LATEX: New Selection Policy for Adaptive Routing in Application-Specific NoC

NoC performance largely depends on the underlying deadlock-free and efficient routing algorithm. Selection strategies play a pivotal role in the effectiveness of the routing algorithm by selecting the final output channel when there is more than one possible output link returned by an adaptive routing. In this paper a novel selection strategy, LATEX, is proposed that can be used with any adaptive routing algorithm for specified applications. The objective of the proposed selection strategy is to efficiently balance traffic load and reach better performance results. Performance evaluation is carried out by using a flit-accurate simulator under two real traffic scenarios. Result experiments show that the proposed selection strategy applied to several routing algorithms significantly improves average delay, max delay and power consumption.