The Experts below are selected from a list of 116760 Experts worldwide ranked by ideXlab platform
V W S Wong - One of the best experts on this subject based on the ideXlab platform.
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saturation throughput of ieee 802 11e edca based on mean value analysis
Wireless Communications and Networking Conference, 2006Co-Authors: Yuxia Lin, V W S WongAbstract:The IEEE 802.11-based wireless LANs have been widely deployed for local area high-speed data access. The IEEE 802.11e amendment aims at providing QoS provisioning to support real-time multimedia traffic in WLANs. The enhanced distributed channel access (EDCA) is a QoS extension of the distributed coordination function (DCF) in IEEE 802.11a/b/g. In this paper, we propose an analytical model to evaluate the saturation throughput of the IEEE 802.11e EDCA. Our analytical model is based on the use of mean value analysis. We carry out extensive simulation study to validate the accuracy of the proposed model. Our scheme models accurately the effects of the change of contention window size and AIFS (arbitration inter-Frame Space). Our analytical model is applicable to real-time system tuning and on-line admission control algorithms which require a low computation complexity
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WCNC - Saturation throughput of IEEE 802.11e EDCA based on mean value analysis
IEEE Wireless Communications and Networking Conference 2006. WCNC 2006., 2006Co-Authors: Yuxia Lin, V W S WongAbstract:The IEEE 802.11-based wireless LANs have been widely deployed for local area high-speed data access. The IEEE 802.11e amendment aims at providing QoS provisioning to support real-time multimedia traffic in WLANs. The enhanced distributed channel access (EDCA) is a QoS extension of the distributed coordination function (DCF) in IEEE 802.11a/b/g. In this paper, we propose an analytical model to evaluate the saturation throughput of the IEEE 802.11e EDCA. Our analytical model is based on the use of mean value analysis. We carry out extensive simulation study to validate the accuracy of the proposed model. Our scheme models accurately the effects of the change of contention window size and AIFS (arbitration inter-Frame Space). Our analytical model is applicable to real-time system tuning and on-line admission control algorithms which require a low computation complexity
Yuxia Lin - One of the best experts on this subject based on the ideXlab platform.
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saturation throughput of ieee 802 11e edca based on mean value analysis
Wireless Communications and Networking Conference, 2006Co-Authors: Yuxia Lin, V W S WongAbstract:The IEEE 802.11-based wireless LANs have been widely deployed for local area high-speed data access. The IEEE 802.11e amendment aims at providing QoS provisioning to support real-time multimedia traffic in WLANs. The enhanced distributed channel access (EDCA) is a QoS extension of the distributed coordination function (DCF) in IEEE 802.11a/b/g. In this paper, we propose an analytical model to evaluate the saturation throughput of the IEEE 802.11e EDCA. Our analytical model is based on the use of mean value analysis. We carry out extensive simulation study to validate the accuracy of the proposed model. Our scheme models accurately the effects of the change of contention window size and AIFS (arbitration inter-Frame Space). Our analytical model is applicable to real-time system tuning and on-line admission control algorithms which require a low computation complexity
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WCNC - Saturation throughput of IEEE 802.11e EDCA based on mean value analysis
IEEE Wireless Communications and Networking Conference 2006. WCNC 2006., 2006Co-Authors: Yuxia Lin, V W S WongAbstract:The IEEE 802.11-based wireless LANs have been widely deployed for local area high-speed data access. The IEEE 802.11e amendment aims at providing QoS provisioning to support real-time multimedia traffic in WLANs. The enhanced distributed channel access (EDCA) is a QoS extension of the distributed coordination function (DCF) in IEEE 802.11a/b/g. In this paper, we propose an analytical model to evaluate the saturation throughput of the IEEE 802.11e EDCA. Our analytical model is based on the use of mean value analysis. We carry out extensive simulation study to validate the accuracy of the proposed model. Our scheme models accurately the effects of the change of contention window size and AIFS (arbitration inter-Frame Space). Our analytical model is applicable to real-time system tuning and on-line admission control algorithms which require a low computation complexity
Thom Grace - One of the best experts on this subject based on the ideXlab platform.
