Abstract
Objectives: To design a label switched- predictor router in 2D Network on chip and compare the power consumption in label switched router and label switched predictor router. Methods/Statistical Analysis: To implement label switching technique with Maxflow Fulkerson algorithm to find the routing path. The modification added in this paper is the predictor which predicts whether the data is repeated data or new data and if it is a repeated data, the previous output will be considered by which power consumption is improved. An 8 bit data is provided and compared with the previous data to check for repeated data and Xilinx software and ISIM simulator was implemented. Findings: The power consumption in label switched router is 177.14mW and in label switched-predictor router is 155.85mW. There is 12 % improvement in power consumption. When the size of network increases; the power consumption for the repeated data inputs will be reduced by this implementation. Application/Improvements: This work can be extended by applying streaming video inputs to the 3x 3 mesh network and compare its performance. Keywords: Label Switching, Network on Chip, Predictor, Power, 2 Dimension
Highlights
The number of transistors in a System on chip is 2 Billion which is equal to 10000 lakhs
Due to technology scaling into nanometer scale, power is becoming a dominant factor in overall parameters in Network on chip
Input data which has to be transferred from source node to destination node may be redundant and the power can be optimized in such scenarios
Summary
The number of transistors in a System on chip is 2 Billion which is equal to 10000 lakhs. Physical implementation through floor planning and place-and-route is made increasingly difficult by competing and sometimes conflicting area, wiring, frequency, clock domain and voltage domain constraints. This is achieved by network on chip where decoupling the computation and communication. Label switching inherently supports traffic engineering, as labels can be chosen based on desired hop or required QoS services. The advantages of label switching technique are lower cost, Quality of service attributes, Scalability and traffic routing. A predictor is incorporated in the input of the source node to check for the redundancy and label switching technique contributes traffic engineered router with improvement in power consumption
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