Abstract
Network-on-Chip (NoC) approach emerged as a promising alternative to overcome the bottleneck and scalability problems of traditional bus-based and point-to-point communication architectures. NoC implementation can be either fully synchronous, Globally Asynchronous and Locally Synchronous (GALS) or fully asynchronous. Asynchronous system is a potential solution to overcome the synchronous NoC design issues in deep submicron regime. GALS NoCs have reduced data throughput due to latency overheads caused by the synchronization interfaces whereas in asynchronous NoCs, each packet needs to traverse only two synchronization interfaces. This paper makes a comparative study of the state-of-the-art asynchronous NoC routers.
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