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The V－BLAST Detection for MIMO MC－CDMA System

Yang Jie,Feng Guangzeng

Strategic Study of CAE 2007, Volume 9, Issue 1,   Pages 58-62

Abstract:

This paper investigates V-BLAST MC-CDMA down link.A V-BLAST detector per subcarrier is proposed for MIMO MC-CDMA system in this paper and the system performance with var ious numbers of V -BLAST antennas and users for such a system is evaluated throu gh simulations.

Keywords： multiple input multiple output(MIMO)     orthogonal frequency division multiplexing(OFDM)     layered space唱timecode(LST)     zero force(ZF)algorithm     minimum mean square error(MMSE)    

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Efficient detection methods for amplify-and-forward relay-aided device-to-device systems with full-rate space-timeblock code Article

Kang-li ZHANG, Cong ZHANG, Fang-lin GU, Jian WANG

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 6,   Pages 788-795 doi: 10.1631/FITEE.1700018

Abstract: circumvent the prohibitive complexity problem of traditional maximum likelihood (ML) detection for full-rate space-timeblock code (FSTBC) transmission, two low-complexity detection methods are proposed, i.e., the detection

Keywords： Device-to-device     Relay     Detection     Full-rate space-time block code    

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Designing Space-time Trellis Codes in Flat Fast Fading Channels With Large Number of Antennas

Geng Jia,Cao Xiuying,Bi Guangguo

Strategic Study of CAE 2006, Volume 8, Issue 6,   Pages 48-54

Abstract:

In recent years space-time trellis codes (STTCs) have attracted a great amount of research interestIn flat fast fading channels, when the number of antennas is large, the space-time trellis codes designIn addition, a new reason is given, which can explain the different performance of a code between in

Keywords： space-time trellis code     criterion     flat fast fading     distance     distribution    

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Uncoupled state space solution to layered poroelastic medium with anisotropic permeability and compressible

Zhiyong AI, Wenze ZENG, Yichong CHENG, Chao WU

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2,   Pages 171-179 doi: 10.1007/s11709-011-0103-0

Abstract: This paper presents an uncoupled state space solution to three-dimensional consolidation of layered poroelasticStarting from the basic equations of poroelastic medium, and introducing intermediate variables, the state spacewith the continuity conditions between adjacent layers and boundary conditions, the uncoupled state spacesolution of a layered poroelastic medium is obtained by using the transfer matrix method.

Keywords： uncoupled state space solution     layered poroelastic medium     three-dimensional consolidation     anisotropic    

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FULL TIME-SPACE GOVERNANCE STRATEGY AND TECHNOLOGY FOR CROPLAND NON-POINT POLLUTION CONTROL IN CHINA

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 4,   Pages 593-606 doi: 10.15302/J-FASE-2023522

Abstract: In this review, a proposal is made for a full time-space governance strategy that prioritizes sourceThe 4R chain technology system with the full time-space governance strategy was applied at the scale

Keywords： 4R chain technology system     agricultural non-point source pollution     case study     full time-space governance    

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A time−space porosity computational model for concrete under sulfate attack

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0985-7

Abstract: damage and cement hydration on the diffusion of sulfate ions, the expansion deformation and porosity space−time distribution are obtained using the finite difference method.

Keywords： expansion deformation     porosity     internal expansion stress     external sulfate attack     mechanical–chemical coupling model    

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Aneffective approach for low-complexity maximumlikelihood based automatic modulation classification of STBC-MIMOsystems Article

Maqsood H. SHAH, Xiao-yu DANG

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 3,   Pages 465-475 doi: 10.1631/FITEE.1800306

Abstract: low-complexity likelihood methodology is proposed for automatic modulation classification of orthogonal space-timeblock code (STBC) based multiple-input multiple-output (MIMO) systems.Alamouti-STBC systems with 2 ×2 and 2 ×1 and space-time transmit diversity with a 4 ×4 transmit and receive

