  HyperSurfaces (HSFs) consist of structurally reconfigurable metasurfaces
whose electromagnetic properties can be changed via a software interface, using
an embedded miniaturized network of controllers. With the HSF controllers,
interconnected in an irregular, near-Manhattan geometry, we propose a robust,
deterministic Fault-Tolerant (FT), deadlock- and livelock-free routing protocol
where faults are contained in a set of disjointed rectangular regions called
faulty blocks. The proposed FT protocol can support an unbounded number of
faulty nodes as long as nodes outside the faulty blocks are connected.
Simulation results show the efficacy of the proposed FT protocol under various
faulty node distribution scenarios.
