research-article

RF-Diffusion: Radio Signal Generation via Time-Frequency Diffusion

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Tony Xiao HanAuthors Info & Claims

ACM MobiCom '24: Proceedings of the 30th Annual International Conference on Mobile Computing and Networking

Pages 77 - 92

https://doi.org/10.1145/3636534.3649348

Published: 29 May 2024 Publication History

Abstract

Along with AIGC shines in CV and NLP, its potential in the wireless domain has also emerged in recent years. Yet, existing RF-oriented generative solutions are ill-suited for generating high-quality, time-series RF data due to limited representation capabilities. In this work, inspired by the stellar achievements of the diffusion model in CV and NLP, we adapt it to the RF domain and propose RF-Diffusion. To accommodate the unique characteristics of RF signals, we first introduce a novel Time-Frequency Diffusion theory to enhance the original diffusion model, enabling it to tap into the information within the time, frequency, and complex-valued domains of RF signals. On this basis, we propose a Hierarchical Diffusion Transformer to translate the theory into a practical generative DNN through elaborated design spanning network architecture, functional block, and complex-valued operator, making RF-Diffusion a versatile solution to generate diverse, high-quality, and time-series RF data. Performance comparison with three prevalent generative models demonstrates the RF-Diffusion's superior performance in synthesizing Wi-Fi and FMCW signals. We also showcase the versatility of RF-Diffusion in boosting Wi-Fi sensing systems and performing channel estimation in 5G networks.

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Cited By

Zhu HDong EXu MLv HWu F(2024)Commodity Wi-Fi-Based Wireless Sensing Advancements over the Past Five YearsSensors10.3390/s2422719524:22(7195)Online publication date: 10-Nov-2024
https://doi.org/10.3390/s24227195
Nguyen QLukito WLiu XLiu C(2024)Deep Learning-Empowered RF Sensing in Outdoor Environments: Recent Advances, Challenges, and Future DirectionsElectronics10.3390/electronics1401012514:1(125)Online publication date: 31-Dec-2024
https://doi.org/10.3390/electronics14010125
Siam SAhn HLiu LAlam SShen HCao ZShroff NKrishnamachari BSrivastava MZhang M(2024)Artificial Intelligence of Things: A SurveyACM Transactions on Sensor Networks10.1145/369063921:1(1-75)Online publication date: 30-Aug-2024
https://dl.acm.org/doi/10.1145/3690639
Show More Cited By

Index Terms

RF-Diffusion: Radio Signal Generation via Time-Frequency Diffusion
1. Human-centered computing
  1. Ubiquitous and mobile computing
2. Networks
  1. Network types
    1. Mobile networks

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ACM MobiCom '24: Proceedings of the 30th Annual International Conference on Mobile Computing and Networking

December 2024

2476 pages

ISBN:9798400704895

DOI:10.1145/3636534

Chair:
Weisong Shi,
Program Chairs:
Deepak Ganesan,
Nicholas Lane

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Published: 29 May 2024

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Cited By

Zhu HDong EXu MLv HWu F(2024)Commodity Wi-Fi-Based Wireless Sensing Advancements over the Past Five YearsSensors10.3390/s2422719524:22(7195)Online publication date: 10-Nov-2024
https://doi.org/10.3390/s24227195
Nguyen QLukito WLiu XLiu C(2024)Deep Learning-Empowered RF Sensing in Outdoor Environments: Recent Advances, Challenges, and Future DirectionsElectronics10.3390/electronics1401012514:1(125)Online publication date: 31-Dec-2024
https://doi.org/10.3390/electronics14010125
Siam SAhn HLiu LAlam SShen HCao ZShroff NKrishnamachari BSrivastava MZhang M(2024)Artificial Intelligence of Things: A SurveyACM Transactions on Sensor Networks10.1145/369063921:1(1-75)Online publication date: 30-Aug-2024
https://dl.acm.org/doi/10.1145/3690639
Zhao LLyu RLei HLin QZhou AMa HWang JMeng XShao CTang YChi GYang Z(2024)AirECG: Contactless Electrocardiogram for Cardiac Disease Monitoring via mmWave Sensing and Cross-domain Diffusion ModelProceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies10.1145/36785508:3(1-27)Online publication date: 9-Sep-2024
https://dl.acm.org/doi/10.1145/3678550
Hou WWu C(2024)RFBoost: Understanding and Boosting Deep WiFi Sensing via Physical Data AugmentationProceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies10.1145/36596208:2(1-26)Online publication date: 15-May-2024
https://dl.acm.org/doi/10.1145/3659620
Chi GZhang GDing XMa QYang ZDu ZXiao HLiu Z(2024)XFall: Domain Adaptive Wi-Fi-Based Fall Detection With Cross-Modal SupervisionIEEE Journal on Selected Areas in Communications10.1109/JSAC.2024.341399742:9(2457-2471)Online publication date: Sep-2024
https://doi.org/10.1109/JSAC.2024.3413997
Ji SLian LZheng YWu C(2024)MuSAC: Mutualistic Sensing and Communication for Mobile Crowdsensing2024 IEEE 44th International Conference on Distributed Computing Systems (ICDCS)10.1109/ICDCS60910.2024.00031(243-254)Online publication date: 23-Jul-2024
https://doi.org/10.1109/ICDCS60910.2024.00031

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