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Multi-user rate and power analysis in a cognitive radio network with massive multi-input multi-output None

Shang LIU, Ishtiaq AHMAD, Ping ZHANG, Zhi ZHANG

Frontiers of Information Technology & Electronic Engineering 2018, Volume 19, Issue 5,   Pages 674-684 doi: 10.1631/FITEE.1700081

Abstract: and power allocation strategies in an underlay cognitive radio (CR) network that contains relay and massivemulti-input multi-output (MIMO).The downlink transmission performance of a relay-aided massive MIMO network without CR is derived.We show that the massive MIMO with linear pre-coding can mitigate asymptotically the interference ina multi-user underlay CR network.

Keywords： Massive multi-input multi-output     Cognitive radio     Relay network     Transmission rate     Power analysis    

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Cutting CO emissions through demand side regulation: Implications from multi-regional input–output linear

Frontiers of Engineering Management   Pages 452-461 doi: 10.1007/s42524-022-0209-1

Abstract: This study combines multi-regional input–output (MRIO) model with linear programming (LP) model to explore

Keywords： CO2 emissions     demand side regulation     multi-regional input–output model     linear programming    

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A 39 GHz Dual-Channel Transceiver Chipset With an Advanced LTCC Package for 5G Multi-Beam MIMO Systems Aticle

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

Abstract:

This article presents a 39 GHz transceiver front-end chipset for 5G multi-input multi-output (MIMOThe measurement characteristics show that the TX SIP provides 11 dB maximum gain and 10 dBm saturated outputpower, while the RX SIP achieves 52 dB maximum gain, 5.4 dB noise figure, and 7.2 dBm output 1 dB compressionBased on the chipset, a 39 GHz multi-beam prototype is also developed to perform the MIMO operation forThe over-the-air communication link for one- and two-stream transmission indicates that the multi-beam

Keywords： 5G     Multi-beam     Multi-input multi-output     Millimeter-wave     Transceiver     Wireless communication    

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On optimization of cooperative MIMO for underlaid secrecy Industrial Internet of Things Research Article

Xinyao WANG, Xuyan BAO, Yuzhen HUANG, Zhong ZHENG, Zesong FEI

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 2,   Pages 259-274 doi: 10.1631/FITEE.2200188

Abstract: In this paper, techniques are investigated for , which operates as an underlaid cognitive radio system that coexists with a primary user (PU). The underlaid secrecy paradigm is enabled by improving the secrecy rate towards the C-MIMO receiver and reducing the interference towards the PU. Such a communication model is especially suitable for implementing Industrial Internet of Things (IIoT) systems in the unlicensed spectrum, which can trade off spectral efficiency and information secrecy. To this end, we propose an (EAP) method and formulate the secrecy rate optimization problem, which is subject to both the single device power constraint and the interference power constraint. This precoder design is enabled by decomposing the original optimization problem into eigenspace selection and power allocation sub-problems. Herein, the eigenvectors are adaptively selected by the transmitter according to the channel conditions of the underlaid users and the PUs. In addition, a simplified EAP method is proposed for large-dimensional C-MIMO transmission, exploiting the additional spatial degree of freedom for a low-complexity secrecy precoder design. Numerical results show that by transmitting signal and artificial noise in the properly selected eigenspace, C-MIMO can eliminate the secrecy outage and outperforms the fixed eigenspace precoding methods. Moreover, the proposed simplified EAP method for the large-dimensional C-MIMO can significantly improve the secrecy rate.

Keywords： Cognitive radio network     Physical layer security     Cooperative multi-input multi-output (C-MIMO)     Eigenspace-adaptive    

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Compressed sensing-based structured joint channel estimation in a multi-user massive MIMO system Article

Ruo-yu ZHANG, Hong-lin ZHAO, Shao-bo JIA

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 12,   Pages 2082-2100 doi: 10.1631/FITEE.1601635

Abstract: Acquisition of accurate channel state information (CSI) at transmitters results in a huge pilot overhead in massivemultiple input multiple output (MIMO) systems due to the large number of antennas in the base stationcommon sparsity and individual sparsity structures among geographically neighboring users exist in multi-usermassive MIMO systems.

Keywords： Compressed sensing     Multi-user massive multiple input multiple output (MIMO)     Frequency-division duplexing    

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Estimation of regional physical imports and exports of EW-MFA in China using monetary input-output tables

Nan LI, Tianzhu ZHANG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 2,   Pages 242-254 doi: 10.1007/s11783-012-0443-6

Abstract: This method uses provincial monetary input-output tables (MIOT) and international trade statistics.

