OpenAirLink：使用软件定义无线电实现可复现的无线信道仿真
OpenAirLink: Reproducible Wireless Channel Emulation using Software Defined Radios
AI总结：
本研究提出基于现成SDR与FPGA实现的开源无线信道仿真器OpenAirLink，可实时调整路径损耗与传播时延，无需高性能硬件，为科研界提供低成本的可复现无线实验方案。
摘要：
本文提出了OpenAirLink（OAL），一款用于无线场景可复现测试的开源信道仿真器。OAL基于现成的软件定义无线电（SDR）实现，是昂贵商用信道仿真器的小型化替代方案。路径损耗与传播时延是无线信道仿真的核心要素，OAL提供了一种可实时调整这些参数的简便方法。该仿真器采用有限冲激响应（FIR）滤波器实现，FIR滤波器以Verilog语言编写并烧录至SDR的现场可编程门阵列（FPGA）中。由于大部分处理在FPGA上完成，OAL无需高性能计算硬件与高端SDR设备。我们通过两个示例验证了OAL的性能，并展示了这类信道仿真工具的实用性。我们认为，像OAL这样的开源信道仿真器能够让科研界的众多研究人员开展可复现的无线实验。
英文摘要：
This paper presents OpenAirLink(OAL), an open-source channel emulator for reproducible testing of wireless scenarios. OAL is implemented on off-the-shelf software-defined radios (SDR) and presents a smaller-scale alternative to expensive commercially available channel emulators. Path loss and propagation delay are the fundamental aspects of emulating a wireless channel. OAL provides a simple method to change these aspects in real-time. The emulator is implemented using a finite impulse response (FIR) filter. The FIR filter is written in Verilog and flashed on the SDRs Field Programmable Gate Array (FPGA). Most processing transpires on the FPGA, so OAL does not require high-performance computing hardware and SDRs. We validate the performance of OAL and demonstrate the utility of such a channel emulation tool using two examples. We believe that open-source channel emulators such as OAL can make reproducible wireless experiments accessible to many researchers in the scientific community.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
