Strategies and Demonstration to Support Multiple Wireless Protocols with a Single RF Front-End
Strategies and Demonstration to Support Multiple Wireless Protocols with a Single RF Front-End
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使用单个 RF 前端支持多种无线协议的策略和演示
DOI：
10.1109/mwc.001.1900224
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发表时间：
2020
影响因子：
12.9
通讯作者：
Onabajo, Marvin
中科院分区：
文献类型：
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作者：
Mohamed, Mohamed;Handagala, Suranga;Xu, Jieming;Leeser, Miriam;Onabajo, Marvin
在一个日益互联的世界中，物联网中对智能手机、平板电脑和其他无线设备的需求在过去几年中激增。这种高需求增加了移动的数据使用和无线通信，导致有限的2.4 GHz频带中的业务需求爆炸式增长。这种业务需求和在相同频率范围内操作的现有无线设备的限制导致了频谱拥塞问题。为了更有效地利用可用频谱，检测所需信号并支持灵活的通信变得重要。在回顾了感兴趣的协议的相关特性之后，本文介绍了一种新的频谱共享方法，该方法通过硬件实现，使用单个RF前端在拥塞的2.4 GHz频段中支持WiFi、LTE和ZigBee共存。开发了一种检测方法，以将WiFi和ZigBee的频谱重采样到LTE采样率，以避免接收信号的连续重采样。进一步的处理步骤，如每个协议的同步和解调进行说明。提供测量结果，以证明显示低符号错误率测试在空气中的干扰实验室环境中的技术。
In an increasingly interconnected world, the demand for smartphones, tablets, and other wireless devices in the IoT has surged over the last few years. This high demand has increased mobile data usage and wireless communication, resulting in an explosion of traffic demand in the limited 2.4 GHz frequency band. This traffic demand and the limitations of existing wireless devices operating in the same frequency range have resulted in a spectrum congestion problem. To utilize the available spectrum more efficiently, it becomes important to detect the desired signals and support flexible communications. After reviewing relevant characteristics of the protocols of interest, this article introduces a new approach for spectrum sharing with a hardware implementation to support the coexistence of WiFi, LTE, and ZigBee in the congested 2.4 GHz band using a single RF front-end. A detection method was developed to resample the preambles of both WiFi and ZigBee to the LTE sampling rate to avoid continuous resampling of the received signal. Further processing steps such as synchronization and demodulation for each protocol are described. Measurement results are provided to demonstrate the techniques showing a low symbol error rate tested over the air in a laboratory environment with interference.
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
发表时间：
2019
期刊：
2019 Wireless Days (WD)
影响因子：
--
作者：
M. Leeser;Suranga Handagala;Mohamed Mohamed;Jieming Xu;M. Onabajo
通讯作者：
M. Onabajo