A New Network on Chip Design Dedicated to Multicast Service

The qualities of service presented in the network on chip are considered as a network performance criteria. However, the implementation of a quality of service, such as multicasting, shows difficulties, especially at the algorithmic level. Numerous studies have tried to implement networks that support the multicast service by adopting various algorithms to maintain the network average latency acceptable. To evaluate these algorithms, their performances are compared with the algorithms based on the multi-unicast. As expected, there is always a performances improvement. Regrettably, there is a possible degradation of latency introduced by such a service because of the large occupation of the network bandwidth for some period (which depends on packet size). In this paper, we propose an architectural solution aiming to avoid this possible degradation.