Channel Mapping Strategies For Effective Protection Switching In Fail-Operational Hard Real-Time Nocs

With Multi Processor System-on-Chips (MPSoC) scaling up to thousands of processing elements, bus-based solutions have been dropped in favor of Network-on-Chips (NoC) as proposed in [2]. However, MPSoCs are yet hesitantly adopted in safety-critical fields, mainly due to the difficulty of ensuring strict isolation between different applications running on a single MPSoC as well as providing communication with Guaranteed Service (GS) to critical applications. This is particularly difficult in the NoC as it constitutes a network of shared resources. Moreover, safety-critical applications require some degree of Fault-Tolerance (FT) to guarantee safe operation at all times.