Temperature-aware wireless network-on-chip architecture

Long-range wireless shortcuts in Network-on-Chip (NoC) architectures are shown to significantly improve energy-efficiency in on-chip data transfer. However, over-utilization of the wireless shortcuts and non-uniform traffic patterns may result in thermal hotpots in the NoC links or switches. In this work we propose a cross-layer approach of optimizing the NoC topology to achieve a balanced traffic distribution and temperature-aware routing (TAR) scheme to avoid thermal hotspots. We demonstrate that the proposed wireless NoC architecture is able to reduce temperature of NoC components and the TAR scheme is able to restrict the temperatures near a target threshold value.