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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
Keywords： 人工噪声；多天线系统；保密中断概率；无线携能
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
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
A comprehensive review of optical wireless power transfer technology Review
Syed Agha Hassnain MOHSAN, Haoze QIAN, Hussain AMJAD,Hassnainagha@zju.edu.cn
Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 6, Pages 767-800 doi: 10.1631/FITEE.2100443
Keywords： Wireless power transmission Optical wireless power transfer Distributed laser charging Laser diode Solar cell
Tayyab MEHMOOD, Hina QAYYUM, Salman GHAFOOR
Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 2, Pages 300-306 doi: 10.1631/FITEE.1700056
A radio-over-fiber (RoF) distributed antenna system (DAS) architecture is proposed, where millimeter wave (mm-wave) signals are transmitted to four different radio access units (RAUs) arranged in a ring topology. The proposed architecture transmits duplex data of 128 Mb/s to each RAU in both downlink (DL) and uplink (UL) directions. The radio frequency (RF) signals are transmitted by polarization multiplexing a multi-wavelength source. Millimeter-wave signals at a frequency of 25 GHz are generated at each RAU using remote heterodyne detection. The proposed architecture provides increased coverage while maintaining good bit error rate (BER) results.
Keywords： Radio over fiber Millimeter wave Radio access units
From Terahertz Imaging to Terahertz Wireless Communications Review
Yi Huang,Yaochun Shen,Jiayou Wang
Engineering 2023, Volume 22, Issue 3, Pages 106-124 doi: 10.1016/j.eng.2022.06.023
Terahertz (THz) technology is probably best known to the public as a powerful tool for imaging, since it has been applied in security and medical scanning, resulting in numerous impressive images that would be unobtainable using other technologies. With the roll-out of 5G mobile networks, research into 6G wireless communications is heating up. It is envisioned that THz technology will be used for 6G and future wireless communications. In this paper, we review how THz technology has been employed for imaging and wireless communications, identify state-of-the-art developments in the field, and then examine and compare common devices and issues in both applications. The possibility of integrating THz imaging/sensing and wireless communications is considered, and challenges and future perspectives are presented and discussed. It is shown that THz technology is indeed a key enabling technology for both imaging and wireless communications in the future.
Keywords： Communications Imaging Terahertz technology Wireless communications
Capacity of VoIP in IEEE 802.11 Wireless LAN
Chen Liquan,Hu Aiqun,Zhou Xueli
Strategic Study of CAE 2005, Volume 7, Issue 7, Pages 81-85
Voice transmitted over wireless LAN faces serious challenge because of the fluctuation of the wireless channel. In this paper, the transmission of voice over wireless LAN is firstly analyzed. Taking collision probability into account, the stochastic analysis based on a Markov chain to calculate the upper bound number of simultaneous VoIP calls that can be supported in a single cell of an IEEE 802. llb/a/g network is proposed. The upper bound capacities of G. 711, G. 729 and G. 723.1 code transmitted over 802. llb/a/g are figured out. The simulation results from NS2 simulator have validated the analysis values.
Keywords： wireless LAN voice over IP capacity Markov chain
New 3G System——Mobile Wireless Internet
Hou Ziqiang
Strategic Study of CAE 2002, Volume 4, Issue 7, Pages 86-92
A New 3G broadband mobile wireless Internet has been proposed. New 3G system has some specifications of “Beyond IMT - 2000”，but using 3G frequency and inside 3G framework. Fixed telecommunication operator can cut down the cost of feature rich voice and mobile multimedia services, by using existing fixed broadband IP network infrastructure to deploy broadband mobile wireless Internet. This is opportunity for China to lead the trend of broadband mobile wireless Internet in the world.
Keywords： 3G mobile phone mobile internet broadband mobile wireless internet WLAN TD — LAS mobile IP Ipv6 IP core networks
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
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
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
Hydrogen Energy Development Potential and Countermeasures of Port Cities in China
Liu Kemeng , Gao Junlian , Sun Xudong , Zhang Bo , Wu Rong
Strategic Study of CAE 2022, Volume 24, Issue 3, Pages 108-117 doi: 10.15302/J-SSCAE-2022.03.012
Hydrogen energy is an important direction for China’s energy transformation and industrial development. Port cities are key areas for China’s economic development and opening up to the outside world. Accelerating the transition to green and low-carbon energies and scaling up the development and utilization of hydrogen energy are crucial for promoting high-quality development of port cities in China. This study analyzes the foundation for developing hydrogen energy in port cities in China, and analyzes the development status, existing planning objectives, and problems. Based on this, the development directions of hydrogen energy in those regions are discussed. This research indicates that port cities in China have obvious regional advantages, rich hydrogen energy resources, prominent application scenarios, strong research and development abilities, and high talent concentration. Key hydrogen energy projects can be deployed and implemented through application scenarios such as ports, heavy trucks, and buses to build port cities into an international energy hub with advanced hydrogen energy technology, sufficient hydrogen energy supply, and complete industrial chain. Furthermore, we suggest that the port cities should actively cooperate with each other to build a healthy ecosystem, build an innovation system by making up for their weaknesses, promote scenario applications while insisting the safety first principle,and encourage technological innovation to stimulate development momentums.
