ICAIS: Improved Contention Aware Input Selection Technique to increase routing efficiency for Network-On-Chip

Network-on-Chip(NoC) has been proposed as a solution to provide better modularity, scalability, reliability and higher bandwidth compared to bus-based communication infrastructures. The performance of Network-on-Chip largely depends on the underlying routing techniques. A routing technique has two constituencies: output selection and input selection. this paper focuses on the improvement of input selection. Two traditional input selections have been used in NoC, First-Come-First-Served (FCFS) input selection and Round-Robin input selection. also, recently a contention-aware input selection (CAIS) technique has been presented for NOC, But there is some problem and defection in this technique. In this paper we improve the problems and defections of contention-aware input selection (CAIS) technique to develop a simple yet effective input selection technique named ICAIS. The simulation results with different traffic patterns show that ICAIS can achieves better performance than the FCFS and CAIS input selections, when combined with either deterministic or adaptive output selection.