69 An Adaptive Time-Division-Multiplexing Optical Networks-on-Chip

As the number of IP cores and the communication demands on a single chip continue increasing, the inter-core interconnection and communication have become a bottleneck of entire Chip Multi-Processors (CMPs). As an alternative interconnection technology, optical interconnection can break through the intrinsic limitation of electronic counterpart on power, bandwidth and signal integration problem, and has been drawn more and more attention. Among all these existing optical interconnection schemes, Time-Division-Multiplexing (TDM) optical Networks-on-Chip (NoC) is a promising one, which can solve the problems emerged in traditional circuit-switched network, such as long path-setup duration, low network utility and unfairness. In this paper, we propose an adaptive TDM optical NoC, which adopts a novel path-setup scheme to improving the end-to-end latency of statical allocated counterpart. Simulation results show the considerable performance improvement.