Performance Evaluation of Traffic Permutations for Mesh On-Chip Networks

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Networks-on-Chip (NoC) is recently proposed as an alternative to the on-chip bus to meet the increasing requirement of complex communication needs in Systems-on-Chip (SoC). Using on-chip interconnection networks in place of ad-hoc global wiring structures the top level wires on a chip and facilitates modular design. The structured network wiring gives well-controlled electrical parameters that eliminate timing iterations and enable the use of high-performance circuits to reduce latency and increase bandwidth. Using a network to replace global wiring has advantages of structure, performance, and modularity. With this approach, system modules (processors, memories, peripherals, etc.) communicate by sending packets to one another over the network.