secondary user (SU-TX) that transmits confidential messages to another secondary user (SU-RX) equipped with ( 1) antennas where the MRC technique is adopted to improve its received signal-to-noise ratio. Meanwhile, an eavesdropper equipped with ( 1) antennas adopts the MRC scheme to overhear the information between SU-TX and SU-RX. SU-TX adopts the underlay strategy to guarantee the service quality of the primary user without spectrum sensing. We derive the closed-form expressions for an exact and asymptotic secrecy outage probability.

Keywords： Cognitive radio networks     Maximal ratio combining     Secrecy outage probability     Single-input multiple-output    

HTML PDF Collect

Advanced Antennas Push Forward Wireless Connectivity

Kwai Man Luk, Baoyan Duan

Engineering 2022, Volume 11, Issue 4,   Pages 1-2 doi: 10.1016/j.eng.2022.03.003

HTML PDF Collect

Secrecy performance analysis of single-input multiple-output generalized- Article

Hong-jiang LEI,Imran Shafique ANSARI,Chao GAO,Yong-cai GUO,Gao-feng PAN,Khalid A. QARAQE

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 10,   Pages 1074-1084 doi: 10.1631/FITEE.1601070

Abstract: In this paper, the transmission of confidential messages through single-input multiple-output (SIMO) independent and identically generalized- ( G) fading channels is considered, where the eavesdropper overhears the transmission from the transmitter to the receiver. Both the receiver and the eavesdropper are equipped with multiple antennas, and both active and passive eavesdroppings are considered where the channel state information of the eavesdropper’s channel is or is not available at the transmitter. The secrecy performance of SIMO G systems is investigated. Analytical expressions for secrecy outage probability and average secrecy capacity of SIMO systems are derived via two different methods, in which G distribution is approximated by the Gamma and mixture Gamma distributions, respectively. Numerical results are presented and verified via the Monte-Carlo simulation.

Keywords： Physical-layer security     Generalized-K fading     Average secrecy capacity     Secrecy outage probability     Mixture Gamma distribution    

HTML PDF Collect

Multiple-antenna techniques in nonorthogonalmultiple access: a review Regular Papers

Fei-yan TIAN, Xiao-ming CHEN

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 12,   Pages 1665-1697 doi: 10.1631/FITEE.1900405

Abstract: As a promising physical layer technique, nonorthogonal multiple access (NOMA) can admit multiple users over the same space-time resource block, and thus improve the spectral efficiency and increase the number of access users. Specifically, NOMA provides a feasible solution to massive Internet of Things (IoT) in 5G and beyond-5G wireless networks over a limited radio spectrum. However, severe co-channel interference and high implementation complexity hinder its application in practical systems. To solve these problems, multiple-antenna techniques have been widely used in NOMA systems by exploiting the benefits of spatial degrees of freedom. This study provides a comprehensive review of various multiple-antenna techniques in NOMA systems, with an emphasis on spatial interference cancellation and complexity reduction. In particular, we provide a detailed investigation on multiple-antenna techniques in two-user, multiuser, massive connectivity, and heterogeneous NOMA systems. Finally, future research directions and challenges are identified.

Keywords： Nonorthogonal multiple access     Multiple-antenna technique     B5G     Internet of Things    

HTML PDF Collect

Recent Advances in Organ Specific Wireless Bioelectronic Devices: Perspective on Biotelemetry and Power Transfer Using Antenna Systems Review

Ahsan Noor Khan, Young-ok Cha, Henry Giddens, Yang Hao

Engineering 2022, Volume 11, Issue 4,   Pages 27-41 doi: 10.1016/j.eng.2021.10.019

Abstract:

