Abstract
For fault-tolerant data-link connections, a novel Bi-directional Fault-Tolerant NoC (BFT-NoC) scheme that supports both static and dynamic channel failures is proposed in this chapter. Except for a little performance loss, BFT-NoC can keep the system in normal operation when multiple communication channels are either permanently broken or temporarily failed in an on-chip network. In contrast to the conventional fault-tolerant schemes based on detouring packets, the operation of BFT-NoC is transparent to the adopted routing algorithm. That is, BFT-NoC can be more seamless and efficient since changing routing rules between normal and fault-tolerant operation modes is needless. Accordingly, it is possible for BFT-NoC to perform better in both resource utilization and application feasibility compared with other detour-based schemes.
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