Showing papers by "István Gódor published in 2006"

Multi-domain network and method for multi-domain network

Abstract: Each domain of a multi-domain network collects intra-domain routing information relating to that domain and makes a reduced view of that information available to other domains of the network, and in which each domain of the network uses its own intra-domain routing information together with the reduced-view routing information from the other domains to form a logical view of the network so as to enable that domain to make an end-to-end route selection decision.

Wireless multicast for layered media

Abstract: The present invention relates to a method and arrangement for optimizing data rates in communicating multicast data, the method comprising the steps of: obtaining available data rates corresponding to a user station; computing optimal data rate within each access network cell; and controlling the data rate for each data packet at each access network cell.

The Layer-Independent Descriptor Concept

Abstract: With the fast improvements of broadband technologies, more and more demanding services can be accessed. Broadband access is supported by a range of wireless and wireline technologies. Well known representatives are WLAN and UMTS for wireless and xDSL for wireline access. However, the highly varying nature of wireless channels and the crosstalk behavior of the DSL channel are typical traits, and most challenging to combat. Moreover, the stringent requirements of real-time applications require enhancements in service delivery. The tremendous interest in communication has driven the deployment of new access systems. Hence, for the End-to-End point of view, the service delivery multifarious due to the heterogeneity of the underlying transport network. Therefore, to enable a transport independent path set-up, application and network properties that may influence the user-perceived quality need to be unified. Thereby, media scalability plays a key role. Recently, cross-layer communication is getting acceptance as a method that efficiently increases the system performance. Unlike previous works that mainly addressed the issue of application based feedback, we focus on the information that the application can provide to guide the network for local stream management. We present the necessary set of Application Layer information for scalable audiovisual streams to offer individual QoS, at lowermost packet overhead. Finally, we show the sustainable gain in system performance based on a DSL use-case.