On the Impact of Radio Hub Subnet Clustering for 100 cores Mesh Wireless NoC Architecture

Abstract

The integration of numerous embedded cores onto a single die is made possible by the Network-on-chip (NoC), which serves as a crucial technology. The utilization of planar metal interconnects for implementing a NoC through existing methods is inadequate due to the considerable power consumption and high latency caused by the usage of multihop channels in data interchange. Therefore, to address scalability challenges that could impact on-chip communication systems in future manycore architectures have led to the proposal of the wireless Network-on-Chip or WiNoC design paradigm as a potential solution. The impact of radio hub subnet clustering on the 100 cores mesh Wireless NoC architecture is analyzed in this paper. This study investigates the overall delay in data transmission, network throughput, and energy consumption in the 100 cores mesh Wireless NoC architecture with 4 radio hubs by analyzing single, four, and nine-tile radio subnet clustering. The validation of the results involves simulating the 100-core mesh WiNoC architectures being tested using the cycle-accurate Noxim simulator, with both random and transpose traffic workloads. According to the simulation results, the architecture with a four-tile radio hub subnet clustering provides the most optimal performance for both random and transpose traffic distributions at PIR 0.013 flit/cycle/tile when compared to the other analyzed subnet clusterings.