Keywords： Multiple-input multiple-output     Space-time block code     Maximum likelihood     Automatic modulation classification    

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Simulation and Evaluation of Real-Time and Intelligent Space-Based Information Service System of China

Jiang Hao, Li Deren, Shen Xin, Wu Jing

Strategic Study of CAE 2020, Volume 22, Issue 2,   Pages 153-160 doi: 10.15302/J-SSCAE-2020.02.019

Abstract:

The real-time and intelligent space-based information service systemis a next-generation space-based information system featuring multi-satellite coordination and multi-networkTo support the top-level design and construction of the real-time and intelligent space-based informationThis study can provide technical supports for the feasibility evaluation and construction of the real-timeand intelligent space-based information
service system.

Keywords： space-based information     real-time services     simulation     evaluation     low-orbit communication satellite system    

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Stability analysis of layered slopes in unsaturated soils

Guangyu DAI; Fei ZHANG; Yuke WANG

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 3,   Pages 378-387 doi: 10.1007/s11709-022-0808-2

Abstract: This study presents stability analyses of layered soil slopes in unsaturated conditions and uses a limitAn example of a two-layered slope in clay and silt is selected to verify the used method by comparingParametric analyses are conducted to explore the influences of the matric suction on the stability of layeredresults show that larger suction stress provided in unsaturated clay dominates the stability of the layeredInfiltration/evaporation can obviously affect the stability of unsaturated layered slopes, but their

Keywords： slope stability     suction stress     unsaturated soil     layered slope     limit equilibrium    

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Traffic services for vehicles: the process from receiving raw probe data to space-time diagrams and the

Markus AUER, Hubert REHBORN, Sven-Eric MOLZAHN, Micha KOLLER

Frontiers of Engineering Management 2017, Volume 4, Issue 4,   Pages 490-497 doi: 10.15302/J-FEM-2017008

Abstract: After the matching process, space-time-diagrams are created of the probe data showing traffic situationdetails over space and time.that when 2% of connected vehicles in the total traffic flow are sending their GPS data in shorter time

Keywords： floating car data     map matching     three phase traffic theory     traffic reconstruction     traffic service quality     navigation systems    

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Research on the Development Strategy of Real-time and Intelligent Space-Based Information Service System

Li Deren , Shen Xin

Strategic Study of CAE 2020, Volume 22, Issue 2,   Pages 138-143 doi: 10.15302/J-SSCAE-2020.02.017

Abstract:

Real-time and intelligent space-based information service system is aIt delivers space-based information to civil and military users as required in real time, relying onThis paper first analyzes the strategic requirements for real-time and intelligent space-based informationMoreover, it expounds the basic concept, objectives, and technical architecture of the real-time andThe real-time intelligent space-based information service system can be established through three steps

Keywords： space-based information     real-time intelligent service     system construction     technical architecture     strategic    

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Integrating space and time: a case for phenological context in grazing studies and management

Dawn M. BROWNING, Sheri SPIEGAL, Richard E. ESTELL, Andres F. CIBILS, Raul H. PEINETTI

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 1,   Pages 44-56 doi: 10.15302/J-FASE-2017193

Abstract: In water-limited landscapes, patterns in primary production are highly variable across space and timeCows foraged an average of 9.7 h daily and spent more time foraging with more concentrated search patterns

Keywords： GPS collars     Jornada Experimental Range     land-surface phenology     livestock movement     LTAR     MODIS NDVI     rangeland    

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Quantification of seepage in a multi-layered disconnected river-aquifer system

Jiang LI, Haizhu HU, Xiaomin MAO, Yi LIU

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 2,   Pages 237-245 doi: 10.15302/J-FASE-2017135

Abstract: The vadose zone under riverbeds usually exhibits a multi-layered structure, particularly when paved withby assessing the dominant low permeability layers (including but not limited to the liners) in multi-layered

Keywords： infiltration     low permeability liner     multi-layered porous media     river-aquifer seepage    

