Indian Journal of Science and Technology

Abstract

The routing algorithm plays an important role in the performance of the network on chip. In this paper we propose an adaptive routing, which uses a fuzzy controller to combine two congestion metrics free buffers and crossbar demand. The objective of the proposed routing algorithm is, choosing channel that has more free-slots input buffer beyond adjacent routers and the less number of active requester for a given output port. Simulation results show that the proposed method applied to odd-even routing algorithm can effectively improves average delay and throughput to meet load balance requirement and avoid hotspot with low hardware overhead. Keywords. Network on Chip, System on Chip, Fuzzy Controller, Congestion, Routing