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Wei Fan, Lassi Hentilä, Pekka Kyösti,wfa@es.aau.dk
Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 4, Pages 548-559 doi: 10.1631/FITEE.2000484
Keywords: 空间信道模型;空口测试;无线线缆;多探头电波暗室;FR2验证
Over-the-air measurement for MIMO systems Review Articles
Jun Li, Yihong Qi, Jun Fan,jun.li@generaltest.com,yihong.qi@generaltest.com
Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 8, Pages 1046-1058 doi: 10.1631/FITEE.2000230
Keywords: 空中(OTA)测试;无线性能测试;第五代(5G)及超5代;多入多出(MIMO);多探头法(MPAC);辐射两步法(RTS);混响室加通道模拟器法(RC+CE)
Qiao-mu JIANG, Hui-fang CHEN, Lei XIE, Kuang WANG
Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 10, Pages 1665-1676 doi: 10.1631/FITEE.1700203
Keywords: Cognitive radio network Primary user emulation attack Subspace-based blind channel estimation Channel impulse response
Peize Zhang, Haiming Wang, Wei Hong,pzzhang@seu.edu.cn,hmwang@seu.edu.cn,weihong@seu.edu.cn
Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 4, Pages 471-487 doi: 10.1631/FITEE.2000489
Keywords: 毫米波通信;分簇;绕射;多路通道;传播测量
Prior information based channel estimation for millimeter-wave massive MIMO vehicular communications in 5G and beyond Research Articles
Zhao Yi, Weixia Zou, Xuebin Sun,yz17tx@bupt.edu.cn,zwx0218@bupt.edu.cn
Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 6, Pages 777-789 doi: 10.1631/FITEE.2000515
Keywords: 大规模多入多出;毫米波;信道估计;车辆通信;时变
Improving the Performance of OFDM Channel Estimation through Subspace Projecting and Tracking
Dong Liang,Cao Xiuying,Bi Guangguo
Strategic Study of CAE 2006, Volume 8, Issue 11, Pages 86-93
The LS channel estimation of OFDM systems can be viewed as a noisy observation of the true channel frequency response, so the noise component can be compressed through subspace projecting. In this paper, the substance of the improvement of LS channel estimation is analyzed when subspace projecting is enforced, and the general framework to perform subspace projecting in the context of OFDM channel estimation is given, based on which this method is exterded to non-LS channel estimation. When signal subspace varies with time, subspace tracking should be performed to maintain a good estimation of signal subspace. At the end of this paper, a subspace tracking based parametric channel estimator is presented, and computer simulation shows that this channel estimator outperforms its nonparametric counterparts.
Keywords: OFDM subspace projecting tracking channel estimation
Cyberspace Security Models and Systematic Development from Multiple Perspectives
Sun Shuai , Zhang Lei , Hu Chunhui , Fu Shouqing , Qing Yu , Cui Yong
Strategic Study of CAE 2023, Volume 25, Issue 6, Pages 116-125 doi: 10.15302/J-SSCAE-2023.06.009
Keywords: cyberspace security model security capability derivative risk
Optimal two-impulse space interception with multiple constraints Research Articles
Li Xie, Yi-qun Zhang, Jun-yan Xu,lixie@ncepu.edu.cn,yiqunzhang@hotmail.com,junyan_Xu@sina.cn
Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 7, Pages 963-1118 doi: 10.1631/FITEE.1800763
Verification of HY-2 satellite radar altimeter wind retrieval
Jia Yongjun,Zhang Youguang,Lin Mingsen
Strategic Study of CAE 2014, Volume 16, Issue 6, Pages 54-59
Keywords: wind speed retrieval two-parameter algorithm radar altimeter HY-2
Multi-agent deep reinforcement learning for end–edge orchestrated resource allocation in industrial wireless networks Research Article
Xiaoyu LIU, Chi XU, Haibin YU, Peng ZENG,liuxiaoyu1@sia.cn,xuchi@sia.cn,yhb@sia.cn,zp@sia.cn
Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 1, Pages 47-60 doi: 10.1631/FITEE.2100331
Keywords: Multi-agent deep reinforcement learning End–edge orchestrated Industrial wireless networks Delay Energy consumption
Modeling and performance analysis of OAM-GSM millimeter-wave wireless communication systems
Qi Zhang, Xusheng Xiong, Qiang Li, Tao Han, Yi Zhong,qiqiz@hust.edu.cn,xiongxusheng@hust.edu.cn,qli_patrick@hust.edu.cn,hantao@hust.edu.cn,yzhong@hust.edu.cn
Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 4, Pages 527-547 doi: 10.1631/FITEE.2000444
Keywords: 轨道角动量;广义空间调制;毫米波通信;信道容量;能量效率;误比特率
State of the Art of Compartment Fire Modeling
Zheng Xin,Yuan Hongyong
Strategic Study of CAE 2004, Volume 6, Issue 3, Pages 68-74
The aim of the present review is to provide the reader with a brief discussion on the mathematical modeling techniques, currently available for compartment fires. The relevant underlying physical assumptions are presented first and the conventional model performance is analyzed in the range of application. The final part of the review deals with current trends and perspective of mathematic fire models and highlights the need for extensive validation studies and interaction between theoretical and experimental investigations.
