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首页> 外文会议>Information Sciences and Systems, 2009. CISS 2009 >An experimental framework for the evaluation of cooperative diversity
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An experimental framework for the evaluation of cooperative diversity

机译：评价合作社多样性的实验框架

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摘要

Cooperative diversity is the result of relaying among nodes to achieve space diversity in multipath environments that offer limited time and frequency diversity. Although there is now substantial literature covering specification and analysis of cooperative communication strategies based upon models of wireless environments, there is much less work addressing experiments with real-world radio hardware and propagation channels. This work describes the construction of a three node, experimental testbed based upon a network of software-defined radios for development and verification of cooperative protocols. Several decode-and-forward relay protocols have been implemented and evaluated in terms of their diversity gains as measured from experimental curves of bit-error rate versus average signal-to-noise ratio. In contrast to the few other implementation efforts reported, the experimental setup maintains the relative node geometry while moving the network to induce fading, and the experimental results exhibit diversity benefits.
机译：合作分集是节点之间进行中继以在提供有限时间和频率分集的多路径环境中实现空间分集的结果。尽管现在有大量文献涉及基于无线环境模型的协作通信策略的规范和分析，但是处理现实世界中的无线电硬件和传播信道的实验的工作却少得多。这项工作描述了一个基于软件定义的无线电网络的三节点实验性测试平台的构建，用于开发和验证合作协议。根据从误码率与平均信噪比的实验曲线测得的分集增益，已经实现并评估了几种解码转发中继协议。与报告的其他一些实现工作相反，实验设置在移动网络以引起衰落的同时保持了相对节点的几何形状，并且实验结果显示出多样性的好处。

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