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Crack evolution of soft–hard composite layered rock-like specimens with two fissures under uniaxial compression

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1372-1389 doi: 10.1007/s11709-021-0772-2

Abstract: Acoustic emission and digital image correlation were used to study the spatiotemporal evolution characteristics of crack extension of soft and hard composite laminated rock masses (SHCLRM) containing double fissures under uniaxial compression. The effects of different rock combination methods and prefabricated fissures with different orientations on mechanical properties and crack coalescence patterns were analyzed. The characteristics of the acoustic emission source location distribution, and frequency changes of the crack evolution process were also investigated. The test results show that the damage mode of SHCLRM is related to the combination mode of rock layers and the orientation of fractures. Hard layers predominantly produce tensile cracks; soft layers produce shear cracks. The first crack always sprouts at the tip or middle of prefabricated fractures in hard layers. The acoustic emission signal of SHCLRM with double fractures has clear stage characteristics, and the state of crack development can be inferred from this signal to provide early warning for rock fracture instability. This study can provide a reference for the assessment of the fracture development status between adjacent roadways in SHCLRM in underground mines, as well as in roadway layout and support.

Keywords： soft−hard composite layered rock mass     double cracks     crack evolution     acoustic emission     digital image    

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Split-order consolidation optimization for online supermarkets: Process analysis and optimization models

Frontiers of Engineering Management   Pages 499-516 doi: 10.1007/s42524-022-0221-5

Abstract: Then, a time–space network optimization model is built, and its corresponding solution algorithm is presented

Keywords： online supermarkets     split-order consolidation     time–space network     genetic algorithm    

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Title Author Date Type Operation

The V－BLAST Detection for MIMO MC－CDMA System

Yang Jie,Feng Guangzeng

Journal Article

Efficient detection methods for amplify-and-forward relay-aided device-to-device systems with full-rate space-timeblock code

Kang-li ZHANG, Cong ZHANG, Fang-lin GU, Jian WANG

Journal Article

Designing Space-time Trellis Codes in Flat Fast Fading Channels With Large Number of Antennas

Geng Jia,Cao Xiuying,Bi Guangguo

Journal Article

Uncoupled state space solution to layered poroelastic medium with anisotropic permeability and compressible

Zhiyong AI, Wenze ZENG, Yichong CHENG, Chao WU

Journal Article

FULL TIME-SPACE GOVERNANCE STRATEGY AND TECHNOLOGY FOR CROPLAND NON-POINT POLLUTION CONTROL IN CHINA

Journal Article

A time−space porosity computational model for concrete under sulfate attack

Journal Article

Aneffective approach for low-complexity maximumlikelihood based automatic modulation classification of STBC-MIMOsystems

Maqsood H. SHAH, Xiao-yu DANG

Journal Article

Simulation and Evaluation of Real-Time and Intelligent Space-Based Information Service System of China

Jiang Hao, Li Deren, Shen Xin, Wu Jing

Journal Article

Stability analysis of layered slopes in unsaturated soils

Guangyu DAI; Fei ZHANG; Yuke WANG

Journal Article

Traffic services for vehicles: the process from receiving raw probe data to space-time diagrams and the

Markus AUER, Hubert REHBORN, Sven-Eric MOLZAHN, Micha KOLLER

Journal Article

Research on the Development Strategy of Real-time and Intelligent Space-Based Information Service System

Li Deren , Shen Xin

Journal Article

Integrating space and time: a case for phenological context in grazing studies and management

Dawn M. BROWNING, Sheri SPIEGAL, Richard E. ESTELL, Andres F. CIBILS, Raul H. PEINETTI

Journal Article

Quantification of seepage in a multi-layered disconnected river-aquifer system

Jiang LI, Haizhu HU, Xiaomin MAO, Yi LIU

Journal Article

Crack evolution of soft–hard composite layered rock-like specimens with two fissures under uniaxial compression

Journal Article

Split-order consolidation optimization for online supermarkets: Process analysis and optimization models

Journal Article