Microwave path-loss modeling in urban line-of-sight environments

Masui, Hironari; Kobayashi, T.; Akaike, M.

doi:10.1109/jsac.2002.801215

Cited by 49 publications

(51 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Kwashie A. Anang, Predrag B. Rapajic, and Ruiheng Wu T information capacity performance of cellular wireless systems [7]. Therefore, the main contribution of this paper is as follows:…”

Section: Impact Of Sectorization/vehicular Traffic On Minimum Cell Simentioning

confidence: 99%

“…The modified breakpoint distance proposed by Masui et al [7], is incorporated into the system model, (that is the path loss model), for the study of impact of vehicular traffic on the information capacity performance of a sectorized cellular wireless system. The modified breakpoint distance g m is given by [7], as…”

Section: ) Analyses-modified Breakpoint Distancementioning

confidence: 99%

“…Now, h depends on the average height of traffic on the road, which is the average height of vehicles and pedestrians height on the road [7]. For light vehicular traffic the value of h is between 0.23 and 0.74 m, and for heavy vehicular traffic, it is between 1.29 and 1.64 m [19].…”

Section: ) Analyses-modified Breakpoint Distancementioning

confidence: 99%

See 2 more Smart Citations

Impact of Sectorization/Vehicular Traffic on Minimum Cell Size for Information Capacity Increase in Cellular Systems

Anang¹,

Rapajic²,

Wu³

2013

ELS

View full text Add to dashboard Cite

Abstract-In this paper results of mathematical analysis supported by simulation are used to study the impact of sectorization/vehicular traffic on the theoretical limit for cell size radius reduction in cellular wireless communication systems. Information capacity approach is used for the analysis. Attention is given to the active co-channel interfering cells. Because at carrier frequencies greater than 2 GHz, co-channel interfering cells beyond the first tier becomes dominant as the cell size radius reduces. Results show that for sectorized cellular wireless communication system operating at carrier frequency greater than 2 GHz and having smaller cell size radius in a traffic environment the second tier co-channel interference still becomes active. This causes a decrease in the information capacity of the cellular wireless system. For example for a heavy vehicular traffic environment, at a carrier frequency f C = 15.75 GHz, basic path loss exponent α = 2 and cell radius R = 100, 300 and 500 m for a six sector cellular the decrease in information capacity, because of interference from the second tier was 5.47, 3.36 and 2.78%.

show abstract

“…Kwashie A. Anang, Predrag B. Rapajic, and Ruiheng Wu T information capacity performance of cellular wireless systems [7]. Therefore, the main contribution of this paper is as follows:…”

Section: Impact Of Sectorization/vehicular Traffic On Minimum Cell Simentioning

confidence: 99%

Section: ) Analyses-modified Breakpoint Distancementioning

confidence: 99%

See 1 more Smart Citation

Impact of Sectorization/Vehicular Traffic on Minimum Cell Size for Information Capacity Increase in Cellular Systems

Anang¹,

Rapajic²,

Wu³

2013

ELS

View full text Add to dashboard Cite

show abstract

“…Aware of the importance in studying the low-height communication-link propagation-characteristics, research has produced several empirical models [1]- [9]. Single-slope [1]- [3], [5], [6], [9], [10], two-slope [8], [11], and even three-slope [4] models have been proposed, which consider heights compatible with the lowheight channel of this study. In [12], measurements were conducted, at a very near to the ground level (receiver height at 3 to 28cm), at 880MHz, in an urban environment.…”

Section: Introductionmentioning

confidence: 99%

Measurement and modelling of the propagation channel between low-height terminals

Κωνσταντίνου

Kang

Brown

et al. 2011

IET Microw. Antennas Propag.

View full text Add to dashboard Cite

The evaluation of communication systems with low-height terminals requires path loss models that are applicable to low-height links. For the terminology low-height, the range 0.5 (mobile-) to 3m (fixed-node) above ground is considered. Herein, empirical non-time-dispersive propagation models for relaying systems with low-height terminals are proposed. The models consist of line-of-sight and non-line-of-sight branches. Single-and two-slope modelling approaches were examined. The models take into account the effect of frequency, transmitter and receiver height, and environment. They are complemented by shadowing and fast-fading distribution and correlation statistics. The performance of the models in producing accurate estimations is evaluated by comparison with sets of independent data.

show abstract

“…Jiang et al [6] proposed a simple analytical path loss model using rectangular shaped blocks with equal height. Additionally, Masui et al [7] proposed upper and lower bounds LOS path loss models at frequencies of 3.35, 8.45, and 15.75 GHz. In forest environments, Durgin et al presented measurement and empirical models for path loss in and around homes and trees at a frequency of 5.85 GHz [8].…”

Section: Introductionmentioning

confidence: 99%

Path Loss Prediction for Low-Rise Buildings With Image Classification on 2-D Aerial Photographs

Phaiboon

Phokharatkul²

2009

PIER

View full text Add to dashboard Cite

Abstract-This paper presents a radio wave propagation prediction method for low-rise buildings using 2-D aerial images taken from the actual areas. The prediction procedure was done in three steps. Firstly, the images were classified in order to identify the objects by Color Temperature Properties with Maximum Likelihood Algorithm (CTP MLA). The objects in the images consist of buildings, trees, roads, water and plain. These objects influence wave propagation highly. The MLA classification is a common supervised image segmentation technique in remote sensing domain. However it still needs human editing in case of classification errors. Secondly, the appropriate path loss models were selected to predict path loss. The original Xia path loss model was modified to include the effects of airy buildings and vegetation around the buildings. Finally, preliminary tests provide a better solution compared with measured path losses with the root mean square error (RMSE) and maximum relative error (MRE) of 3.47 and 0.31, respectively. Therefore, the positions for micro-cell base stations could be designed on a 2-D aerial map.

show abstract

Microwave path-loss modeling in urban line-of-sight environments

Cited by 49 publications

References 7 publications

Impact of Sectorization/Vehicular Traffic on Minimum Cell Size for Information Capacity Increase in Cellular Systems

Impact of Sectorization/Vehicular Traffic on Minimum Cell Size for Information Capacity Increase in Cellular Systems

Measurement and modelling of the propagation channel between low-height terminals

Path Loss Prediction for Low-Rise Buildings With Image Classification on 2-D Aerial Photographs

Contact Info

Product

Resources

About