Highlights Bioelectronic devices have revolutionized the course of therapeutic treatment with their ability to harness neuronal activities in the human body. Recent advances in the field of soft, stretchable and biocompatible materials have enabled the development of bioelectronics to treat wide range of chronic ailments and disorders. Such treatments involve the confluence of electronics with neuronal cells or tissues, and mostly require surgical operation to implant the bioelectronic device. For recording neural activities and programming the device non-invasively, copious amount of research is in progress to devise wireless technology enabled bioelectronics. This paper discusses the latest developments in wireless bioelectronic devices for organ specific treatments, including gastrointestinal tract monitoring, retinal prosthesis, auditory nerve and brain stimulation. Major highlights include seminal components that mediate the overall wireless operation, such antennas, rectifiers, amplifier and integrated circuits. Moreover, the constituting materials of antennas, operational frequency and their integration with other electronic components are discussed. Replete perspective on the strategies to energize bioelectronics using wireless power transfer is explained. Communication protocols for biotelemetry are also discussed.The integration of electronics and biology has spawned bioelectronics and opened exciting opportunities to fulfill the unmet needs of therapeutic treatments. Recent developments in nanoelectronics and soft and biocompatible materials have shown potential applicability to clinical practices, including physiological sensing, drug delivery, cardiovascular monitoring, and brain stimulation. To date, most bioelectronic devices require wired connections for electrical control, making their implantation complicated and inconvenient for patients. As an alternative, wireless technology is proliferating to create bioelectronics that offer noninvasive control, biotelemetry, and wireless power transfer (WPT). This review paper provides a comprehensive overview of wireless bioelectronics and ongoing developments in their applications for organ-specific treatments, including disorders and dysfunctions. The main emphasis is on delineating the key features of antennas, namely their radiation characteristics, materials, integration with rest of the electronics, and experimental setup. Although the recent progress in wireless mediated bioelectronics is expected to enhance the control of its functionalities, there are still numerous challenges that need to be addressed for commercialization, as well as to address ever-expanding evolving future therapeutic targets.

Keywords： Bioelectronics     Neural implants     Drug delivery     Antennas     Wireless power    

HTML PDF Collect

Embracing non-orthogonalmultiple access in future wireless networks None

Zhi-guo DING, Mai XU, Yan CHEN, Mu-gen PENG, H. Vincent POOR

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 3,   Pages 322-339 doi: 10.1631/FITEE.1800051

Abstract: This paper provides a comprehensive survey of the impact of the emerging communication technique, non-orthogonal multiple access (NOMA), on future wireless networks. Particularly, how the NOMA principle affects the design of the generation multiple access techniques is introduced first. Then the applications of NOMA to other advanced communication techniques, such as wireless caching, multiple-input multiple-output techniques, millimeter-wave communications, and cooperative relaying, are discussed. The impact of NOMA on communication systems beyond cellular networks is also illustrated, through the examples of digital TV, satellite communications, vehicular networks, and visible light communications. Finally, the study is concluded with a discussion of important research challenges and promising future directions in NOMA.

Keywords： Non-orthogonal multiple access (NOMA)     Wireless caching     Multiple-input multiple-output (MIMO) NOMA     Cooperative NOMA     Millimeter-wave networks     Visible light communications (VLC)    

HTML PDF Collect

Mutual coupling reduction of multiple antenna systems Review

Jia-yin GUO, Feng LIU, Guo-dong JING, Lu-yu ZHAO, Ying-zeng YIN, Guan-long HUANG

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 3,   Pages 366-376 doi: 10.1631/FITEE.1900490

Abstract: A multi-band multi-antenna system has become an important trend in the development of mobile communication systems. However, strong mutual coupling tends to occur between antenna elements with a small space, distorting array antennas’ performance. Therefore, in the multiple-input multiple-output (MIMO) antenna system, high isolation based on miniaturization of the antenna array has been pursued. We study in depth the methods of decoupling between antenna elements. Reasons for the existence of mutual coupling and advantages of mutual coupling reduction are analyzed. Then the decoupling methods proposed in recent works are compared and analyzed. Finally, we propose a metasurface consisting of double-layer short wires, which can be applied to improve the port isolation of antennas arranged along the H-plane and E-plane. Results show that the proposed metasurface has good decoupling effect on a closely placed antenna array.

Keywords： Mutual coupling     Multiple-input multiple-output     Antenna array     Metasurface     Decoupling    

HTML PDF Collect

Scavenging Microwave Wireless Power: A Unified Model, Rectenna Design Automation, and Cutting-Edge Techniques Review

Si-Ping Gao, Jun-Hui Ou, Xiuyin Zhang, Yongxin Guo

Engineering 2023, Volume 30, Issue 11,   Pages 32-48 doi: 10.1016/j.eng.2023.05.019

Abstract:

