//www.koonmotors.com/news/matter_energy/telecommunications/ Telecommunications research news. en-us Wed, 06 Sep 2023 14:50:39 EDT Wed, 06 Sep 2023 14:50:39 EDT 60 //www.koonmotors.com/images/scidaily-logo-rss.png//www.koonmotors.com/news/matter_energy/telecommunications/ For more science news, visit ScienceDaily. //www.koonmotors.com/releases/2023/09/230905124913.htm Simultaneous wireless information and power transfer (SWIPT)-aided nonorthogonal multiple access (NOMA) system, used for communication in the Industrial Internet of Things (IIoTs), suffers from significant energy loss with transmission distance. Now, researchers have developed an energy-efficient framework by applying SWIPT-NOMA to a distributed antenna system. This technology is expected to pave the way for more efficient and optimized IoT environments. Tue, 05 Sep 2023 12:49:13 EDT //www.koonmotors.com/releases/2023/09/230905124913.htm //www.koonmotors.com/releases/2023/08/230830130950.htm Quantum physics has allowed for the creation of sensors far surpassing the precision of classical devices. Now, several new studies show that the precision of these quantum sensors can be significantly improved using entanglement produced by finite-range interactions. Researchers were able to demonstrate this enhancement using entangled ion-chains with up to 51 particles. Wed, 30 Aug 2023 13:09:50 EDT //www.koonmotors.com/releases/2023/08/230830130950.htm //www.koonmotors.com/releases/2023/08/230828130356.htm Many songbirds use the earth's magnetic field as a guide during their migrations, but radiowaves interfere with this ability. A new study has found an upper bound for the frequency that disrupts the magnetic compass. Mon, 28 Aug 2023 13:03:56 EDT //www.koonmotors.com/releases/2023/08/230828130356.htm //www.koonmotors.com/releases/2023/08/230824111851.htm Parents are spending considerable amounts of energy thinking about and mitigating the risks associated with their kids using mobile phones and the internet. Thu, 24 Aug 2023 11:18:51 EDT //www.koonmotors.com/releases/2023/08/230824111851.htm //www.koonmotors.com/releases/2023/07/230725123042.htm Fast data transmissions could be delivered in homes and offices through light-emitting diodes (LED) bulbs, complementing existing communication technologies and networks. Tue, 25 Jul 2023 12:30:42 EDT //www.koonmotors.com/releases/2023/07/230725123042.htm //www.koonmotors.com/releases/2023/07/230713192858.htm A new theoretical study provides a framework for understanding nonlocality, a feature that quantum networks must possess to perform operations inaccessible to standard communications technology. By clarifying the concept, researchers determined the conditions necessary to create systems with strong, quantum correlations. Thu, 13 Jul 2023 19:28:58 EDT //www.koonmotors.com/releases/2023/07/230713192858.htm //www.koonmotors.com/releases/2023/05/230530125447.htm An optical fiber about the thickness of a human hair can now carry the equivalent of more than 10 million fast home internet connections running at full capacity. Tue, 30 May 2023 12:54:47 EDT //www.koonmotors.com/releases/2023/05/230530125447.htm //www.koonmotors.com/releases/2023/05/230522131339.htm Researchers found that the Hunga-Tonga eruption was associated with the formation of an equatorial plasma bubble in the ionosphere, a phenomenon associated with disruption of satellite-based communications. Their findings also suggest that a long-held atmospheric model should be revised. Mon, 22 May 2023 13:13:39 EDT //www.koonmotors.com/releases/2023/05/230522131339.htm //www.koonmotors.com/releases/2023/05/230508114011.htm Researchers have developed a new class of integrated photonic devices -- 'leaky-wave metasurfaces' -- that convert light initially confined in an optical waveguide to an arbitrary optical pattern in free space. These are the first to demonstrate simultaneous control of all four optical degrees of freedom. Because they're so thin, transparent, and compatible with photonic integrated circuits, they can be used to improve optical displays, LIDAR, optical communications, and quantum optics. Mon, 08 May 2023 11:40:11 EDT //www.koonmotors.com/releases/2023/05/230508114011.htm //www.koonmotors.com/releases/2023/04/230419095523.htm Researchers report having achieved quantum teleportation from a photon to a solid-state qubit over a distance of 1km, with a novel approach using multiplexed quantum memories. Wed, 19 Apr 2023 09:55:23 EDT //www.koonmotors.com/releases/2023/04/230419095523.htm //www.koonmotors.com/releases/2023/04/230411150515.htm Researchers have developed a new chip-sized microwave photonic