Performance Evaluation of the Cooperative Multimedia Broadcast Network

In this paper, we propose a new multimedia broadcast network architecture, in which the cellular base stations act as digital fixed relays and cooperate with the broadcast station to deliver messages to the whole network, forming the so-called cooperative broadcast network . This concept fully exploits the benefits of cooperative relaying . Through the evaluation of coverage and throughput by theoretical analyzing and simulation, it is consistently shown that this scheme can dramatically extend the broadcast station coverage range without any capacity penalty, and it can also provide very high data rate service in an almost-ubiquitous manner throughout the network. Also we can come to the conclusion that the relay strategy is especially efficient for mobile terminals at the edge of the cell that would have poor channel conditions.