关键词: 片上网络（NoC）, NS2网络模拟器, 延迟, 吞吐量, 拓扑

Abstract: The challenge of interconnection architecture based on bus is more and more serious，with the increase of complexity of SoC.In such background，the NoC with the characteristic of network interconnection has emerged as the times required.The paper analyzes several important criterions of NoC performance.Several criterions of NoC topologies with NS2（the network simulator） are evaluated.Finally，an instructive conclusion is drawn when design a NoC.Trade-offs with regard to several criterions of performance are explored，such as delay，throughput，area，power dissipation and re-usability in the NoC design and a proper architecture is choosen.

Key words: Network on Chip（NoC）, Network Simulator-Version 2（NS2）, delay, throughput, topology