While sufficient review articles exist on inductive short-range wireless power transfer (WPT), long-haul microwave WPT (MWPT) for solar power satellites, and ambient microwave wireless energy harvesting (MWEH) in urban areas, few studies focus on the fundamental modeling and related design automation of receiver systems. This article reviews the development of MWPT and MWEH receivers, with a focus on rectenna design automation. A novel rectifier model capable of accurately modeling the rectification process under both high and low input power is presented. The model reveals the theoretical boundary of radio frequency-to-direct current (dc) power conversion efficiency and, most importantly, enables an automated system design. The automated rectenna design flow is sequential, with the minimal engagement of iterative optimization. It covers the design automation of every module (i.e., rectifiers, matching circuits,   antennae, and dc–dc converters). Scaling-up of the technique to large rectenna arrays is also possible, where the challenges in array partitioning and power combining are briefly discussed. In addition, several cutting-edge rectenna techniques for MWPT and MWEH are reviewed, including the dynamic range extension technique, the harmonics-based retro-directive technique, and the simultaneous wireless information and power transfer technique, which can be good complements to the presented automated design methodology.

Keywords： Microwave wireless power transfer     Microwave wireless energy harvesting     Unified Rectifier model     Automated rectenna design     Emerging rectenna techniques    

HTML PDF Collect

Artificial Intelligence: Enabling Technology to Empower Society

Yue-Guang Lyu

Engineering 2020, Volume 6, Issue 3,   Pages 205-206 doi: 10.1016/j.eng.2020.01.005

HTML PDF Collect

Forward link outage performance of aeronautical broadband satellite communications Research Articles

Huaicong Kong, Min Lin, Shiwen He, Xiaoyu Liu, Jian Ouyang, Weiping Zhu,linmin@njupt.edu.cn

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 6,   Pages 790-801 doi: 10.1631/FITEE.2000445

Abstract: High-throughput satellites (HTSs) play an important role in future millimeter-wave (mmWave) aeronautical communication to meet high speed and broad bandwidth requirements. This paper investigates the outage performance of an aeronautical broadband satellite communication system’s forward link, where the feeder link from the gateway to the HTS uses and the user link from the HTS to aircraft operates at the mmWave band. In the user link, spot beam technology is exploited at the HTS and a massive antenna array is deployed at the aircraft. We first present a location-based beamforming (BF) scheme to maximize the expected output signal-to-noise ratio (SNR) of the forward link with the amplify-and-forward (AF) protocol, which turns out to be a phased array. Then, by supposing that the FSO feeder link follows Gamma-Gamma fading whereas the mmWave user link experiences shadowed Rician fading, we take the influence of the into account, and derive the closed-form expression of the (OP) for the considered system. To gain further insight, a simple asymptotic OP expression at a high SNR is provided to show the diversity order and coding gain. Finally, numerical simulations are conducted to confirm the validity of the theoretical analysis and reveal the effects of s on the system outage performance.

Keywords： 航空宽带卫星网络；自由空间光传输；高通量毫米波通信；中断概率；相位误差    

HTML PDF Collect

Joint cooperative beamforming and artificial noise design for secureAF relay networks with energy-harvesting eavesdroppers Article

He-hao NIU, Bang-ning ZHANG, Dao-xing GUO, Yu-zhen HUANG, Ming-yue LU

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 6,   Pages 850-862 doi: 10.1631/FITEE.1601832

Abstract: In this paper, we investigate physical layer security for simultaneous wireless information and power transfer in amplify-and-forward relay networks. We propose a joint robust cooperative beamforming and artificial noise scheme for secure communication and efficient wireless energy transfer. Specifically, by treating the energy receiver as a potential eavesdropper and assuming that only imperfect channel state information can be obtained, we formulate an optimization problem to maximize the worst-case secrecy rate between the source and the legitimate information receiver under both the power constraint at the relays and the wireless power harvest constraint at the energy receiver. Since such a problem is non-convex and hard to tackle, we propose a two-level optimization approach which involves a one-dimensional search and semidefinite relaxation. Simulation results show that the proposed robust scheme achieves better worst-case secrecy rate performance than other schemes.

