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9th European Conference on Antennas and Propagation EuCAP

作者： Xia, Bing Lai, Zhihua Villemaud, Guillaume Zhang, Jie Univ Sheffield Commun Grp Sheffield S1 3JD S Yorkshire England Ranplan Wireless Network Design Ltd Innovat Ctr Sheffield S1 4DP S Yorkshire England Univ Lyon CITI Lab INSA F-69621 Villeurbanne France

ISBN: (纸本)9788890701856

This paper proposes a novel model for predicting the outdoor to indoor radio signal coverage. This model is based on a joint ray launching algorithm that adapts different resolutions for outdoor and indoor simulations. The performance of the joint ray launching method is evaluated by a measurement at 3.5 GHz frequency. This model appears to be efficient for a scenario with mixed resolutions, in terms of both accuracy and computational cost.

关键词： propagation outdoor to indoor coverage prediction

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Network Planning Strategy for Frequency Re-farming

Network Planning Strategy for Frequency Re-farming

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IEEE 16th International Conference on Communication Technology (ICCT)

作者： Shi Jun-xiao Zhao Zhi-jin Zhu Dong-zhao Hangzhou Dianzi Univ Hangzhou 310018 Peoples R China Huaxin Consulting Co Ltd Hangzhou 310014 Zhejiang Peoples R China

ISBN: (纸本)9781467370059

The necessity of frequency re-farming from the aspects of spectrum demand, frequency efficiency and economic benefit is analyzed. The strategies of frequency re-farming are proposed to demonstrate the feasibility of the system. Then Monte Carlo simulation is used to calculate the coverage prediction on LTE network in rural areas. Simulation results show that after frequency re-farming, the 800M LTE system has improvement in network coverage compared with 2.1 G LTE-FDD system without regard to capacity and switch performance.

关键词： Frequency re-farming economic benefit Monte Carlo simulation coverage prediction

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Network Planning Strategy for Frequency Re-farming

Network Planning Strategy for Frequency Re-farming

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2015 IEEE 16th International Conference on Communication Technology(ICCT 2015)

作者： Shi Jun-xiao Zhao Zhi-jin Zhu Dong-zhao Hangzhou Dianzi University Huaxin Consulting Co. Ltd.

The necessity of frequency re-farming from the aspects of spectrum demand, frequency efficiency and economic benefit is analyzed. The strategies of frequency re-farming are proposed to demonstrate the feasibility of the system. Then Monte Carlo simulation is used to calculate the coverage prediction on LTE network in rural areas. Simulat ion results show that after frequency re-farming, the 800 M LTE system has improvement in network coverage compared with 2.1G LTE-FDD system without regard to capacity and switch performance.

关键词： Frequency re-farming economic benefit Monte Carlo simulation coverage prediction

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M2M Facilitated Wireless Network coverage Management and Real-time Monitoring

M2M Facilitated Wireless Network Coverage Management and Rea...

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14th IEEE/IFIP Network Operations and Management Symposium (NOMS)

作者： Zhang, Jizheng Yang, Lin Ma, Qian Sun, Wei Zhao, Wei IBM China Res Ctr Beijing Peoples R China

ISBN: (纸本)9781479909131

A main challenge to wireless network performance management is how to estimate and monitor the wireless network coverage. In this paper a novel Machine to Machine (M2M) facilitated wireless network coverage prediction and real-time monitoring method is proposed. This method uses the telematics devices in connected vehicles to measure the wireless network performance with an auto-adaptive scheduling and reporting mechanism to minimize the impact to the performance. Then the wireless network coverage prediction model is set up and adjusted real-timely with the M2M measurements using improved algorithms to get a higher accuracy. The verification and estimation of this method based on simulations are presented, result shows that this M2M facilitated method is feasible and has obvious advantage in accuracy compared with traditional approach.

关键词： Wireless Network Management coverage prediction Real-time monitoring Spectrum Propagation Model

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Characterization of coverage of Signals in 700 MHz Band in Indoor Environments

Characterization of Coverage of Signals in 700 MHz Band in I...

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SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference

作者： Jefferson Costa e Silva Niedson Almeida Lemos Maria do Carmo de L. M. Frazao Alexandre F. dos Santos Federal Institute of Paraiba: Post-graduate Programm in Electrical Engineering IFPB

ISBN: (纸本)9781467394932

This paper aims to establish the characterization of coverage of signals in 700 MHz band in indoor environments. This band was chosen because its allocation to be used by the Long Term Evolution (LTE) broadband communication systems in Brazil. The measurements procedure to characterize the behavior of the signal coverage were carried out by the arithmetic media of nine measured points, calculated in an area of 1 m~2, at regularly spaced intervals so as to ensure a smaller influence of the fast fading phenomenon. The simulated results were obtained using the commercial program Winprop, based on the Ray-Tracing method. Furthermore, simulated results are also obtained using a simplified model, for which virtual transmitters are positioned at the beginning of each non line of sight corridor. A good agreement is observed between measured and simulated results, which instigates the use of the proposed simplified model and measurement procedure. It was shown that is not required an extensive measurement and simulation along all the environment extension in a situation without line of sight to predict the received power.

