A Real-Time mmWave Communication Testbed with Phase Noise Cancellation
A Real-Time mmWave Communication Testbed with Phase Noise Cancellation
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DOI：
10.1109/infcomw.2019.8845251
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发表时间：
2019-04
期刊：
影响因子：
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通讯作者：
Adnan Quadri;Huacheng Zeng;Y. Hou
中科院分区：
文献类型：
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作者：
Adnan Quadri;Huacheng Zeng;Y. Hou
随着6 GHz以下频谱的耗尽，将无线通信推向毫米波（mmWave）频率是一种趋势，有望实现多Gbps的数据速率。因此，毫米波被认为是5G无线系统的关键技术，并吸引了大量的研究工作。毫米波研究的蓬勃发展需要一个可重构的毫米波测试平台，可用于原型和验证新的研究思路在真实的无线环境。在本文中，我们使用商业现成的设备（USRP和60 GHz Tx/Rx RF前端）和开源软件包（GNU Radio）开发了一个易于使用的毫米波测试平台。我们的测试平台的一个关键组成部分是一个相位噪声消除（PNC）计划，它可以显着降低相位噪声在接收机通过利用在发射机插入的导频信号。我们已经实现了一个简化版本的IEEE 802.11物理在这个毫米波测试平台。实验结果表明，与PNC方案，我们的测试床可以实现-20 dB EVM数据传输的实时视频流。
As the spectrum under 6 GHz is being depleted, pushing wireless communications onto millimeter wave (mmWave) frequencies is a trend that promises multi-Gbps data rate. mmWave is therefore considered as a key technology for 5G wireless systems and has attracted tremendous research efforts. The booming research on mmWave necessitates a reconfigurable mmWave testbed that can be used to prototype and validate new research ideas in real wireless environments. In this paper, we develop an easy-to-use mmWave testbed using commercial off-the-shelf devices (USRP and 60 GHz Tx/Rx RF frontends) and open-source software package (GNU Radio). A key component of our testbed is a phase noise cancellation (PNC) scheme, which can significantly reduce the phase noise at the receiver by leveraging the pilot signal inserted at the transmitter. We have implemented a simplified version of IEEE 802.11 PHY on this mmWave testbed. Experimental results show that, with the PNC scheme, our testbed can achieve −20 dB EVM data transmission for real-time video streaming.