发表机构
EURECOM（欧洲通信学院）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
SL-RFSIM扩展OpenAirInterface，通过代理架构和BATMAN-adv实现可扩展多跳5G NR Sidelink网状网络，经实验验证并识别瓶颈。
AI 中文摘要
近期3GPP版本已将5G新无线电（NR）Sidelink（SL）扩展以支持设备到设备（D2D）中继和多跳能力。本文提出SL-RFSIM，一个基于组件的实验框架，通过可扩展的多跳NR SL能力扩展OpenAirInterface（OAI）。SL-RFSIM用基于代理的发布/订阅架构替换传统OAI射频模拟器，实现任意点对点连接，同时保持与OAI协议栈的兼容性。该框架进一步集成可插拔的移动性、传播、接收和监控服务，并通过BATMAN-adv支持第2层网状网络。在SLICES-RI研究基础设施上的实验评估通过代表性网状网络场景验证了所提架构，并识别了当前限制可扩展性的软件瓶颈。SL-RFSIM为5G NR SL及未来多跳蜂窝网状网络的可复现实验研究提供了开源基础。
英文摘要
Recent 3GPP releases have extended 5G New Radio (NR) Sidelink (SL) to support device-to-device (D2D) relay and multi-hop capabilities. This paper presents SL-RFSIM, a component-based experimentation framework extending OpenAirInterface (OAI) with scalable multi-hop NR SL capabilities. SL-RFSIM replaces the legacy OAI RF simulator with a broker-based publish/subscribe architecture enabling arbitrary peer-to-peer connectivity while preserving compatibility with the OAI protocol stack. The framework further integrates pluggable mobility, propagation, reception, and monitoring services, and supports Layer-2 mesh networking through BATMAN-adv. Experimental evaluation on the SLICES-RI research infrastructure validates the proposed architecture through representative mesh networking scenarios and identifies the current software bottlenecks limiting scalability. SL-RFSIM provides an open-source foundation for reproducible experimental research on 5G NR SL and future multi-hop cellular mesh networks.