关键词： Indoor propagation coverage prediction Ray-tracing Measurements

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Statistical Characterization of Medium Wave Spatial Variability Due to Urban Factors

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IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION 2011年第9期59卷 3498-3500页

作者： Gil, Unai Pena, Ivan Guerra, David de la Vega, David Angueira, Pablo Luis Ordiales, Juan Univ Basque Country UPV EHU Elect & Telecommun Dept Bilbao Bizkaia Spain

The recently developed digital radio systems for the medium wave(MW) band require accurate field strength prediction methods for coverage calculi. Traditional prediction methods do not consider the influence of urban factors on MW ground-wave propagation. This influence causes signal strength time and spatial variability which in turn, provoke drop-outs below reception threshold values. In this letter the ground-wave spatial variability is statistically analyzed in urban environments by means of empirical data from four extensive field trials. The experiments were carried out in different urban environments and at different frequencies of the MW band. Prior to the analysis, long-term and short-term components of the signal were separated by means of the generalized Lee method (GLM). The results show the attenuation caused by different urban factors. These attenuation values should be added to the signal strength predicted median values in order to ensure correct reception.

关键词： coverage prediction medium wave (MW) propagation models signal variability urban environments

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An Enhanced Inversion Propagation Model using Simple Genetic Algorithm for A Single Cell coverage prediction

An Enhanced Inversion Propagation Model using Simple Genetic...

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3rd International Conference on Wireless Communications, Networking and Mobile Computing (WiCOM 2007)

作者： Wang, Yuhao Zhou, Huilin Jiang, Hong Nanchang Univ Sch Informat Engn Nanchang Jiangxi Peoples R China

ISBN: (纸本)9781424413119

In this paper an enhanced inversion propagation model for a single cell coverage prediction is presented. We have simplified a complicated propagation problem to a system of large scale ill-condition equations by inversion method, which can be solved by simple genetic algorithm (GA) appropriately The effectiveness of the proposed method has been demonstrated using experiments under various radio environments in Guang Dong, China. It was shown that the prediction results were approximately consistent with independent checking samples.

关键词： propagation model genetic algorithm inversion method coverage prediction

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An Enhanced Inversion Propagation Model using Simple Genetic Algorithm for A Single Cell coverage prediction

An Enhanced Inversion Propagation Model using Simple Genetic...

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第三届IEEE无线通讯、网络技术暨移动计算国际会议

作者： Yuhao Wang Huilin Zhou Hong Jiang School of Information Engineering Nanchang University China

In this paper, an enhanced inversion propagation model for a single cell coverage prediction is presented. We have *** a complicated propagation problem to a system of large scale ill-condition equations by inversion method, which can be solved by simple genetic algorithm (GA) appropriately. The effectiveness of the proposed method has been demonstrated using experiments under various radio environments in Guang Dong, China. It was shown that the prediction results were approximately consistent with independent checking samples.

关键词： propagation model genetic algorithm inversion method coverage prediction

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A novel measurement-based algorithm for coverage prediction of urban and suburban cells in wireless networks

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IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION 2006年第11期54卷 3138-3142页

作者： Xu, J. S. Wang, Yuhao Wang, Zhe Wuhan Univ Mobile Lab Sch Elect Informat Wuhan 430079 Peoples R China

A novel approach is proposed to predict the coverage of urban and suburban cells in wireless networks. By this approach, the propagation loss between any two points along the virtual propagation path from the base-station to the mobile-station within a predicted area can be deduced in an average sense with reasonable accuracy, based on an a priori series of measurements, finite and limited in extent, taken along the periphery of this area. The effectiveness of the proposed method has been demonstrated using experiments under various radio environments in Guang Dong, China. It was shown that the prediction results were approximately consistent with independent checking samples.

关键词： computerized tomography coverage prediction inverse problem prediction model wireless networks

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coverage prediction of new elements of systems beyond 3G: The IEEE 802.16 system as a case study

Coverage prediction of new elements of systems beyond 3G: Th...

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58th IEEE Vehicular Technology Conference (VTC 2003)

作者： Plitsis, G Univ Aachen Commun Networks D-52074 Aachen Germany

ISBN: (纸本)0780379543

Calculations on the expected coverage of millimeter-wave propagation in suburban areas of systems beyond 3G are presented. Considering that these systems are envisioned to have a minimum aggregate cell payload of 100 Mbps, the cell ranges are estimated. These calculations are performed with the use of different coverage prediction methods and propagation models. The results of these calculations are compared and the best model for each case is defined. Specific emphasis is given to the WirelessMAN(TM) [4] (IEEE 802.16), the under standardization American air interface for broadband wireless access.

关键词： coverage prediction propagation models systems beyond 3G IEEE 802.16 WirelessMAN WMAN

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