Abstract - The connection method of Network on Chip (NoC)
fabric or NoC Topology plays a vital role in the performance of
NoC. The end-to-end delay or latency and other performance
metrics of packets in NoCs are highly dependent on the number of
hops that a packet has travelled to reach its destination. A novel
NoC topology called hybrid NoC topology is proposed, which
consists the characteristics of the mesh, the torus and the folded
torus topology. The proposed architecture reduces the number of
average hops by 32% compared to mesh topology, 5% compared to
torus and folded torus topology and offers lesser average latency
26% when compared to mesh topology and 4% lesser average
latency when compared to torus and folded torus topologies,
respectively. The ideal throughput of hybrid topology increases by
200% compared to mesh, 50% compared to that of torus and
folded torus. The proposed hybrid NoC Topology offers significant
improvement in performance in terms of the average minimum hop
count, latency, and throughput. The Verilog RTL of individual
routers and topologies were synthesized using Synopsys DC
compiler targeting 90nm technology. The performance in terms of
area, power and timing shows that the proposed hybrid
architecture is on par with the existing topologies.
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