Researchers from the Smart and Wireless Applications and Technologies Group (SWAT-UGR) have conducted two scientific studies aimed at answering a common question: understanding how electromagnetic waves propagate in the medium.
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Researchers at Tohoku university have addressed one of the key challenges of electromagnetic waves in the terahertz frequency range by developing a new type of tuneable filter for signals in the terahertz wave band. #TerahertzWaves #6G #CommunicationTechnologies #TohokuUniversity
Tuning a Terahertz Wave Filter
tohoku.ac.jp
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Curving Terahertz Signals Around Obstacles For 6G The first curved THz data link could boost faster data networks beyond 5G One major problem terahertz signals face is how they can be blocked by most solid objects. This means that, unlike Wi-Fi, terahertz signals generally require a direct line of sight between transmitters and receivers. In the new study, researchers at Brown University in Providence, R.I., and Rice University in Houston sought to avoid this problem by creating terahertz signals that follow a curved trajectory around obstacles, instead of getting blocked by them. https://lnkd.in/gDKbUVj5?
Curving Terahertz Signals Around Obstacles For 6G
spectrum.ieee.org
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📢 Delighted to share our new preprint "Antenna Selection with Beam Squint Compensation for Integrated Sensing and Communications (#ISAC)"! In this work, we address the intricate complexities associated with high cost, power consumption, and the 'beam-squint' phenomenon inherent in hybrid beamforming #THz-#ISAC systems. 🔎Our work introduces an innovative sparse array architecture for #THz-#ISAC, presenting an in-depth analysis of the antenna selection problem under the influence of beam squint and provide a manifold optimization approach for hybrid beamforming design. The novel algorithms we developed harness grouped subarrays, quantized performance metrics, and sequential optimization to curtail computational and memory costs. 📈Perhaps the most captivating aspect of our work? Proposed approach enables a significant reduction in subarray configurations, empowering a #DNN with a classification model to accurately perform antenna selection. Our numerical simulations exhibit a 95% lower complexity for large antenna arrays, with only about a 6% loss in the achievable rate. 👨🔬🧑🔬This work was led by Ahmet M. Elbir and co-authored with Asmaa Abdallah and Ahmed Eltawil. 🏛️KAUST CEMSE KAUST (King Abdullah University of Science and Technology) 🔗 Link: https://lnkd.in/di86FyYp #6GNetworks #5g #radar #sensing #remote #WirelessNetworks IEEE Communications Society IEEE Computer Society IEEE Xplore IEEE ComSoc Young Professionals IEEE Access Proceedings of the IEEE IEEE The Institute
(PDF) Antenna Selection With Beam Squint Compensation for Integrated Sensing and Communications
researchgate.net
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#SdD #6G ... #Curio 《The future of cellular data transfer could lie in ➡️"curving" light beams midair to deliver 6G wireless networks with blazing-fast speeds — 🤔 bypassing the need for ➡️line of sight between transmitter and receivers. In a new study published March 30 in the journal Nature's Communications Engineering, researchers explained how they developed a transmitter that can ✔dynamically ✔adjust the ✔waves needed to support future 6G signals. (...)》 🤔... 😮 Ref Guerboukha, H., Zhao, B., Fang, Z. et al. Curving THz wireless data links around obstacles. Commun Eng 3, 58 (2024). https://lnkd.in/dxyhg5Gg | LiveScience https://lnkd.in/dPWtKkc9
Scientists could make blazing-fast 6G using curving light rays
livescience.com
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📣 Another #ISAC paper, entitled "Antenna Selection with Beam Squint Compensation for Integrated Sensing and Communications," has been accepted for publication in IEEE J. Selected Topics in Signal Processing! 🔍This work dives into the #THz-band Integrated Sensing and Communications (ISAC), where we enjoy abundant bandwidth, ultra-low latency, seamless connectivity, and more importantly impressive sensing precision. Despite the allure, THz transceivers come with the beam-squint hurdles that occur when a singular analog beamformer is used across different subcarriers. The beam squint causes variations in beam direction and drastically degrades sensing and communication efficiency as the beams get narrower. 💡 To tame the beam squint ramifications, we've developed a sparse array architecture optimized for #THz-#ISAC systems. By employing hybrid beamforming and introducing a manifold optimization approach, we navigate the antenna selection dilemma posed by beam squint. Our methodologies—leveraging grouped subarrays, quantized metrics, and sequential optimization—simplify the antenna selection process. Through a combination of these techniques and the power of #deeplearning, we've managed to craft a solution that dramatically lowers computational complexity and memory demands. 📊 The results? Numerical simulations show that the proposed approach exhibits up to 95% lower complexity for large antenna arrays while maintaining satisfactory communications with approximately 6% loss in the achievable rate. 👨🔬👩🔬 Ahmet M. Elbir, Asmaa Abdallah, Ph.D, Abdulkadir Çelik, and Ahmed Eltawil 🏛KAUST (King Abdullah University of Science and Technology) KAUST CEMSE #MIMO #beamforming #RFchains #hybrid #radar #fmcw #multimodal #sensing #communications #dual #functional #radarsystems #radartechnology #remotesensing #5g #6g #beyond5g #mmwave #THz #localization #tracking #beamsquint #antenna IEEE Communications Society IEEE Computer Society IEEE Xplore IEEE Xplore IEEE Access IEEE The Institute IEEE ComSoc Young Professionals IEEE Young Professionals IEEE The Institute IEEE Signal Processing Society IEEE Signal Processing Magazine
(PDF) Antenna Selection With Beam Squint Compensation for Integrated Sensing and Communications
researchgate.net
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Experiments generate quantum entanglement over optical fibres across three real cities, marking progress towards networks that could have revolutionary applications. https://lnkd.in/gJnpTkpz
‘Quantum internet’ demonstration in cities is most advanced yet
nature.com
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We have developed a radio wave propagation simulator named Kyoto University Channel Generator (KUCG) for the millimeter wave (60 GHz) and sub-terahertz (sub-THz, 95 and 105 GHz) bands. The developed simulator can iteratively generate samples of radio propagation characteristics that are statistically consistent with the results of sub-THz band propagation measurement tests conducted by the research group. This allows anyone to evaluate the transmission characteristics of various millimeter and sub-THz wireless systems using only a computer, without conducting actual field tests. The press release is shown in the following link. https://lnkd.in/gXuixrPH
Sub-THz propagation channel simulator for 6th-gen mobile communication systems R&D
dco.cce.i.kyoto-u.ac.jp
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Big news: we broke the 1 terabit per second (Tbps) barrier! Thanks to Keysight’s help, researchers have achieved record-breaking throughput using terahertz frequencies. ⬇️ Why does it matter? Because 6G targets 10x faster data throughput compared to 5G, reaching up to 1 Tbps—a speed that will allow for use cases such as holographic communications and extended reality experiences.
Keysight Helps Researchers to Achieve 1 Tbps Throughput Using Terahertz Frequencies
everythingrf.com
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Quantum sensing's ability to measure physical change at the atomic level could break new ground in medicine, telecommunications and beyond. https://cogniz.at/3UZUzDS
Soon, we’ll all feel the effects of quantum sensing
cognizant.com
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Quantum sensing's ability to measure physical change at the atomic level could break new ground in medicine, telecommunications and beyond. https://cogniz.at/4asghoQ
Soon, we’ll all feel the effects of quantum sensing
cognizant.com
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