Interference-Aware Wireless Network-on-Chip Architecture Using Directional Antennas
Interference-Aware Wireless Network-on-Chip Architecture Using Directional Antennas
复制标题
使用定向天线的干扰感知无线片上网络架构
DOI：
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发表时间：
2017
期刊：
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通讯作者：
A. Ganguly
中科院分区：
文献类型：
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作者：
H. Mondal;G. Harsha;Md Shahriar Shamim;Sujay Deb;A. Ganguly
无线片上网络（WiNoC）最近被引入用于解决传统多跳NoC架构的可扩展性限制。现有的WiNoC架构通常使用毫米波天线，而没有显著的定向增益，沿着令牌传递协议来访问共享的无线介质。这限制了可实现的性能优势，因为一次只能有一个无线对进行通信。在不久的将来，通过设计在通常用于片上无线互连的毫米波频谱中的不相交频带中操作的收发器来任意扩大非重叠信道的数量也是不切实际的。因此，我们探索使用定向天线，从而多个无线互连对可以同时进行通信。然而，并发的无线通信可能导致干扰。在NoC中，可以通过优化无线接口（WI）的放置来最大限度地提高性能，同时最大限度地减少干扰。为了解决这个问题，我们提出了一个干扰感知的WI布局算法与路由策略的WiNoC架构，通过将定向平面对数周期天线（PLPA）。这种定向无线片上网络（DWiNoC）架构实现了收发器之间的点对点链路，因此多个无线链路可以同时工作而不会相互干扰。
Wireless Network-on-Chip (WiNoC) has been recently introduced for addressing the scalability limitations of conventional multi-hop NoC architectures. Existing WiNoC architectures generally use millimeter-wave antennas without significant directional gains, along with token passing protocol to access the shared wireless medium. This limits the achievable performance benefits since only one wireless pair can communicate at a time. It is also not practical in the immediate future to arbitrarily scale up the number of non-overlapping channels by designing transceivers operating in disjoint frequency bands in the millimeter-wave spectrum commonly adopted for on-chip wireless interconnects. Consequently, we explore the use of directional antennas whereby multiple wireless interconnect pairs can communicate simultaneously. However, concurrent wireless communications can result in interference. This can be minimized in NoC by optimal placement of wireless interfaces (WIs) to maximize performance while minimizing interference. To address this, we propose an interference-aware WIs placement algorithm with routing strategy for WiNoC architecture by incorporating directional planar log-periodic antennas (PLPAs). This directional wireless network-on-chip (DWiNoC) architecture enables point-to-point links between transceivers and hence multiple wireless links can operate at the same time without interference.