Evaluating the Placement of Radio Hubs in Wireless NoC Architecture through Distance Analysis

The use of planar metal interconnects to implement a Network-on-Chip (NoC) is insufficient due to the significant power consumption and high latency resulting from the utilization of multi-hop channels for data transmission within the chip. Therefore, to address the scalability challenges that may impact on-chip communication systems in future many core architectures, the wireless Network-on-Chip (WiNoC) design paradigm has emerged as a promising solution. This paper examines the analysis of the effect of radio hub subnet clustering on the 100 cores mesh Wireless NoC architecture. The focus of this investigation is to analyze the effect of radio hub placements, which is based on distance, on the 100 cores mesh Wireless NoC architecture in terms of transmission delay, network throughput, and energy consumption. Specifically, the study examines the effect of furthest, further, nearer, and nearest radio subnet placement in the architecture that has four radio hubs under the random and transpose traffic scenarios. To validate the results, the investigated radio hub placements on the 100 cores mesh Wireless NoC architectures were simulated using the Noxim simulator, which provides cycle-accurate simulation capabilities. Based on the simulation results, it can be concluded that the WiNoC architecture with the placement of the radio hub at the nearer and furthest proximity can provide the optimal performance indicated by the lowest latencies for the random and transpose traffic respectively.