A Weighted Fault and Congestion Aware Routing Algorithm for Wireless Network-on-Chip Systems

Abstract

Wireless network-on-chip (WiNoC) has emerged as a promising solution to address the scalability challenges of traditional wired network-on-chip (NoC) architectures in multi-core processors. This letter presents a novel weighted fault and congestion-aware (WFCA) routing algorithm for WiNoC that combines fault-tolerant algorithms with congestion mitigation strategies. The proposed approach uses a double-sensing mechanism to effectively distribute packets/flits and avoid congested and faulty regions. Simulation results demonstrate that the proposed algorithm enhances system robustness and maintains performance under various fault rates and traffic patterns compared to existing solutions. The algorithm achieves lower latency and higher throughput in high fault scenarios while ensuring low complexity.