Abstract:

Network-on-Chip (NoC) provides efficient communication support for multicore architectures.Typically,a general NoC is built with unidirectional channels and has a low utilization ratio of links.In order to dynamically allocate the link bandwidth and efficiently use the link bandwidth resources,a new bidirectional channel scheduling algorithm is proposed.A router architecture supporting this bidirectional channel scheduling algorithm is also designed.This novel router architecture provides a crossbar bypass data channel to rapidly transmit data with minor modification of the original data path.Experimental results show that the network saturation throughput and the link utilization get a maximum improvement of 83.3% and 24.53% respectively in comparison to the conventional Mesh with unidirectional links.

Key words: network-on-chip (NoC);bidirectional channel;crossbar bypass