A Perspective on the Impact of Group Delay Dispersion in Future Terahertz Wireless Systems

التفاصيل البيبلوغرافية
العنوان: A Perspective on the Impact of Group Delay Dispersion in Future Terahertz Wireless Systems
المؤلفون: Strecker, Karl, Ekin, Sabit, O'Hara, John F.
سنة النشر: 2024
مصطلحات موضوعية: Electrical Engineering and Systems Science - Signal Processing
الوصف: This article discusses the challenges and opportunities of managing group delay dispersion (GDD) and its relation to the performance standards of future sixth-generation (6G) wireless communication systems utilizing terahertz frequency waves. The unique susceptibilities of 6G systems to GDD are described, along with a quantitative description of the sources of GDD, including multipath, rough surface scattering, intelligent reflecting surfaces, and propagation through the atmosphere. An experimental case-study is presented that confirms previous models quantifying the impact of atmospheric GDD. Several GDD manipulation strategies are presented illustrating their hindered effectiveness in the 6G context. Conversely, some benefits of leveraging GDD to enhance 6G systems, such as improved security and simplified hardware, are also discussed. Finally, a perspective on using photonic GDD control devices is provided, revealing quantitative benefits that may unburden existing equalization schemes. The article argues that GDD will uniquely and significantly impact some 6G systems, but that its careful consideration along with new mitigation strategies, including photonic devices, will help optimize system performance. The conclusion provides a perspective to guide future research in this area.
Comment: 7 pages, 4 figures, 2 tables. This work has been submitted to the IEEE for possible publication
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2405.20107
رقم الأكسشن: edsarx.2405.20107
قاعدة البيانات: arXiv