The Experts below are selected from a list of 324 Experts worldwide ranked by ideXlab platform
Sinan Xiao - One of the best experts on this subject based on the ideXlab platform.
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dresr dynamic routing in enterprise service bus
International Conference on e-Business Engineering, 2007Co-Authors: Xiaoying Bai, Jihui Xie, Bin Chen, Sinan XiaoAbstract:Enterprise service bus (ESB) provides the infrastructure services for message exchange and routing in service-oriented architecture (SOA). Dynamic routing is necessary to support dynamic service selection and composition. However, current ESB software can only support fixed routing path by Static Configuration files and/or hard-coded rules. This paper proposes DRESR (dynamic reconfigurable ESB service routing) framework to enable the dynamic routing path construction and message routing. DRESER defines the mechanisms for routing path abstraction, instantiation, and (re)Configuration. It supports the specification of service selection preferences and facilitates the service selection based on runtime testing results.
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ICEBE - DRESR: Dynamic Routing in Enterprise Service Bus
IEEE International Conference on e-Business Engineering (ICEBE'07), 2007Co-Authors: Xiaoying Bai, Jihui Xie, Bin Chen, Sinan XiaoAbstract:Enterprise service bus (ESB) provides the infrastructure services for message exchange and routing in service-oriented architecture (SOA). Dynamic routing is necessary to support dynamic service selection and composition. However, current ESB software can only support fixed routing path by Static Configuration files and/or hard-coded rules. This paper proposes DRESR (dynamic reconfigurable ESB service routing) framework to enable the dynamic routing path construction and message routing. DRESER defines the mechanisms for routing path abstraction, instantiation, and (re)Configuration. It supports the specification of service selection preferences and facilitates the service selection based on runtime testing results.
Xiaoying Bai - One of the best experts on this subject based on the ideXlab platform.
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dresr dynamic routing in enterprise service bus
International Conference on e-Business Engineering, 2007Co-Authors: Xiaoying Bai, Jihui Xie, Bin Chen, Sinan XiaoAbstract:Enterprise service bus (ESB) provides the infrastructure services for message exchange and routing in service-oriented architecture (SOA). Dynamic routing is necessary to support dynamic service selection and composition. However, current ESB software can only support fixed routing path by Static Configuration files and/or hard-coded rules. This paper proposes DRESR (dynamic reconfigurable ESB service routing) framework to enable the dynamic routing path construction and message routing. DRESER defines the mechanisms for routing path abstraction, instantiation, and (re)Configuration. It supports the specification of service selection preferences and facilitates the service selection based on runtime testing results.
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ICEBE - DRESR: Dynamic Routing in Enterprise Service Bus
IEEE International Conference on e-Business Engineering (ICEBE'07), 2007Co-Authors: Xiaoying Bai, Jihui Xie, Bin Chen, Sinan XiaoAbstract:Enterprise service bus (ESB) provides the infrastructure services for message exchange and routing in service-oriented architecture (SOA). Dynamic routing is necessary to support dynamic service selection and composition. However, current ESB software can only support fixed routing path by Static Configuration files and/or hard-coded rules. This paper proposes DRESR (dynamic reconfigurable ESB service routing) framework to enable the dynamic routing path construction and message routing. DRESER defines the mechanisms for routing path abstraction, instantiation, and (re)Configuration. It supports the specification of service selection preferences and facilitates the service selection based on runtime testing results.
Timo D. Hämäläinen - One of the best experts on this subject based on the ideXlab platform.
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GLOBECOM - On Contention Resolution Parameters for the IEEE 802.16 Base Station
IEEE GLOBECOM 2007-2007 IEEE Global Telecommunications Conference, 2007Co-Authors: Alexander Sayenko, Olli Alanen, Timo D. HämäläinenAbstract:In the IEEE 802.16 networks, the base station allocates resources to subscriber stations based on their QoS requirements and bandwidth request sizes. A subscriber station can send a bandwidth request when it has an uplink grant allocated by the base station or by taking part in the contention resolution mechanism. This paper presents analytical calculations for parameters that control the contention resolution process in the IEEE 802.16 networks. In particular, the backoff start/end values and the number of the request transmission opportunities are considered. Simulation results confirm the correctness of theoretical calculations. They also reveal that the adaptive parameter tuning results in a better throughput when compared to a Static Configuration. At the same time, all the timing requirements are met.
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Analysis and simulation of the signaling protocols for the diffserv framework
Lecture Notes in Computer Science, 2006Co-Authors: Alexander Sayenko, Olli Alanen, O. Karppinen, Timo D. HämäläinenAbstract:This paper considers signaling protocols for the DiffServ QoS framework. Originally, DiffServ had no standardized signaling solution, which resulted in the Static Configuration for the DiffServ domain. However, the dynamic allocation of resources within the domain allows to ensure the per-flow QoS guarantees and achieve better performance. At the moment, several signaling solutions for DiffServ framework are available. Thus, it is crucial to analyse these solutions and interconnections between them. In particular, the RSVP, aggregated RSVP, GIST, COPS, and SIP protocols will be considered. The simulation comprises several scenarios that present that the dynamic allocation of resource within the domain can provide considerably better results when compared to the Static Configuration.