Keywords: compartment field model zone model network model FZN (field zone and network) model empirical model
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
Cooperative channel assignment for VANETs based on multiagent reinforcement learning Research Articles
Yun-peng Wang, Kun-xian Zheng, Da-xin Tian, Xu-ting Duan, Jian-shan Zhou,ypwang@buaa.edu.cn,zhengkunxian@buaa.edu.cn,dtian@buaa.edu.cn,duanxuting@buaa.edu.cn
Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 7, Pages 1047-1058 doi: 10.1631/FITEE.1900308
Keywords: Vehicular ad-hoc networks Reinforcement learning Dynamic channel assignment Multichannel
Yiming Yu,Zhilin Chen,Chenxi Zhao,Huihua Liu,Yunqiu Wu,Wen-Yan Yin,Kai Kang
Engineering 2023, Volume 22, Issue 3, Pages 125-140 doi: 10.1016/j.eng.2022.04.023
This article presents a 39 GHz transceiver front-end chipset for 5G multi-input multi-output (MIMO) applications. Each chip includes two variable-gain frequency-conversion channels and can support two simultaneous independent beams, and the chips also integrate a local-oscillator chain and digital module for multi-chip extension and gain-state control. To improve the radio-frequency performance, several circuit-level improvement techniques are proposed for the key building blocks in the front-end system. Furthermore, an advanced low-temperature co-fired ceramic process is developed to package the 39 GHz dual-channel transceiver chipset, and it achieves low packaging loss and high isolation between the two transmitting (TX)/receiving (RX) channels. Both the chip-level and system-in-package (SIP)-level measurements are conducted to demonstrate the performance of the transceiver chipset. The measurement characteristics show that the TX SIP provides 11 dB maximum gain and 10 dBm saturated output power, while the RX SIP achieves 52 dB maximum gain, 5.4 dB noise figure, and 7.2 dBm output 1 dB compression point. Single-channel communication link testing of the transceiver exhibits an error vector magnitude (EVM) of 3.72% and a spectral efficiency of 3.25 bit·s−1·Hz−1 for 64-quadrature amplitude modulation (QAM) modulation and an EVM of 3.76% and spectral efficiency of 3.9 bit·s−1·Hz−1 for 256-QAM modulation over a 1 m distance. Based on the chipset, a 39 GHz multi-beam prototype is also developed to perform the MIMO operation for 5G millimetre wave applications. The over-the-air communication link for one- and two-stream transmission indicates that the multi-beam prototype can cover a 5–150 m distance with comparable throughput.
Keywords: 5G Multi-beam Multi-input multi-output Millimeter-wave Transceiver Wireless communication
Title Author Date Type Operation
Spatial fading channel emulation for over-the-air testing of millimeter-wave radios: concepts and experimental validations
Wei Fan, Lassi Hentilä, Pekka Kyösti,wfa@es.aau.dk
Journal Article
Over-the-air measurement for MIMO systems
Jun Li, Yihong Qi, Jun Fan,jun.li@generaltest.com,yihong.qi@generaltest.com
Journal Article
On detecting primary user emulation attack using channel impulse response in the cognitive radio network
Qiao-mu JIANG, Hui-fang CHEN, Lei XIE, Kuang WANG
Journal Article
Radio propagation measurement and cluster-based analysis for millimeter-wave cellular systems in dense urban environments
Peize Zhang, Haiming Wang, Wei Hong,pzzhang@seu.edu.cn,hmwang@seu.edu.cn,weihong@seu.edu.cn
Journal Article
Prior information based channel estimation for millimeter-wave massive MIMO vehicular communications in 5G and beyond
Zhao Yi, Weixia Zou, Xuebin Sun,yz17tx@bupt.edu.cn,zwx0218@bupt.edu.cn
Journal Article
Improving the Performance of OFDM Channel Estimation through Subspace Projecting and Tracking
Dong Liang,Cao Xiuying,Bi Guangguo
Journal Article
Cyberspace Security Models and Systematic Development from Multiple Perspectives
Sun Shuai , Zhang Lei , Hu Chunhui , Fu Shouqing , Qing Yu , Cui Yong
Journal Article
Optimal two-impulse space interception with multiple constraints
Li Xie, Yi-qun Zhang, Jun-yan Xu,lixie@ncepu.edu.cn,yiqunzhang@hotmail.com,junyan_Xu@sina.cn
Journal Article
Verification of HY-2 satellite radar altimeter wind retrieval
Jia Yongjun,Zhang Youguang,Lin Mingsen
Journal Article
Multi-agent deep reinforcement learning for end–edge orchestrated resource allocation in industrial wireless networks
Xiaoyu LIU, Chi XU, Haibin YU, Peng ZENG,liuxiaoyu1@sia.cn,xuchi@sia.cn,yhb@sia.cn,zp@sia.cn
Journal Article
Modeling and performance analysis of OAM-GSM millimeter-wave wireless communication systems
Qi Zhang, Xusheng Xiong, Qiang Li, Tao Han, Yi Zhong,qiqiz@hust.edu.cn,xiongxusheng@hust.edu.cn,qli_patrick@hust.edu.cn,hantao@hust.edu.cn,yzhong@hust.edu.cn
Journal Article
The Research and Implementation of WAPI Authentication on WLAN Access Point
Song Yubo,Yang Xiaohui,Hu Aiqun,Wang Zhili
Journal Article
Cooperative channel assignment for VANETs based on multiagent reinforcement learning
Yun-peng Wang, Kun-xian Zheng, Da-xin Tian, Xu-ting Duan, Jian-shan Zhou,ypwang@buaa.edu.cn,zhengkunxian@buaa.edu.cn,dtian@buaa.edu.cn,duanxuting@buaa.edu.cn
Journal Article