The Experts below are selected from a list of 9897 Experts worldwide ranked by ideXlab platform
N Y Shaparev - One of the best experts on this subject based on the ideXlab platform.
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Transfer of resonance radiation in an expanding sphere
Journal of Physics B: Atomic Molecular and Optical Physics, 2011Co-Authors: N I Kosarev, N Y ShaparevAbstract:Imprisonment of resonant radiation in an expanding sphere on the basis of the numerical solution of the Rate Balance Equation for excited atoms and the transfer resonance radiation Equation is investigated. Calculations of the escape factor for sphere at Doppler form of absorption and scattering profiles are executed. The effect of spectral shift of the absorption (emission) profile relative to the stationary one due to expansion of the medium is taken into account for the case when differential motion is described by velocity that varies linearly with the radius. The behaviour of the escape factor for the sphere is compared with the Sobolev theory. The numerical date for time dependence of intensity of afterglow and contour of the spectral line of leaving outside resonance radiation and spatial distribution of the excited atomic concentration are submitted as well.
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Imprisonment dynamics of resonance radiation in gases
Journal of Physics B: Atomic Molecular and Optical Physics, 2011Co-Authors: N I Kosarev, N Y ShaparevAbstract:Imprisonment of resonant radiation in gases on the basis of the numerical solution of the Rate Balance Equation for the excited atoms and the transfer resonant radiation Equation is investigated. Calculations of the escape factor for the slab, cylinder and sphere at Doppler and Lorentz forms of absorption and scattering profiles are executed. Calculation results of the escape factor for the cylinder and slab are compared with Holsten's asymptotical solutions. The numerical data for time dependence of a spectrum, the intensity of resonant radiation and the spatial distribution of the excited atomic concentration in a regime of afterglow are also considered.
N I Kosarev - One of the best experts on this subject based on the ideXlab platform.
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Transfer of resonance radiation in an expanding sphere
Journal of Physics B: Atomic Molecular and Optical Physics, 2011Co-Authors: N I Kosarev, N Y ShaparevAbstract:Imprisonment of resonant radiation in an expanding sphere on the basis of the numerical solution of the Rate Balance Equation for excited atoms and the transfer resonance radiation Equation is investigated. Calculations of the escape factor for sphere at Doppler form of absorption and scattering profiles are executed. The effect of spectral shift of the absorption (emission) profile relative to the stationary one due to expansion of the medium is taken into account for the case when differential motion is described by velocity that varies linearly with the radius. The behaviour of the escape factor for the sphere is compared with the Sobolev theory. The numerical date for time dependence of intensity of afterglow and contour of the spectral line of leaving outside resonance radiation and spatial distribution of the excited atomic concentration are submitted as well.
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Imprisonment dynamics of resonance radiation in gases
Journal of Physics B: Atomic Molecular and Optical Physics, 2011Co-Authors: N I Kosarev, N Y ShaparevAbstract:Imprisonment of resonant radiation in gases on the basis of the numerical solution of the Rate Balance Equation for the excited atoms and the transfer resonant radiation Equation is investigated. Calculations of the escape factor for the slab, cylinder and sphere at Doppler and Lorentz forms of absorption and scattering profiles are executed. Calculation results of the escape factor for the cylinder and slab are compared with Holsten's asymptotical solutions. The numerical data for time dependence of a spectrum, the intensity of resonant radiation and the spatial distribution of the excited atomic concentration in a regime of afterglow are also considered.
El Houssine Bouyakhf - One of the best experts on this subject based on the ideXlab platform.
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An end-to-end QoS framework for IEEE 802.16 and ad-hoc integRated networks
2009Co-Authors: Rachid El-azouzi, Essaid Sabir, S. K. Samanta, Ralph El-khoury, El Houssine BouyakhfAbstract:Current mobile users are often equipped with several network interfaces, which may be of different access technologies. Each access technology has specific characteristics in terms of coverage area and technical characteristics (band-width, QoS, etc.) and provides diverse commercial opportunities for the operators. It seems likely that these various technologies have to coexist and, from then, solutions of integration and interoperability will be necessary to deal with the technological diversity. We consider in this paper the WiMAX and ad-hoc integRated networks. A user who needs to establish a high reliable service prefers to use WiMAX network and another who needs to transmit Best Effort traffic with high Rate but delay tolerant prefers to connect ad-hoc network that is assumed to have access to Internet. We aim through this combination to locally extend the coverage of WiMAX cell and to study the stability of involved nodes, in particular, gateway nodes. Under stability condition , our main result is characterization of the end-to-end throughput and delay using the Rate Balance Equation and a G/G/1 queueing model. Through numerical results, we demonstRate the utility and efficiency of our approach.
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Mobility Conference - An end-to-end QoS framework for IEEE 802.16 and ad-hoc integRated networks
Proceedings of the 6th International Conference on Mobile Technology Application & Systems - Mobility '09, 2009Co-Authors: Rachid El-azouzi, Essaid Sabir, S. K. Samanta, Ralph El-khoury, El Houssine BouyakhfAbstract:Current mobile users are often equipped with several network interfaces, which may be of different access technologies. Each access technology has specific characteristics in terms of coverage area and technical characteristics (bandwidth, QoS, etc.) and provides diverse commercial opportunities for the operators. It seems likely that these various technologies have to coexist and, from then, solutions of integration and interoperability will be necessary to deal with the technological diversity. We consider in this paper the WiMAX and ad-hoc integRated networks. A user who needs to establish a high reliable service prefers to use WiMAX network and another who needs to transmit Best Effort traffic with high Rate but delay tolerant prefers to connect ad-hoc network that is assumed to have access to Internet. We aim through this combination to locally extend the coverage of WiMAX cell and to study the stability of involved nodes, in particular, gateway nodes. Under stability condition, our main result is characterization of the end-to-end throughput and delay using the Rate Balance Equation and a G/G/1 queueing model. Through numerical results, we demonstRate the utility and efficiency of our approach.