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NEW2AN - Analysis and simulation of the signaling protocols for the diffserv framework
Next Generation Teletraffic and Wired Wireless Advanced Networking, 2006Co-Authors: Alexander Sayenko, Olli Alanen, O. Karppinen, Timo D. HämäläinenAbstract:This paper considers signaling protocols for the DiffServ QoS framework. Originally, DiffServ had no standardized signaling solution, which resulted in the Static Configuration for the DiffServ domain. However, the dynamic allocation of resources within the domain allows to ensure the per-flow QoS guarantees and achieve better performance. At the moment, several signaling solutions for DiffServ framework are available. Thus, it is crucial to analyse these solutions and interconnections between them. In particular, the RSVP, aggregated RSVP, GIST, COPS, and SIP protocols will be considered. The simulation comprises several scenarios that present that the dynamic allocation of resource within the domain can provide considerably better results when compared to the Static Configuration.
Won-kwang Park - One of the best experts on this subject based on the ideXlab platform.
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Analysis and improvement of direct sampling method in the mono-Static Configuration
IEEE Geoscience and Remote Sensing Letters, 2019Co-Authors: Sangwoo Kang, Marc Lambert, Won-kwang ParkAbstract:The recently introduced non-iterative imaging method entitled "direct sampling method" (DSM) is known to be fast, robust, and effective for inverse scattering problems in the multi-Static Configuration but fails when applied to the mono-Static one. To the best of our knowledge no explanation of this failure has been provided yet. Thanks to the framework of the asymptotic and the far-field hypothesis in the 2D scalar Configuration an analytical expression of the DSM indicator function in terms of the Bessel function of order zero and sizes, shapes and permittivities of the inhomogeneities is obtained and the theoretical reason of the limitation identified. A modified version of DSM is then proposed in order to improve the imaging method. The theoretical results are supported by numerical results using synthetic data.
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Analysis of Kirchhoff Migration and Direct Sampling Method within Far-Field Approximation: From the Multi-Static to the Mono-Static Configuration
2018 2nd URSI Atlantic Radio Science Meeting (AT-RASC), 2018Co-Authors: Sangwoo Kang, Marc Lambert, Won-kwang ParkAbstract:A recently developed direct sampling method (DSM) is studied in the framework of multi- and mono-Static Configurations within the far-field hypothesis. A full analysis of the behavior of the DSM has not been provided yet in both cases even if, due to a lack of information compared to multi-Static data, the mono-Static Configurations need an adapted analysis. Thanks to the theoretical analysis based on the asymptotic formula for far-field patterns and small obstacles hypothesis, the behavior of DSM is explained and the reason for which it failed in the mono-Static Configuration is identified. A modified DSM is then proposed and compared to the classical Kirchhoff migration technique (KM) in order to improve the imaging efficiency of the DSM approach. The theoretical results are supported by numerical experiments with synthetic data.
Jihui Xie - One of the best experts on this subject based on the ideXlab platform.
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dresr dynamic routing in enterprise service bus
International Conference on e-Business Engineering, 2007Co-Authors: Xiaoying Bai, Jihui Xie, Bin Chen, Sinan XiaoAbstract:Enterprise service bus (ESB) provides the infrastructure services for message exchange and routing in service-oriented architecture (SOA). Dynamic routing is necessary to support dynamic service selection and composition. However, current ESB software can only support fixed routing path by Static Configuration files and/or hard-coded rules. This paper proposes DRESR (dynamic reconfigurable ESB service routing) framework to enable the dynamic routing path construction and message routing. DRESER defines the mechanisms for routing path abstraction, instantiation, and (re)Configuration. It supports the specification of service selection preferences and facilitates the service selection based on runtime testing results.
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ICEBE - DRESR: Dynamic Routing in Enterprise Service Bus
IEEE International Conference on e-Business Engineering (ICEBE'07), 2007Co-Authors: Xiaoying Bai, Jihui Xie, Bin Chen, Sinan XiaoAbstract:Enterprise service bus (ESB) provides the infrastructure services for message exchange and routing in service-oriented architecture (SOA). Dynamic routing is necessary to support dynamic service selection and composition. However, current ESB software can only support fixed routing path by Static Configuration files and/or hard-coded rules. This paper proposes DRESR (dynamic reconfigurable ESB service routing) framework to enable the dynamic routing path construction and message routing. DRESER defines the mechanisms for routing path abstraction, instantiation, and (re)Configuration. It supports the specification of service selection preferences and facilitates the service selection based on runtime testing results.
