This chapter presents several techniques for broadcasting multimedia data (audio and video) over the Internet. Internet broadcasting (also called webcasting) techniques have become very important in applications such as Internet (or Web) radio and television, real-time broadcasting of critical data (such as stock prices), distance learning, videoconferencing, and many others. We describe the cu...

The growing availability of access to the Internet has changed – and is still changing – the technical, economic and regulatory conditions under which broadcasting is taking place. This is in particular an issue for terrestrial broadcasting, as mobile services try to gain access to spectrum once exclusively used by terrestrial broadcasting networks. Changes in users’ habits and expectations, an...

We consider the problem of deterministic broadcasting in radio networks when the nodes have limited knowledge about the topology of the network. We show that for every deterministic broadcasting protocol there exists a network, of radius 2, for which the protocol takes

This paper constructs a model of the recorded music market to investigate the consequences of local content requirements in broadcasting for the ‘internationalization’ of domestic music. We model the entry decisions of bands, the contracting decisions of record companies, the airplay decisions of radio stations and the radio listening and recording purchasing decisions of consumers. We show tha...

We consider asynchronous deterministic broadcasting in radio networks. An execution of a broadcasting protocol is a series of events, each of which consists of simultaneous transmitting or delivering of messages. The aim is to transmit the source message to all nodes of the network. If two messages are delivered simultaneously to a node, a collision occurs and this node does not hear anything. ...

We present an algorithm to solve the Frequency Assignment Problem for mobile cellular systems and radio and television broadcasting. Frequencies must be assigned to transmitters in order to meet interference requirements and so that the overall signal/noise ratio is satisfactory. The basic scheme is an exact enumerative method, provided with ̄xing criteria to reduce the size of the instances. L...

The global migration of television (TV) from analogue to digital broadcasting will result in more spectrum bands (known as TV white space), previously used in analogue broadcasting, becoming available and unoccupied. A question is on how much white space is available and how can it be used opportunistically and dynamically without causing harmful interference to licensed users? In this paper, w...

We study distributed broadcasting protocols with few transmissions (‘shots’) in radio networks of unknown topology. In particular, we examine the case in which a bound k is given and a node may transmit at most k times during the broadcasting protocol. We focus on oblivious algorithms, that is, algorithms where each node decides whether to transmit or not with no consideration of the transmissi...

Broadcasting is a basic network communication task, where a message initially held by a source node has to be disseminated to all other nodes in the network. Fast algorithms for broadcasting in radio networks have been studied in a wide variety of different models and under different requirements. Some of the main parameters giving rise to the different variants of the problem are the accessibi...