Improved path-loss model for predicting TV coverage for secondary access

Фарук, Насир; Ayeni, Adeseko A.; Adediran, Yinusa A.; Surajudeen-Bakinde, N. T.

doi:10.1504/ijwmc.2014.065607

Cited by 16 publications

(8 citation statements)

References 21 publications

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“…The selected propagation models are the Hata [18], COST 231 [19], Egli [20], ECC-33 [21], Davidson [22], and ILORIN [5]. These models were chosen based on the fact that the VHF and UHF operating frequencies fall within the frequency validity range of the selected models.…”

Section: Path Loss Models Consideredmentioning

confidence: 99%

“…Recently, a number of experimental campaigns have been documented on the performance of existing path loss models in the VHF and UHF bands in specific terrains over diverse climates [3][4][5]. Most of these works are based on measurements conducted in selected locations and models, which are only suitable and applicable for the particular region of interest.…”

Section: Introductionmentioning

confidence: 99%

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Clutter and terrain effects on path loss in the VHF/UHF bands

Фарук¹,

Bello²,

Oloyede³

et al. 2017

IET Microwaves, Antennas & Propagation

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Path loss models are essential in the planning of wireless networks. However, the peculiar ambient characteristics of geographical locations necessitate a wide range of these models to take into consideration the different terrain dielectric, scattering irregularities, and clutter. This study investigates the effects of terrain and clutter on frequency‐dependent path loss models in the very high frequency (VHF) and ultra high frequency (UHF) bands using multi‐transmitter scenarios. Seven transmitters and 15 measurement routes were covered using an Agilent N9342C spectrum analyser. The measured results show that the models' prediction errors (PEs) follow the terrain profile and also that the clutter effects are noticeable along each route with varying degrees of impact. Near constant standard deviation errors (SDEs) were observed across all the models for the specific routes as well as a strong dependency on the terrain profile and clutters along the measurement routes. The UHF and VHF bands have average SDEs of 10.5 and 7.5 dB, respectively. A three‐dimensional digital elevation model (DEM) showing the terrain and PE was also developed. Contour lines were extracted from the advanced spaceborne thermal emission radiometer and global DEM data sets. Visualisation of the terrain profile was achieved in the ArcScene software environment.

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Section: Path Loss Models Consideredmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Clutter and terrain effects on path loss in the VHF/UHF bands

Фарук¹,

Bello²,

Oloyede³

et al. 2017

IET Microwaves, Antennas & Propagation

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“…For instance, Nasir et al in [3] presented an optimized path loss model for predicting TV coverage for secondary access. In the work, statistical analysis was employed to determine the model with least errors and further optimization work was carried out on Hata -Davidson's model for better fit result.…”

Section: Related Workmentioning

confidence: 99%

“…The empirical formulation for this model relies on the combined effects of free space and terrain induced path loss [3,7,13] …”

Section: G Ccir Modelmentioning

confidence: 99%

Performance analysis of empirical path loss models in VHF & UHF bands

Jimoh

Surajudeen-Bakinde

Фарук

et al. 2015

2015 6th International Conference on Information and Communication Systems (ICICS)

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In this work, signal path loss prediction from nine different empirical path loss models were statistically compared with those measured from four television transmitters along five routes that span through urban and rural environments of Osun State, Nigeria. In this respect, results obtained show that both Hata and Davidson prediction models provide best fit prediction consistently along the five measurement routes with 90% to 98% prediction accuracy, Ilorin, CCIR, Cost 231, Ericsson 9999 and ECC-33 show prediction accuracy within the range of 65% to 80% while SUI and Okumura models offer prediction accuracy within the range of 15% to 21%. Generally the results show that Davidson and Hata models have better results in all the five routes examined. SUI and Okumura models show the least performance results.

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“…Therefore, we have used Longley-Rice Irregular Terrain model(ITM) to compare with the measured path loss data collected at different places in India. In [10] Field strength measurements were conducted along six routes that spanned urban, suburban and rural areas of Kwara State, Nigeria. Measurement results were then compared with pathloss prediction of eight widely used empirical models.…”

Section: Introductionmentioning

confidence: 99%

A Novel Lmmse Based Optimized Perez-Vega Zamanillo Propagation Path Loss Model in Uhf/VHF Bands for India

Bolli¹,

Khan²

2015

PIER B

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Cognitive radio is the enabling technology for license-exempt access to the TV White Spaces (TVWS). There is ever increasing demand of users in the broadcasting and communication services. Large portions of unused spectrum in the UHF/VHF bands exist in India which can be used on geographical basis. This paper describes a study on path loss variation in UHF/VHF bands in India. The aim of this study is to develop and optimize a path loss model based on Linear minimum mean square error estimation (LMMSE) for India. We propose the LMMSE based Optimized Perez-Vega Zamanillo propagation path loss model. The measured path loss values, collected across India, are compared with proposed Optimized Perez-Vega Zamanillo path loss model and other existing path loss models. It is found that Optimized Perez-Vega Zamanillo propagation path loss model has the least root mean square Error (RMSE) of 13.98 dB. Other existing path loss models have root mean square Error(RMSE) value greater than 24 dB. Therefore, Optimized Perez-Vega Zamanillo propagation path loss model is best suited for predicting coverage area, interference analysis in India for TVWS.

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Improved path-loss model for predicting TV coverage for secondary access

Cited by 16 publications

References 21 publications

Clutter and terrain effects on path loss in the VHF/UHF bands

Clutter and terrain effects on path loss in the VHF/UHF bands

Performance analysis of empirical path loss models in VHF & UHF bands

A Novel Lmmse Based Optimized Perez-Vega Zamanillo Propagation Path Loss Model in Uhf/VHF Bands for India

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Improved path-loss model for predicting TV coverage for secondary access

Cited by 16 publications

References 21 publications

Clutter and terrain effects on path loss in the VHF/UHF bands

Clutter and terrain effects on path loss in the VHF/UHF bands

Performance analysis of empirical path loss models in VHF &amp; UHF bands

A Novel Lmmse Based Optimized Perez-Vega Zamanillo Propagation Path Loss Model in Uhf/VHF Bands for India

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Performance analysis of empirical path loss models in VHF & UHF bands