filter to separate communication signals from noise and suppress unwanted interference across the full radio frequency spectrum. The device is expected to help next-generation wireless communication technologies efficiently convey data in an environment that is becoming crowded with signals. Tue, 11 Apr 2023 15:05:15 EDT //www.koonmotors.com/releases/2023/04/230411150515.htm //www.koonmotors.com/releases/2023/03/230303105239.htm It's happened to anyone with a cell phone -- dropped calls or dead air because suddenly there is no service available. Or worse, the location pin drops on the navigation app. Researchers are looking at ways to improve cell phone connectivity and localization abilities by examining 'smart' surfaces that can bounce signals from a tower to customers to improve the link. A smart surface involves installing reflective elements on windows or panels on buildings in dense urban environments. Fri, 03 Mar 2023 10:52:39 EST //www.koonmotors.com/releases/2023/03/230303105239.htm //www.koonmotors.com/releases/2023/02/230223132901.htm In the very near future, quantum computers are expected to revolutionize the way we compute, with new approaches to database searches, AI systems, simulations and more. But to achieve such novel quantum technology applications, photonic integrated circuits which can effectively control photonic quantum states -- the so-called qubits -- are needed. Physicists have made a breakthrough in this effort: for the first time, they demonstrated the controlled creation of single-photon emitters in silicon at the nanoscale. Thu, 23 Feb 2023 13:29:01 EST //www.koonmotors.com/releases/2023/02/230223132901.htm //www.koonmotors.com/releases/2023/02/230222115948.htm 想象你可以打开冰箱,打开一个应用程序在your phone and immediately know which items are expiring within a few days. This is one of the applications that a new technology would enable. Wed, 22 Feb 2023 11:59:48 EST //www.koonmotors.com/releases/2023/02/230222115948.htm //www.koonmotors.com/releases/2023/02/230217103932.htm EPFL researchers have come up with a new approach to electronics that involves engineering metastructures at the sub-wavelength scale. It could launch the next generation of ultra-fast devices for exchanging massive amounts of data, with applications in 6G communications and beyond. Fri, 17 Feb 2023 10:39:32 EST //www.koonmotors.com/releases/2023/02/230217103932.htm //www.koonmotors.com/releases/2023/02/230215143644.htm Researchers propose a new approach to making qubits, the basic units in quantum computing, and controlling them to read and write data. The method is based on measuring and controlling the spins of atomic nuclei, using beams of light from two lasers of slightly different colors. Wed, 15 Feb 2023 14:36:44 EST //www.koonmotors.com/releases/2023/02/230215143644.htm //www.koonmotors.com/releases/2023/02/230202135750.htm Trapped ions have previously only been entangled in one and the same laboratory. Now, teams have entangled two ions over a distance of 230 meters. The nodes of this network were housed in two labs at the Campus Technik to the west of Innsbruck, Austria. The experiment shows that trapped ions are a promising platform for future quantum networks that span cities and eventually continents. Thu, 02 Feb 2023 13:57:50 EST //www.koonmotors.com/releases/2023/02/230202135750.htm //www.koonmotors.com/releases/2023/01/230110150806.htm An optical fiber that uses the mathematical concept of topology to remain robust, thereby guaranteeing the high-speed transfer of information, has been created by physicists. Tue, 10 Jan 2023 15:08:06 EST //www.koonmotors.com/releases/2023/01/230110150806.htm //www.koonmotors.com/releases/2022/12/221222100959.htm An ultra-wide-band receiver based on a harmonic selection technique to improve the operational bandwidth of 5G networks has been developed. Fifth generation (5G) mobile networks are now being used worldwide with frequencies of over 100 Hz. To keep up with the data traffic in these networks, appropriate receivers are necessary. In this regard, the proposed technology could revolutionize the world of next-generation communications. Thu, 22 Dec 2022 10:09:59 EST //www.koonmotors.com/releases/2022/12/221222100959.htm //www.koonmotors.com/releases/2022/12/221209153105.htm Scientists have demonstrated new laser systems for deep-space optical communication. Fri, 09 Dec 2022 15:31:05 EST //www.koonmotors.com/releases/2022/12/221209153105.htm //www.koonmotors.com/releases/2022/11/221129112815.htm A new technique greatly reduces the error in an optical neural network, which uses light to process data instead of electrical signals. With