An FPGA Design Technique to Receive Multiple Wireless Protocols with the Same RF Front End
An FPGA Design Technique to Receive Multiple Wireless Protocols with the Same RF Front End
复制标题
一种利用同一 RF 前端接收多种无线协议的 FPGA 设计技术
DOI：
10.1109/wd.2019.8734199
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
M. Onabajo
中科院分区：
文献类型：
--
作者：
M. Leeser;Suranga Handagala;Mohamed Mohamed;Jieming Xu;M. Onabajo
现场可编程门阵列（FPGA）广泛用于无线网络收发器中，然而它们通常被设计为处理一种特定的无线协议。我们的研究小组正在研究如何使FPGA设计更加通用。在本文中，我们提出了一种FPGA设计，通过确定正在接收的信号，然后应用适当的处理，可以接收Wi-Fi或LTE信号。我们最初以30.72 MHz采样率接收所有信号，这是LTE的基本采样率。设计了一个独特的匹配滤波器，允许我们以这个速率检测Wi-Fi前导码，尽管它是以20 MHz传输的。结果表明，我们可以成功地区分这两个信号，并进一步解码接收到的数据包切换到适当的采样率后，信号的类型已被检测到。
Field Programmable Gate Arrays (FPGAs) are widely used in wireless networking transceivers, however they typically are designed to process one specific wireless protocol. Our research group is investigating how to make FPGA designs more versatile. In this paper, we present an FPGA design that can receive either Wi-Fi or LTE signals by determining which signal is being received, and then applying the appropriate processing. We initially receive all signals at a 30.72 MHz sampling rate, an underlying sampling rate for LTE. A unique matched filter is designed that allows us to detect the Wi-Fi preamble at this rate despite the fact that it is transmitted at 20MHz. Results show that we can successfully distinguish between the two signals and further decode received packets by switching to the appropriate sampling rate after the type of signal has been detected.
影响因子：
12.9
作者：
Sun, Hongjian;Nallanathan, Arumugam;Chen, Yunfei
通讯作者：
Chen, Yunfei