Keywords： port cities hydrogen technology hydrogen application international hydrogen transportation hub
Pricing Based Adaptive Call Admission Control Algorithm for Wireless Networks
Zhang Xue
Strategic Study of CAE 2006, Volume 8, Issue 4, Pages 32-38
In order to efficiently and effectively control the use of wireless network resources, in this paper, according to the characteristic of adaptive multimedia applications in which bandwidths can be adjusted dynamically, and the influence of pricing on the users' behavior, an adaptive admission control algorithm integrated with pricing is proposed. The algorithm, in with the price is adjusted dynamically based on the current network conditions, is fit for the multi-priorilies services. Attempt is tried to make best balance between the efficiency and simplicity for the pricing scheme. Comparison of the performance of the proposed approach is made with the corresponding results of conventional systems where pricing is not taken into consideration in CAC process. The performance results verify the considerable improvement achieved by the integration of pricing with CAC in wireless networks.
Keywords： wireless networks adaptive call admission control microeconomic theory pricing connection level QoS
A deployment strategy for wireless sensor networks using indoor radio propagation model
Huo Hongwei,Gao Shuai,Niu Yanchao,Zhang Sidong
Strategic Study of CAE 2008, Volume 10, Issue 9, Pages 64-69
Deployment strategy for Wireless Sensor Networks is an important issue. Most research works are based on the horizontal Scheme. However, many factors including the height of node's antenna, one of the vertical factors, can also affect the indoor communication performance of sensor nodes, which is a main consideration to design an appropriate deployment scheme. In this paper, the variance of coverage caused by the different antenna's height is analyzed, using log-distance indoor radio propagation model at 2.4GHz ISM band. The relationship between effective communication range and effective sensing range is also discussed. Based on traditional plane deployment strategies, a novel method is proposed to avoid the sensing collapsars. It first calculates the effective communication ranges, and eliminates the useless antenna's height parameter which can not affect the full coverage of sensing area and communication area. Then, it projects the residual height parameter to the plane and uses classical Deploy Rules to place the sensor nodes. Experiments and simulations indicate that this deployment strategy is useful and effective.
Keywords： wireless sensor network effective communication range effective sensing range sensing collapsar coverage
The Design on the Security Architecture of Public WLAN Based on Access Controller Mode
Song Yubo, Huai qun, Yang Xiaohui
Strategic Study of CAE 2008, Volume 10, Issue 8, Pages 56-59
The security problem, such as network security, user data protection, authentication, mobile management and network services are becoming more and more important in Public WLAN. This paper focuses on the design research of the PWLAN security architecture. A security model based on access controller is proposed in this paper. Furthermore, a compound 802.1x and WEB authentication scheme is provided to ensures cryptographically protected access while preserving pre-existing public WLAN payment models.
Keywords： public WLAN security architecture authentication access controller
The Research and Implementation of WAPI Authentication on WLAN Access Point
Song Yubo,Yang Xiaohui,Hu Aiqun,Wang Zhili
Strategic Study of CAE 2005, Volume 7, Issue 9, Pages 65-69
With the wireless LAN technologies being widely applied, new WLAN security standards have been proposed to enhance the WLAN security. In this paper, through discussing the technology characteristic and the basic framework of the WAPI standard, the detail of the application of the WAPI authentication procedure on the WLAN access point was given. Furthermore, the performance of the authentication procedure was discussed.
Keywords： WLAN WAPI test analysis
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
Editorial for the Special Issue on Microwave Wireless Power Transfer Technology
Baoyan Duan, Yi Huang
Journal Article
A comprehensive review of optical wireless power transfer technology
Syed Agha Hassnain MOHSAN, Haoze QIAN, Hussain AMJAD,Hassnainagha@zju.edu.cn
Journal Article
Polarizationmultiplexing based duplex radio-over-fiber link for millimeterwave signal transmission to a ring of multiple radio access units
Tayyab MEHMOOD, Hina QAYYUM, Salman GHAFOOR
Journal Article
From Terahertz Imaging to Terahertz Wireless Communications
Yi Huang,Yaochun Shen,Jiayou Wang
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
Hydrogen Energy Development Potential and Countermeasures of Port Cities in China
Liu Kemeng , Gao Junlian , Sun Xudong , Zhang Bo , Wu Rong
Journal Article
Pricing Based Adaptive Call Admission Control Algorithm for Wireless Networks
Zhang Xue
Journal Article
A deployment strategy for wireless sensor networks using indoor radio propagation model
Huo Hongwei,Gao Shuai,Niu Yanchao,Zhang Sidong
Journal Article
The Design on the Security Architecture of Public WLAN Based on Access Controller Mode
Song Yubo, Huai qun, Yang Xiaohui
Journal Article
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