Dynamic bandwidth allocation

Dynamic bandwidth allocation

Dynamic bandwidth allocation is a technique by which traffic bandwidth in a shared telecommunications medium can be allocated on demand and fairly between different users of that bandwidth. This is a form of bandwidth management, and is essentially the same thing as statistical multiplexing. Where the sharing of a link adapts in some way to the instantaneous traffic demands of the nodes connected to the link.

Dynamic bandwidth allocation takes advantage of several attributes of shared networks: (1) all users are typically not connected to the network at one time (2) even when connected, users are not transmitting data (or voice or video) at all times (3) most traffic is "bursty" -- there are gaps between packets of information that can be filled with other user traffic

Different network protocols implement dynamic bandwidth allocation in different ways. These methods are typically defined in standards developed by standards bodies such as the ITU, IEEE, FSAN, or IETF. One example is defined in the ITU G.983 specification for passive optical network (PON).

See also

Wikimedia Foundation. 2010.

Игры ⚽ Нужна курсовая?

Look at other dictionaries:

  • dynamic bandwidth allocation —    A method of bandwidth allocation that subdivides the available bandwidth between multiple applications almost instantaneously, to provide each application with just the amount of bandwidth that it currently needs …   Dictionary of networking

  • Bandwidth guaranteed polling — (BGP) is a dynamic bandwidth allocation algorithm designed by Maode Ma et al. at the Singapore University. This is an instance of an algorithm that allocates bandwidth based on fixed weights.BGP divides a window of time into fixed sized slots, a… …   Wikipedia

  • Bandwidth (computing) — For other uses, see Bandwidth. In computer networking and computer science, bandwidth,[1] network bandwidth,[2] data bandwidth,[3] or digital bandwidth[4][5] is a measure of available or consumed data communication resources expressed in… …   Wikipedia

  • Dynamic synchronous Transfer Mode — or DTM for short, is a networking technology, standardized by ETSI. It is designed to provide a guaranteed Quality of Service (QoS) for the emerging class of e.g. streaming video services, but can be used for packet based services as well. It ha …   Wikipedia

  • Dynamic synchronous transfer mode — Internet protocol suite Application layer BGP DHCP DNS FTP …   Wikipedia

  • Channel allocation schemes — In radio resource management for wireless and cellular network, channel allocation schemes are required to allocate bandwidth and communication channels to base stations, access points and terminal equipment. The objective is to achieve maximum… …   Wikipedia

  • Dynamic circuit network — A dynamic circuit network (DCN) is an advanced computer networking technology that combines traditional packet switched communication based on the Internet Protocol, as used in the Internet, with circuit switched technologies that are… …   Wikipedia

  • Passive optical network — A passive optical network (PON) is a point to multipoint, fiber to the premises network architecture in which unpowered optical splitters are used to enable a single optical fiber to serve multiple premises, typically 32 128. A PON consists of an …   Wikipedia

  • Statistical multiplexing — is a type of communication link sharing, very similar to Dynamic bandwidth allocation (DBA). In statistical multiplexing, a communication channel is divided into an arbitrary number of variable bit rate digital channels or data streams. The link… …   Wikipedia

  • Radio resource management — (RRM) is the system level control of co channel interference and other radio transmission characteristics in wireless communication systems, for example cellular networks, wireless networks and broadcasting systems. RRM involves strategies and… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”