In this paper, we adopt the basic concept of contention matrix [12] and propose an Ohm’s Law-like traffic splitting model (OLITS) by redefining the elements of contention matrix. The main contributions are as follows.
A motivation example revealing the lacking of global information
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• Flow congestion characterization and prediction through a redefined contention matrix. We characterize the flow congestion by redefining a contention matrix, which contains parameters of average flow rate and burstness. We define flow resistance as the flow congestion factor extracted from the contention matrix, and use the parallel resistance theory to predicate congestion state.
• OLITS. The proposed flow resistance reflects the global congestion map of an application specific NoC. Inspired by Ohm’s law with parallel resistance, we assign the traffic splitting proportions of the parallel sub-flows ac- cording to the predicted congestion information. In this way, the traffic can be well-balanced and the worst-case delay can be effectively improved.