Early Results on Hydra: A Flexible MAC/PHY Multihop Testbed
Early Results on Hydra: A Flexible MAC/PHY Multihop Testbed
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Hydra 的早期结果：灵活的 MAC/PHY 多跳测试台
DOI：
10.1109/vetecs.2007.393
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
S. Nettles
中科院分区：
文献类型：
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作者：
K. Mandke;Soon;Gibeom Kim;R. Grant;R. Daniels;Wonsoo Kim;R. Heath;S. Nettles
Hydra 是 UT Austin 正在开发的一个灵活的无线网络测试平台。我们的重点是支持多无线跳的网络，并且网络（尤其是 MAC）利用复杂的 PHY 技术，例如 OFDM 和 MIMO。我们认为，对于这个领域来说，仅靠模拟是不够的，需要工作原型来验证算法和协议。 Hydra 节点由灵活的 RF 前端和带有基于软件的 MAC 和 PHY 的通用机器组成。使用 Click 模块化路由器和 GNU 无线电的框架以及 C++ 编码，可以相对轻松地实现需要自定义 MAC 和 PHY 的跨层设计的工作原型。我们介绍了 Hydra 的架构和实现，以及速率自适应 MAC 的初步跨层设计实验。这些早期结果表明 Hydra 是一种适用于无线网络研究的强大原型工具。
Hydra is a flexible wireless network testbed being developed at UT Austin. Our focus is networks that support multiple wireless hops and where the network, especially the MAC, takes advantage of sophisticated PHY techniques, such as OFDM and MIMO. We argue that for this domain simulation alone is not adequate and that working prototypes are needed to validate algorithms and protocols. Hydra nodes consist of a flexible RF front-end and a general purpose machine with a software based MAC and PHY. Using the frameworks of the Click modular router and GNU radio and coding in C++ makes it relatively easy to implement working prototypes of cross-layer designs that require custom MACs and PHYs. We present the architecture and implementation of Hydra, as well as a preliminary cross-layer design experiment for a rate-adaptive MAC. These early results show Hydra is a capable prototyping tool for wireless network research.