Optical interconnect can provide high bandwidth and low latency, which is considered as a good candidate for future multicore systems. To maintain the scalability of optical networks and simultaneously support high performance communication, we propose a Statistical Multiplexing Optical Network-on-Chip (SMONoC), a new architecture targeting dynamic channel allocation for high channel utilization, a modest amount of photonic devices for low integration cost, and statistical multiplexing for a simple arbitration scheme. The SMONoC consists of two layers, one optical layer for data transmission and one electrical layer for controlling and scheduling. With the introduction of the statistical multiplexing strategy, the SMONoC avoids the confliction between different cores with low complexity. The simulation results show that the SMONoC is a low-latency and high-throughput architecture with high channel utilization under both synthetic traffic patterns and real traffic patterns.

光互连可以提供高带宽和低延迟，这被认为是未来多核系统的理想选择。为了维持光网络的可扩展性并同时支持高性能通信，我们提出了一种统计复用片上光网络（SMONoC），一种针对动态信道分配以实现高信道利用率的新架构，适量的光子设备用于低集成度成本，以及用于简单仲裁方案的统计复用。SMONoC由两层组成，一层用于数据传输的光学层和一层用于控制和调度的电气层。随着统计复用策略的引入，SMONoC避免了复杂度低的不同内核之间的冲突。