Rachid El-azouzi - One of the best experts on this subject based on the ideXlab platform.
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An end-to-end QoS framework for IEEE 802.16 and ad-hoc integRated networks
2009Co-Authors: Rachid El-azouzi, Essaid Sabir, S. K. Samanta, Ralph El-khoury, El Houssine BouyakhfAbstract:Current mobile users are often equipped with several network interfaces, which may be of different access technologies. Each access technology has specific characteristics in terms of coverage area and technical characteristics (band-width, QoS, etc.) and provides diverse commercial opportunities for the operators. It seems likely that these various technologies have to coexist and, from then, solutions of integration and interoperability will be necessary to deal with the technological diversity. We consider in this paper the WiMAX and ad-hoc integRated networks. A user who needs to establish a high reliable service prefers to use WiMAX network and another who needs to transmit Best Effort traffic with high Rate but delay tolerant prefers to connect ad-hoc network that is assumed to have access to Internet. We aim through this combination to locally extend the coverage of WiMAX cell and to study the stability of involved nodes, in particular, gateway nodes. Under stability condition , our main result is characterization of the end-to-end throughput and delay using the Rate Balance Equation and a G/G/1 queueing model. Through numerical results, we demonstRate the utility and efficiency of our approach.
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Mobility Conference - An end-to-end QoS framework for IEEE 802.16 and ad-hoc integRated networks
Proceedings of the 6th International Conference on Mobile Technology Application & Systems - Mobility '09, 2009Co-Authors: Rachid El-azouzi, Essaid Sabir, S. K. Samanta, Ralph El-khoury, El Houssine BouyakhfAbstract:Current mobile users are often equipped with several network interfaces, which may be of different access technologies. Each access technology has specific characteristics in terms of coverage area and technical characteristics (bandwidth, QoS, etc.) and provides diverse commercial opportunities for the operators. It seems likely that these various technologies have to coexist and, from then, solutions of integration and interoperability will be necessary to deal with the technological diversity. We consider in this paper the WiMAX and ad-hoc integRated networks. A user who needs to establish a high reliable service prefers to use WiMAX network and another who needs to transmit Best Effort traffic with high Rate but delay tolerant prefers to connect ad-hoc network that is assumed to have access to Internet. We aim through this combination to locally extend the coverage of WiMAX cell and to study the stability of involved nodes, in particular, gateway nodes. Under stability condition, our main result is characterization of the end-to-end throughput and delay using the Rate Balance Equation and a G/G/1 queueing model. Through numerical results, we demonstRate the utility and efficiency of our approach.
Essaid Sabir - One of the best experts on this subject based on the ideXlab platform.
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An end-to-end QoS framework for IEEE 802.16 and ad-hoc integRated networks
2009Co-Authors: Rachid El-azouzi, Essaid Sabir, S. K. Samanta, Ralph El-khoury, El Houssine BouyakhfAbstract:Current mobile users are often equipped with several network interfaces, which may be of different access technologies. Each access technology has specific characteristics in terms of coverage area and technical characteristics (band-width, QoS, etc.) and provides diverse commercial opportunities for the operators. It seems likely that these various technologies have to coexist and, from then, solutions of integration and interoperability will be necessary to deal with the technological diversity. We consider in this paper the WiMAX and ad-hoc integRated networks. A user who needs to establish a high reliable service prefers to use WiMAX network and another who needs to transmit Best Effort traffic with high Rate but delay tolerant prefers to connect ad-hoc network that is assumed to have access to Internet. We aim through this combination to locally extend the coverage of WiMAX cell and to study the stability of involved nodes, in particular, gateway nodes. Under stability condition , our main result is characterization of the end-to-end throughput and delay using the Rate Balance Equation and a G/G/1 queueing model. Through numerical results, we demonstRate the utility and efficiency of our approach.
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Mobility Conference - An end-to-end QoS framework for IEEE 802.16 and ad-hoc integRated networks
Proceedings of the 6th International Conference on Mobile Technology Application & Systems - Mobility '09, 2009Co-Authors: Rachid El-azouzi, Essaid Sabir, S. K. Samanta, Ralph El-khoury, El Houssine BouyakhfAbstract:Current mobile users are often equipped with several network interfaces, which may be of different access technologies. Each access technology has specific characteristics in terms of coverage area and technical characteristics (bandwidth, QoS, etc.) and provides diverse commercial opportunities for the operators. It seems likely that these various technologies have to coexist and, from then, solutions of integration and interoperability will be necessary to deal with the technological diversity. We consider in this paper the WiMAX and ad-hoc integRated networks. A user who needs to establish a high reliable service prefers to use WiMAX network and another who needs to transmit Best Effort traffic with high Rate but delay tolerant prefers to connect ad-hoc network that is assumed to have access to Internet. We aim through this combination to locally extend the coverage of WiMAX cell and to study the stability of involved nodes, in particular, gateway nodes. Under stability condition, our main result is characterization of the end-to-end throughput and delay using the Rate Balance Equation and a G/G/1 queueing model. Through numerical results, we demonstRate the utility and efficiency of our approach.
