Prediction of Attenuation by Rain

Crane, Robert K.

doi:10.1109/tcom.1980.1094844

Cited by 418 publications

(203 citation statements)

References 24 publications

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“…In particular, in [72], they introduced two algorithms (XL-OSPF and P-WARP) being extensions to Open Shortest Path First (OSPF) taking into consideration changing weather conditions. Both algorithms utilize formulas (1) and (2) from [36] defining the dependency of signal attenuation on the rain rate:…”

Section: Reliability Of Wireless Mesh Networkmentioning

confidence: 99%

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Future research directions in design of reliable communication systems

et al. 2015

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In this position paper on reliable networks, we discuss new trends in the design of reliable communication systems. We focus on a wide range of research directions including protection against software failures as well as failures of communication systems equipment. In particular, we outline future research trends in software failure mitigation, reliability of wireless communications, robust optimization and network design, multilevel and multirealm network resilience, multiple criteria routing approaches in multilayer networks, resilience options of the fixed IP backbone network in the interplay with the optical layer survivability, reliability of cloud computing networks, and

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Section: Reliability Of Wireless Mesh Networkmentioning

confidence: 99%

“…-A is the signal attenuation in dB, -D is the length of the path over which the rain is observed, -R p is the rain rate in mm/h, -α, β are the numerical constants taken from [36],…”

Section: Reliability Of Wireless Mesh Networkmentioning

confidence: 99%

Future research directions in design of reliable communication systems

et al. 2015

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“…Both algorithms utilize formulas (1)-(2), originally introduced in [31], to define the signal attenuation level depending on the rain rate. …”

Section: Related Workmentioning

confidence: 99%

“…-A is the attenuation of signal in dB, -D is the length of the section of the path (in km) over which the rain is encountered, -R p is the rate of rain in mm/h, -α, β are the specific constants taken from [31],…”

Section: Related Workmentioning

confidence: 99%

A new approach to design of weather disruption-tolerant wireless mesh networks

Rak

2015

Telecommun Syst

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Wireless Mesh Networks, offering transmission rates of 1-10 Gb/s per a millimeter-wave link (utilizing the 71-86 GHz band) seem to be a promising alternative to fiber optic backbone metropolitan area networks because of significantly lower costs of deployment and maintenance. However, despite providing high transmission rates in good weather conditions, high-frequency wireless links are very susceptible to weather disruptions. In particular, heavy rain storms may lead to remarkable signal attenuation. In this paper, we introduce a new transmission technique for wireless mesh networks to mitigate the negative effects of link quality degradation due to rain storms. In particular, our method is the first one to use information on forecasted attenuation of links based on radar measurements to perform in advance the periodic updates of a network topology. Our approach is easily implementable in practice, since functionality of dynamic antenna alignment is currently offered by a number of equipment vendors. Other contributions of the paper include presentation of the ILP model of weatherresistant links formation problem followed by analysis of its computational complexity. Results of simulations, performed for three real scenarios of rain storms, show that our approach is very efficient in reducing the level of signal attenuation.

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“…Simpler methods for practical applications apply a reduction or adjustment coefficient to the actual path length to obtain an effective path length over which the rain intensity is assumed to be constant [21], [22], [23]. This concept is presently used in the rain attenuation prediction method recommended by the ITU-R [24].…”

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confidence: 99%

Modified rain attenuation prediction method considering the effect of wind direction

Mello

Pontes

Fagundes

et al. 2014

J. Microw. Optoelectron. Electromagn. Appl.

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Abstract-The method currently recommended by the ITU-R for the prediction of rain attenuation in terrestrial line-of sight links considers an equivalent path length over which the rain intensity is assumed to be constant. In other methods, the spatial and temporal variations of the rainfall rate along the path are characterized by an effective rainfall rate that is dependent on the actual path length. Based on experimental measurements, this paper presents a modified effective rainfall rate method that includes the prevailing wind direction during rainy conditions as an additional parameter for the prediction of rain attenuation. The wind direction, which can be obtained from meteorological databases with global coverage, is shown to significantly improve prediction accuracy.

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Prediction of Attenuation by Rain

Cited by 418 publications

References 24 publications

Future research directions in design of reliable communication systems

Future research directions in design of reliable communication systems

A new approach to design of weather disruption-tolerant wireless mesh networks

Modified rain attenuation prediction method considering the effect of wind direction

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