Broadcasting problem: различия между версиями
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'''Broadcasting problem''' | '''Broadcasting problem''' — ''[[проблема широковещания]].'' | ||
The '''broadcasting problem''' is the problem of information dissemination described in a | The '''broadcasting problem''' is the problem of information dissemination described in a | ||
group of individuals connected by a communication network. In | group of individuals connected by a communication [[network]]. In | ||
broadcasting, one node knows a piece of information and needs to | broadcasting, one [[node]] knows a piece of information and needs to | ||
transmit it to everyone else. This is achieved by placing | transmit it to everyone else. This is achieved by placing | ||
communication calls over the communication lines of the network. It is | communication calls over the communication lines of the network. It is | ||
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at any given time, and communication between two nodes takes one | at any given time, and communication between two nodes takes one | ||
unit of time. This model implies that we will deal with connected | unit of time. This model implies that we will deal with connected | ||
graphs without loops and multiple edges to model the communication | [[graph, undirected graph, nonoriented graph|graphs]] without [[loop|loops]] and multiple [[edge|edges]] to model the communication | ||
network. Note also that, depending on their cases, we will either | network. Note also that, depending on their cases, we will either | ||
consider a half-duplex or a full-duplex model. In the letter, when | consider a half-duplex or a full-duplex model. In the letter, when | ||
communication takes place along a communication line, the information | communication takes place along a communication line, the information | ||
flows in both directions, while in the former only one direction is | flows in both directions, while in the former only one direction is | ||
allowed. Hence, in the half-duplex model, we will deal with directed | allowed. Hence, in the half-duplex model, we will deal with [[directed graph|directed graphs]], while we will consider undirected graphs in the full-duplex | ||
graphs, while we will consider undirected graphs in the full-duplex | |||
model. | model. | ||
==See also== | ==See also== | ||
*''Gossiping problem''. | * ''[[Gossiping problem]]''. | ||
==Литература== | |||
* Евстигнеев В.А., Касьянов В.Н. Словарь по графам в информатике. — Новосибирск: Сибирское Научное Издательство, 2009. | |||
Текущая версия от 16:41, 20 апреля 2012
Broadcasting problem — проблема широковещания.
The broadcasting problem is the problem of information dissemination described in a group of individuals connected by a communication network. In broadcasting, one node knows a piece of information and needs to transmit it to everyone else. This is achieved by placing communication calls over the communication lines of the network. It is assumed that a node can communicate with at most one of its neighbors at any given time, and communication between two nodes takes one unit of time. This model implies that we will deal with connected graphs without loops and multiple edges to model the communication network. Note also that, depending on their cases, we will either consider a half-duplex or a full-duplex model. In the letter, when communication takes place along a communication line, the information flows in both directions, while in the former only one direction is allowed. Hence, in the half-duplex model, we will deal with directed graphs, while we will consider undirected graphs in the full-duplex model.
See also
Литература
- Евстигнеев В.А., Касьянов В.Н. Словарь по графам в информатике. — Новосибирск: Сибирское Научное Издательство, 2009.