Keywords： economy-wide material flow accounts (EW-MFA)     monetary input-output table (MIOT)     regional physical imports    

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An investigation on stress distribution effect on multi- piezoelectric energy harvesters

Hailu YANG, Dongwei CAO

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 3,   Pages 301-307 doi: 10.1007/s11709-017-0404-z

Abstract: this paper, the effects of multiple piezoelectric elements on the generation of electrical energy and outputWhen the same multi piezoelectric units work together, if the stress state of the piezoelectric unitsis different, the total output energy affected by the connection mode.For uneven stress distribution, the optimal output mode is that each of the piezoelectric units rectified

Keywords： piezoelectric transducer     uneven stress     impedance matching     optimal energy output    

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Joint DOA and channel estimation with data detection based on 2D unitary ESPRITin massive MIMO systems Article

Jing-ming KUANG, Yuan ZHOU, Ze-song FEI

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 6,   Pages 841-849 doi: 10.1631/FITEE.1700025

Abstract: direction-of-arrival (DOA) and channel estimation with data detection for uniform rectangular arrays (URAs) for the massivemultiple-input multiple-output (MIMO) systems.However, the large number of antennas in a massive MIMO system can lead to a challenge in estimatinglow-complexity approach toward data detection is presented by reducing the dimension of the inversion matrix in massive

Keywords： ) estimation     Channel impulse response estimation     Data detection     Uniform rectangular array (URA)     Massivemultiple-input multiple-output (MIMO)    

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Indoor massivemultiple-inputmultiple-output channel characterization and performance evaluation Article

Jian-zhi LI, Bo AI, Rui-si HE, Qi WANG, Mi YANG, Bei ZHANG, Ke GUAN, Dan-ping HE, Zhang-dui ZHONG, Ting ZHOU, Nan LI

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 6,   Pages 773-787 doi: 10.1631/FITEE.1700021

Abstract: We present a measurement campaign to characterize an indoor massive multiple-input multiple-output (MIMO

Keywords： Massive MIMO     Channel modeling     5G     Shadow fading     Delay spread     Matched filter     Entropy capacity     Condition    

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Ensemble-transfer-learning-based channel parameter prediction in asymmetric massive MIMO systems Research Article

Zunwen HE, Yue LI, Yan ZHANG, Wancheng ZHANG, Kaien ZHANG, Liu GUO, Haiming WANG

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 2,   Pages 275-288 doi: 10.1631/FITEE.2200169

Abstract: However, in the asymmetric massive MIMO system, reciprocity between the uplink (UL) and downlink (DL)In this paper we propose an ensemble-transfer-learning-based channel method for asymmetric massive MIMO

Keywords： Asymmetric massive multiple-input multiple-output (MIMO) system     Channel model     Ensemble learning     Instance    

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Diversity Glass Antennas for Tri-Band WiFi Applications Article

Peng Fei Hu, Kwok Wa Leung, Kwai Man Luk, Yong Mei Pan, Shao Yong Zheng

Engineering 2023, Volume 23, Issue 4,   Pages 157-169 doi: 10.1016/j.eng.2022.09.011

Abstract:

This paper investigates two novel polarization- and pattern-diversity glass dielectric resonator antennas (DRAs), both of which are for tri-band (2.4, 5.2, and 5.8 GHz) wireless fidelity (WiFi) applications. It also investigates what type of diversity antenna is most suitable for WiFi router applications by comparing the two DRAs, along with a new space-diversity glass DRA. These three diversity glass DRAs are also compared with a commercial space-diversity monopole pair to benchmark the performance of the glass DRA in WiFi router applications. In our polarization-diversity antenna, a double-port feeding scheme is developed to excite different DRA modes. The frequencies of the DRA modes are tuned by using a stepped DRA. For the pattern-diversity design, a stacked DRA is introduced to broaden the bandwidth for both the conical and broadside radiation modes. All three of the new diversity antennas were fabricated and measured to verify the simulations. In our experiment, the bit error rate (BER) of the three diversity glass antennas and the reference space-diversity monopole antenna was also measured, and the results are compared and discussed. It is found that the polarization-diversity omnidirectional DRA has the most stable BER among the three.
 

Keywords： WiFi Diversity antennas Multi-frequency     Glass     Dielectric resonator antennas     Multiple-input multiple-output    

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The Analysis on Output-input Ratio of Artificial Supplementary Energy in Agro-eco-engineering

Bian Yousheng,Liu Yingkun,Bian Jing

Strategic Study of CAE 2006, Volume 8, Issue 8,   Pages 28-32

Abstract:

The output-input ratio of the artificial Supplementary energy reflects the function and productivityThe output-input ratio for artificial supplementary energy of Henan Xinxian´10 peasant families

Keywords： agro-eco-engineering     output-input ratio of energy    

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Energy-efficient power amplifiers and linearization techniques for massive MIMO transmitters: a review Review Articles

Xin LIU, Guan-sheng LV, De-han WANG, Wen-hua CHEN, Fadhel M. GHANNOUCHI

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 1,   Pages 72-96 doi: 10.1631/FITEE.1900467

Abstract: been developed to accommodate the explosive growth in the data transmission rate and application of massivemultiple input multiple output (mMIMO) systems.

