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传统NoC映射算法基于拓扑是确定的,无法为具体应用动态选择最优拓扑。无线NoC具有互联简单、低功耗、低延时、多播和动态带宽分配等突出优点。利用灵活的网络接入特性,提出面向无线NoC平台的拓扑与映射联合设计算法,采用改进的能耗模型,结合实时复杂系统特有的注入率、迭代边界等约束,以最小化延时和功耗为目标,同时对拓扑和映射进行优化。通过对无线通信系统——MIMO-OFDM收发端进行建模与仿真,证明该算法较之传统映射算法有明显的性能提升。
The traditional NoC mapping algorithm is based on the topology is determined, unable to dynamically select the optimal topology for the specific application. Wireless NoC has the advantages of simple, low power consumption, low latency, multicast and dynamic bandwidth allocation. Based on the flexible network access characteristics, a joint topology and mapping design algorithm for wireless NoC platform is proposed. By adopting the improved energy consumption model, combining with the injection rate and iterative boundary constraints inherent in real-time complex systems, delay and power consumption are minimized As the goal, while optimizing the topology and mapping. By modeling and simulating the wireless communication system - MIMO-OFDM transmitter and receiver, it is proved that the proposed algorithm has obvious performance improvement over the traditional mapping algorithm.