MUMBAI, India, Jan. 7 -- Intellectual Property India has published a patent application (202511104006 A) filed by Manipal University, Jaipur, Rajasthan, on Oct. 29, 2025, for 'a method for a fault-tolerant oblivious routing system for 2d noc.'
Inventor(s) include Dr. Manoj Kumar Bohra.
The application for the patent was published on Dec. 12, under issue no. 50/2025.
According to the abstract released by the Intellectual Property India: "The present invention relates to a method for a fault-tolerant oblivious routing in 2D Network-on-Chip (NoC). The method comprises storing two-hop fault information in a fixed-size, directionally organized register table, applying modified Odd-Even turn restrictions, detecting nearby faults using a fault flag register, selecting minimal output directions based on fault status and allowed turns, using standard Odd-Even routing when fault-free, and switching to a fault-tolerant mode when faults are present, maintaining routing continuity by avoiding restricted turns and faulty components, and routing packets along minimal and alternate fault-free paths without virtual channels. Furthermore, the method supports multiple alternative minimal paths, thereby enhancing path diversity and reducing congestion. It uses a small, constant-size table per router, independent of network size, lowering hardware complexity. Simulations show improved throughput and latency over existing methods like DPRA and Zone Defence."
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