Keywords： Simultaneous wireless information and power transfer     Physical layer security     Relay networks     Cooperative beamforming     Artificial noise    

HTML PDF Collect

Editorial for the Special Issue on Microwave Wireless Power Transfer Technology

Baoyan Duan, Yi Huang

Engineering 2023, Volume 30, Issue 11,   Pages 1-2 doi: 10.1016/j.eng.2023.09.009

HTML PDF Collect

Ergodic secrecy capacity ofMRC/SC in single-inputmultiple-output wiretap systems with imperfect channel state information Article

Hui ZHAO, You-yu TAN, Gao-feng PAN, Yun-fei CHEN

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 4,   Pages 578-590 doi: 10.1631/FITEE.1500430

Abstract: This paper investigates the secrecy performance of maximal ratio combining (MRC) and selection combining (SC) with imperfect channel state information (CSI) in the physical layer. In a single-input multipleoutput (SIMO) wiretap channel, a source transmits confidential messages to the destination equipped with antennas using the MRC/SC scheme to process the received multiple signals. An eavesdropper equipped with antennas also adopts the MRC/SC scheme to promote successful eavesdropping. We derive the exact and asymptotic closed-form expressions for the ergodic secrecy capacity (ESC) in two cases: (1) MRC with weighting errors, and (2) SC with outdated CSI. Moreover, two important indicators, namely high signal-to-noise ratio (SNR) slope and high SNR power offset, which govern ESC at the high SNR region, are derived. Finally, simulations are conducted to validate the accuracy of our proposed analytical models. Results indicate that ESC rises with the increase of the number of antennas and the received SNR at the destination, and fades with the increase of those at the eavesdropper. Another finding is that the high SNR slope is constant, while the high SNR power offset is correlated with the number of antennas at both the destination and the eavesdropper.

Keywords： Ergodic secrecy capacity (ESC)     Maximal ratio combining (MRC)     Weighting errors     Physical layer security     Selection combining (SC)     Single-input multiple-output (SIMO)    

HTML PDF Collect

Title Author Date Type Operation

Secure analysis on artificial-noise-aided simultaneous wireless information and power transfer systems

Wei-min Hou, Qing-shan Tang,cstqs001@126.com

Journal Article

Secrecy outage performance for wireless-powered relaying systems with nonlinear energy harvesters

继亮 张,高峰 潘,宜原 解

Journal Article

Physical layer security of underlay cognitive radio using maximal ratio combining

Hui ZHAO,Dan-yang WANG,Chao-qing TANG,Ya-ping LIU,Gao-feng PAN,Ting-ting LI,Yun-fei CHEN

Journal Article

Advanced Antennas Push Forward Wireless Connectivity

Kwai Man Luk, Baoyan Duan

Journal Article

Secrecy performance analysis of single-input multiple-output generalized-

Hong-jiang LEI,Imran Shafique ANSARI,Chao GAO,Yong-cai GUO,Gao-feng PAN,Khalid A. QARAQE

Journal Article

Multiple-antenna techniques in nonorthogonalmultiple access: a review

Fei-yan TIAN, Xiao-ming CHEN

Journal Article

Recent Advances in Organ Specific Wireless Bioelectronic Devices: Perspective on Biotelemetry and Power Transfer Using Antenna Systems

Ahsan Noor Khan, Young-ok Cha, Henry Giddens, Yang Hao

Journal Article

Embracing non-orthogonalmultiple access in future wireless networks

Zhi-guo DING, Mai XU, Yan CHEN, Mu-gen PENG, H. Vincent POOR

Journal Article

Mutual coupling reduction of multiple antenna systems

Jia-yin GUO, Feng LIU, Guo-dong JING, Lu-yu ZHAO, Ying-zeng YIN, Guan-long HUANG

Journal Article

Scavenging Microwave Wireless Power: A Unified Model, Rectenna Design Automation, and Cutting-Edge Techniques

Si-Ping Gao, Jun-Hui Ou, Xiuyin Zhang, Yongxin Guo

Journal Article

Artificial Intelligence: Enabling Technology to Empower Society

Yue-Guang Lyu

Journal Article

Forward link outage performance of aeronautical broadband satellite communications

Huaicong Kong, Min Lin, Shiwen He, Xiaoyu Liu, Jian Ouyang, Weiping Zhu,linmin@njupt.edu.cn

Journal Article

Joint cooperative beamforming and artificial noise design for secureAF relay networks with energy-harvesting eavesdroppers

He-hao NIU, Bang-ning ZHANG, Dao-xing GUO, Yu-zhen HUANG, Ming-yue LU

Journal Article

Editorial for the Special Issue on Microwave Wireless Power Transfer Technology

Baoyan Duan, Yi Huang

Journal Article

Ergodic secrecy capacity ofMRC/SC in single-inputmultiple-output wiretap systems with imperfect channel state information

Hui ZHAO, You-yu TAN, Gao-feng PAN, Yun-fei CHEN

Journal Article