Wireless Router Placements for Long-Distance Communications in MoCs

Wireless Router Placements for Long-Distance Communications in MoCs

연구 분야: Networking

학회: CSI Transactions on ICT

Hybrid architecture is becoming a promising solution for today’s high-performance on-chip communication networks, commonly known as Networks-on-Chip (NoCs). For example, a mesh-based hybrid on-chip network has wired and wireless routers. The intent is to achieve better performance in low latency, high throughput, and low energy than a traditional wired or wireless mesh NoC. The performance of a hybrid mesh NoC is heavily affected by the positions of the wireless routers in the NoC. This paper proposes a placement strategy for placing a wireless router in a wired Mesh NoC (MoC) into a hybrid MoC. The proposed method involves partitioning an underlying network into multiple equal-size subnetworks. Each subnetwork includes two wireless routers for better connectivity between communicating nodes. The proposed strategy on evaluation of a 32-bit 8 × 8 hybrid MoC shows that the basic performance metrics- latency, network throughput, and energy consumption ranges from 18.64 to 42822 cycles, 5.02–11.23 flits/cycle, and 14.91–34.42 μJ, respectively. Furthermore, results improve packet loss, latency, and throughput metrics up to 96%, 98.36%, and 25.77%, respectively, compared to the wired 8 × 8 MoC. Furthermore, the proposed approach improves latency reduction by 1347% and scales by 15 × than a set of previous methods.