Hybrid QoS Method for Networks-on-Chip

Abstract

In this paper, we propose a hybrid method to provide Quality of Service (QoS) for Networks-on-Chip (NoC). This method combines the advantages of connection-based schemes and connection-less schemes. Thus, compared with traditional methods, this method guarantees the latency between one flit’s generation in the source node and its reception in the destination node, supports a wide range of traffic types such as latency critical, low bandwidth traffic and streaming data which only have bandwidth requirement, and has high link-bandwidth utilization. Moreover, the NoC which supports the proposed method is implemented. Simulation and synthesis results show that this method can guarantee the bandwidth and latency well and is relatively low-cost.