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Controlling the movement of an articulated figure using parametric Frame-Space interpolation
Fourth International Conference on Computer-Aided Design and Computer Graphics, 1996Co-Authors: Shang Guo, James Robergé, Thom GraceAbstract:This paper describes parametric Frame Space interpolation, a new technique for motion control which allows an animator to define a range of movements using a set of reference movements (a Frame Space). Once this Frame Space has been constructed, an animator can specify an envisioned movement in terms of these reference movements or, more precisely, as an interpolation between these reference movements. The result is a high-level motion control mechanism which, while powerful, retains the artistic expressiveness and visual emphasis characteristic of parametric keyframing. Then we will develop simple human locomotion model that illustrates the use of this parametric Frame Space interpolation technique. This locomotion model blends a range of walking and running movements to form a unified motion Framework.© (1996) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
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Controlling Movement Using Parametric Frame Space Interpolation
Models and Techniques in Computer Animation, 1993Co-Authors: Shang Guo, James Robergé, Thom GraceAbstract:In this paper, we introduce a technique for controlling movement, parametric Frame Space interpolation, that extends the artistic expressiveness of parametric keyFrame animation to a higher level of movement control. An animator using this technique defines a range of movements, a Frame Space, in terms of a set of reference (key) movements. The animator then generates movements that interpolate between these reference movements by specifying paths within the Frame Space. The resulting animation process can be used as a freestanding animation technique or as a tool for editing movements produced using other animation methods.
Pachamuthu Rajalakshmi - One of the best experts on this subject based on the ideXlab platform.
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Saturated Throughput Analysis of IEEE 802.11ad EDCA For High Data Rate 5G-IoT Applications
IEEE Transactions on Vehicular Technology, 2019Co-Authors: M. P. R. S. Kiran, Pachamuthu RajalakshmiAbstract:The recently developed IEEE 802.11ad (WiGig) standard offers multi-Gbps connectivity for consumer wireless local area networks and operates in the millimeter wave frequency band (around 60 GHz). It supports two different contention-based channel access mechanisms, namely distributed coordination function, which offers fair service for every station, and the enhanced distributed channel Access (EDCA) for offering service differentiation among the stations. In this paper, we study the throughput performance of the IEEE 802.11ad EDCA mechanism under saturated traffic conditions using both analytical and simulation models. A novel five-dimensional Markov chain developed is used for analytically modeling the throughput behavior of the IEEE 802.11ad EDCA in the presence of virtual antenna sectors, high-gain directional beamforming, and presence of contention and contention-free access periods. Using this developed analytical model, the effect of the number of sectors, number of stations, arbitration inter-Frame Space, packet length, and minimum contention window size on the throughput of the four different access or service categories present in the EDCA under saturated traffic conditions, is investigated. When compared with the simulation outcomes, the proposed analytical model accurately analyzes the network performance by achieving less than 4% error.
Shang Guo - One of the best experts on this subject based on the ideXlab platform.
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Controlling the movement of an articulated figure using parametric Frame-Space interpolation
Fourth International Conference on Computer-Aided Design and Computer Graphics, 1996Co-Authors: Shang Guo, James Robergé, Thom GraceAbstract:This paper describes parametric Frame Space interpolation, a new technique for motion control which allows an animator to define a range of movements using a set of reference movements (a Frame Space). Once this Frame Space has been constructed, an animator can specify an envisioned movement in terms of these reference movements or, more precisely, as an interpolation between these reference movements. The result is a high-level motion control mechanism which, while powerful, retains the artistic expressiveness and visual emphasis characteristic of parametric keyframing. Then we will develop simple human locomotion model that illustrates the use of this parametric Frame Space interpolation technique. This locomotion model blends a range of walking and running movements to form a unified motion Framework.© (1996) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
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A high-level control mechanism for human locomotion based on parametric Frame Space interpolation
Eurographics, 1996Co-Authors: Shang Guo, James RobergéAbstract:This paper describes a locomotion control technique for articulated figures in which new movements are interactively generated from a set of reference movements. Reference movements based on walking and running gait patterns are used to form a locomotion Framework. An animator interactively specifies an envisioned movement as an interpolation between these reference movements by drawing a path within the locomotion Framework and by traversing the path to produce a temporal mapping (or by applying a predefined temporal mapping). The result is a high-level locomotion control mechanism that supports real-time creation of new movements from an existing movement base.
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Controlling Movement Using Parametric Frame Space Interpolation
Models and Techniques in Computer Animation, 1993Co-Authors: Shang Guo, James Robergé, Thom GraceAbstract:In this paper, we introduce a technique for controlling movement, parametric Frame Space interpolation, that extends the artistic expressiveness of parametric keyFrame animation to a higher level of movement control. An animator using this technique defines a range of movements, a Frame Space, in terms of a set of reference (key) movements. The animator then generates movements that interpolate between these reference movements by specifying paths within the Frame Space. The resulting animation process can be used as a freestanding animation technique or as a tool for editing movements produced using other animation methods.
