Hierarchical architecture of Wireless Network on Chips (WNoCs) composes of wired level and wireless level. In this architecture, subnetworks in wired level are connected by wireless. One of the main reliability challenges in the wired level of WNoC architecture is the crosstalk fault. Crosstalk fault occurs among the long and adjacent wires of wired level of WNoC due to tandem data traversal. Triple Opposite Directions (TODs) patterns are the worst data traversal patterns that impose the highest intensity effects on wires. To solve this problem, this paper presents a mechanism called On-Fly-TOD. In the architecture of the proposed mechanism, subnetworks are not only connected by a wireless level, but also by wired levels. In other words, this architecture uses the inherent characteristic of WNoCs by sending packets with TOD patterns by the wireless level. In this mechanism, tandem flits are counted and flits with high amounts of TODs are sent using wireless level. Simulations show that On-Fly-TOD mechanism provides a trade-off between performance, power consumption and reliability issues. In addition, this architecture suitably scales with the ever-increasing number of on-chip processing elements (PEs) which guarantees a minimum number of hop counts between any source and destination without using long wires as the number of on-chip PEs increases.

中文翻译：

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On-Fly-TOD：WNoC 中减少串扰故障的有效机制

片上无线网络（WNoC）的分层架构由有线层和无线层组成。在该架构中，有线级别的子网通过无线连接。WNoC 架构有线级别的主要可靠性挑战之一是串扰故障。WNoC的有线级长线和相邻线之间由于串联数据穿越而发生串扰故障。三重相反方向 (TOD) 模式是对电线施加最高强度影响的最差数据遍历模式。为了解决这个问题，本文提出了一种称为 On-Fly-TOD 的机制。在所提出机制的架构中，子网不仅通过无线层连接，还通过有线层连接。换句话说，该架构通过在无线级别发送具有 TOD 模式的数据包来使用 WNoC 的固有特性。在这种机制中，对串联闪烁进行计数，并使用无线电平发送具有大量 TOD 的闪烁。仿真表明 On-Fly-TOD 机制在性能、功耗和可靠性问题之间提供了权衡。此外，该架构随着片上处理元件 (PE) 数量的不断增加而适当扩展，这保证了任何源和目的地之间的跳数最少，而无需随着片上 PE 数量的增加而使用长线。功耗和可靠性问题。此外，该架构随着片上处理元件 (PE) 数量的不断增加而适当扩展，这保证了任何源和目的地之间的跳数最少，而无需随着片上 PE 数量的增加而使用长线。功耗和可靠性问题。此外，该架构随着片上处理元件 (PE) 数量的不断增加而适当扩展，这保证了任何源和目的地之间的跳数最少，而无需随着片上 PE 数量的增加而使用长线。