Today's, a promising solution, namely wireless network-on-chip (WiNoC) is utilized in multi-core systems to overcome the constraints of conventional on-chip networks. In WiNoC architectures, wireless routers (WRs) provide high capacity wireless links to reduce the latency of multi-hop communications. However, the buffer size of the WR antenna is limited, and under heavy traffic loads, it's filled and congestion occurs. On the other hand, network performance is degraded severely in the presence of head-of-line (HOL) blocking. Therefore, flow control and scheduling mechanisms are vital for improving the performance of WiNoCs. In this study, a flow control scheme based on an active queue management algorithm, and a priority-based scheduling strategy are suggested. The proposed mechanisms are evaluated under uniform and Bit-complement traffic patterns with different packet injection rate. The simulation results show that the proposed schemes have a significant impact on performance parameters, such as latency and throughput. Moreover, the saturation packet injection rate in WiNoC with four WRs is improved to about 33% under uniform traffic and is increased up to about 50% under the Bit-complement traffic pattern. This is increased by 16 and 50% in WiNoC with 16 WRs for uniform and Bit-complement traffic patterns, respectively, compared to the conventional WiNoCs.

中文翻译：

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流控制和调度机制，可提高无线NoC中的网络性能

当今，有希望的解决方案，即无线片上无线网络（WiNoC）被用于多核系统中，以克服常规片上网络的限制。在WiNoC架构中，无线路由器（WR）提供高容量的无线链路，以减少多跳通信的延迟。但是，WR天线的缓冲区大小是有限的，并且在繁忙的通信负载下，它会被填满并发生拥塞。另一方面，在存在行头（HOL）阻塞的情况下，网络性能会严重降低。因此，流量控制和调度机制对于提高WiNoC的性能至关重要。在这项研究中，提出了一种基于主动队列管理算法的流控制方案和一种基于优先级的调度策略。在具有不同数据包注入速率的统一和位互补流量模式下，对所提出的机制进行了评估。仿真结果表明，所提出的方案对性能参数有很大的影响，例如等待时间和吞吐量。此外，具有四个WR的WiNoC中的饱和数据包注入率在统一流量下提高到大约33％，在比特补全流量模式下增加到大约50％。与传统的WiNoC相比，在具有16个WR的WiNoC中，对于统一和位互补流量模式，这分别增加了16％和50％。在统一流量下，具有四个WR的WiNoC中的饱和数据包注入率提高到约33％，在位互补流量模式下提高到约50％。与传统的WiNoC相比，在具有16个WR的WiNoC中，对于统一和位互补流量模式，这分别增加了16％和50％。在统一流量下，具有四个WR的WiNoC中的饱和数据包注入率提高到约33％，在位互补流量模式下提高到约50％。与传统的WiNoC相比，在具有16个WR的WiNoC中，对于统一和位互补流量模式，这分别增加了16％和50％。