Software-Defined Radio-Based Evaluation Platform for Highly Mobile IEEE 802.22 System
Software-Defined Radio-Based Evaluation Platform for Highly Mobile IEEE 802.22 System
复制标题
适用于高度移动 IEEE 802.22 系统的软件定义无线电评估平台
DOI：
10.1109/ojvt.2022.3164461
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发表时间：
2022
影响因子：
6.4
通讯作者：
H. Harada
中科院分区：
文献类型：
--
作者：
Ruiting Ouyang;T. Matsumura;Keiichi Mizutani;H. Harada
利用电视白色空间（TVWS）的广域通信系统由于其优良的传播特性而能够实现全覆盖和低成本的车辆和运输通信。IEEE 802.22被开发为基于TVWS的固定通信标准，以支持10 - 30 km的宽覆盖区域。为了应对移动的通信中的各种应用，需要增强和评估传输性能。因此，有必要开发一个实验平台，使发射机和接收机算法的灵活实施。在这方面，我们提出了一个基于软件定义无线电（SDR）的评估平台，使实验室测试的物理层（PHY）的性能高度移动的IEEE 802.22通信系统。使用该平台，可以使用可重新配置的硬件和软件来发送和接收射频信号，其中接收到的基带信号由SDR设备记录和存储。使用基于MATLAB的程序对存储的数据进行后处理，以评估传输性能。基于SDR的评估系统所实现的性能与计算机模拟相似，从而证明了高度移动的IEEE 802.22通信系统的可行性。此外，所提出的评估平台可用于未来的现场实验，以鼓励新的物理层算法的开发和评估。
Wide-area communication systems using TV white space (TVWS) are promising technologies capable of full-coverage and cost-effective vehicular and transportation communications owing to their excellent propagation characteristics. IEEE 802.22 was developed as a TVWS-based fixed communication standard to support a wide coverage area of 10–30 km. To cope with the various applications in mobile communication, the transmission performance needs to be enhanced and evaluated. Thus, it becomes necessary to develop an experimental platform to enable the flexible implementation of transmitter and receiver algorithms. In this regard, we propose a software-defined radio (SDR)-based evaluation platform enabling the bench testing of physical layer (PHY) performance for highly mobile IEEE 802.22 communication systems. Using this platform, radio frequency signals can be transmitted and received using reconfigurable hardware and software, with the received baseband signals being recorded and stored by the SDR device. The stored data were post-processed using a MATLAB-based program to evaluate the transmission performance. The performance achieved by SDR-based evaluation system is similar to computer simulations, thereby demonstrating the feasibility of highly mobile IEEE 802.22 communication systems. Moreover, the proposed evaluation platform is available for future field experiments to encourage the development and evaluation of novel PHY algorithms.