Keywords： Energy-efficient     Linearization     Massive multiple input multiple output (mMIMO)     Monolithic microwave integrated    

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Optimal synchronization control for multi-agent systems with input saturation: a nonzero-sum game Research Article

Hongyang LI, Qinglai WEI

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 7,   Pages 1010-1019 doi: 10.1631/FITEE.2200010

Abstract: The multi-agent game theory is introduced to transform the problem into a multi-agent .equilibrium can be achieved by solving the coupled Hamilton–Jacobi–Bellman (HJB) equations with nonquadratic input

Keywords： Optimal synchronization control     Multi-agent systems     Nonzero-sum game     Adaptive dynamic programming     Input saturation     Off-policy reinforcement learning     Policy iteration    

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5G evolution promoting innovation of antenna systems Correspondences

Feng GAO, Peng GAO, Wen-tao ZHU, Chen-xi ZHANG, Xian-kun MENG, Run-hong SHAN

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 1,   Pages 188-194 doi: 10.1631/FITEE.1900561

Abstract: Weight optimization methods of massive multiple-input multiple-output (MIMO) antennas are proposed and

Keywords： Fifth generation (5G)     Massive multiple-input multiple-output (MIMO) antenna array     Power consumption     Weight    

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Title Author Date Type Operation

Multi-user rate and power analysis in a cognitive radio network with massive multi-input multi-output

Shang LIU, Ishtiaq AHMAD, Ping ZHANG, Zhi ZHANG

Journal Article

Cutting CO emissions through demand side regulation: Implications from multi-regional input–output linear

Journal Article

A 39 GHz Dual-Channel Transceiver Chipset With an Advanced LTCC Package for 5G Multi-Beam MIMO Systems

Yiming Yu,Zhilin Chen,Chenxi Zhao,Huihua Liu,Yunqiu Wu,Wen-Yan Yin,Kai Kang

Journal Article

On optimization of cooperative MIMO for underlaid secrecy Industrial Internet of Things

Xinyao WANG, Xuyan BAO, Yuzhen HUANG, Zhong ZHENG, Zesong FEI

Journal Article

Compressed sensing-based structured joint channel estimation in a multi-user massive MIMO system

Ruo-yu ZHANG, Hong-lin ZHAO, Shao-bo JIA

Journal Article

Estimation of regional physical imports and exports of EW-MFA in China using monetary input-output tables

Nan LI, Tianzhu ZHANG

Journal Article

An investigation on stress distribution effect on multi- piezoelectric energy harvesters

Hailu YANG, Dongwei CAO

Journal Article

Joint DOA and channel estimation with data detection based on 2D unitary ESPRITin massive MIMO systems

Jing-ming KUANG, Yuan ZHOU, Ze-song FEI

Journal Article

Indoor massivemultiple-inputmultiple-output channel characterization and performance evaluation

Jian-zhi LI, Bo AI, Rui-si HE, Qi WANG, Mi YANG, Bei ZHANG, Ke GUAN, Dan-ping HE, Zhang-dui ZHONG, Ting ZHOU, Nan LI

Journal Article

Ensemble-transfer-learning-based channel parameter prediction in asymmetric massive MIMO systems

Zunwen HE, Yue LI, Yan ZHANG, Wancheng ZHANG, Kaien ZHANG, Liu GUO, Haiming WANG

Journal Article

Diversity Glass Antennas for Tri-Band WiFi Applications

Peng Fei Hu, Kwok Wa Leung, Kwai Man Luk, Yong Mei Pan, Shao Yong Zheng

Journal Article

The Analysis on Output-input Ratio of Artificial Supplementary Energy in Agro-eco-engineering

Bian Yousheng,Liu Yingkun,Bian Jing

Journal Article

Energy-efficient power amplifiers and linearization techniques for massive MIMO transmitters: a review

Xin LIU, Guan-sheng LV, De-han WANG, Wen-hua CHEN, Fadhel M. GHANNOUCHI

Journal Article

Optimal synchronization control for multi-agent systems with input saturation: a nonzero-sum game

Hongyang LI, Qinglai WEI

Journal Article

5G evolution promoting innovation of antenna systems

Feng GAO, Peng GAO, Wen-tao ZHU, Chen-xi ZHANG, Xian-kun MENG, Run-hong SHAN

Journal Article