their technique, the larger an optical neural network becomes, the lower the error in its computations. This could enable them to scale these devices up so they would be large enough for commercial uses. Tue, 29 Nov 2022 11:28:15 EST //www.koonmotors.com/releases/2022/11/221129112815.htm //www.koonmotors.com/releases/2022/11/221123114228.htm Researchers have developed a method that allows the water level of rivers to be monitored around the clock. The cost-effective sensor is for instance suitable for area-wide flood warning systems. Wed, 23 Nov 2022 11:42:28 EST //www.koonmotors.com/releases/2022/11/221123114228.htm //www.koonmotors.com/releases/2022/11/221116113115.htm Researchers have developed an alternative positioning system that is more robust and accurate than GPS, especially in urban settings. The working prototype that demonstrated this new mobile network infrastructure achieved an accuracy of 10 centimeter. This new technology is important for the implementation of a range of location-based applications, including automated vehicles, quantum communication and next-generation mobile communication systems. Wed, 16 Nov 2022 11:31:15 EST //www.koonmotors.com/releases/2022/11/221116113115.htm //www.koonmotors.com/releases/2022/11/221109124259.htm Researchers have found a way to avoid the need to use radio transmitters in critical communications, using new technology featuring super-fast optical lasers. Wed, 09 Nov 2022 12:42:59 EST //www.koonmotors.com/releases/2022/11/221109124259.htm //www.koonmotors.com/releases/2022/10/221031134013.htm Scientists have managed for the first time to create a unidirectional device that significantly increases the quality of a special class of transmitted signals in optical communications: optical vortices. By transmitting selective optical vortex modes exclusively unidirectionally, the developed device largely reduces detrimental backscattering to a minimum. The scientists emphasize the great practical utility of their discovery in many optical systems, with applications ranging from mode division multiplexed communications, optical tweezers, vortex lasers to quantum manipulation systems. Mon, 31 Oct 2022 13:40:13 EDT //www.koonmotors.com/releases/2022/10/221031134013.htm //www.koonmotors.com/releases/2022/10/221013145636.htm Using existing experimental and computational resources, a multi-institutional team has developed an effective method for measuring high-dimensional qudits encoded in quantum frequency combs, which are a type of photon source, on a single optical chip. Thu, 13 Oct 2022 14:56:36 EDT //www.koonmotors.com/releases/2022/10/221013145636.htm //www.koonmotors.com/releases/2022/10/221007111304.htm Scientists have developed a possible solution to one of the biggest problems of the Internet of Energy, energy efficiency. They did so by creating a controller that has a sleep mode and only procures energy when needed. Fri, 07 Oct 2022 11:13:04 EDT //www.koonmotors.com/releases/2022/10/221007111304.htm //www.koonmotors.com/releases/2022/09/220914102256.htm A team has developed a novel approach for comparing neural networks that looks within the 'black box' of artificial intelligence to help researchers understand neural network behavior. Neural networks recognize patterns in datasets; they are used everywhere in society, in applications such as virtual assistants, facial recognition systems and self-driving cars. Wed, 14 Sep 2022 10:22:56 EDT //www.koonmotors.com/releases/2022/09/220914102256.htm //www.koonmotors.com/releases/2022/08/220830131633.htm 研究人员描述了一种新的无线激光充电system that overcomes some of the challenges that have hindered previous attempts to develop safe and convenient on-the-go charging systems. With further development, the system could charge mobile devices like phones and laptops at 30 m distances. Tue, 30 Aug 2022 13:16:33 EDT //www.koonmotors.com/releases/2022/08/220830131633.htm //www.koonmotors.com/releases/2022/08/220824120825.htm Someone taps your shoulder. The organized touch receptors in your skin send a message to your brain, which processes the information and directs you to look left, in the direction of the tap. Now, researchers have harnessed this processing of mechanical information and integrated it into engineered materials that 'think'. Wed, 24 Aug 2022 12:08:25 EDT //www.koonmotors.com/releases/2022/08/220824120825.htm //www.koonmotors.com/releases/2022/08/220822130233.htm Researchers have used an atomically thin material to build a device that can change the color of laser beams. Their microscopic device -- a fraction of the size of conventional color converters -- may yield new kinds of ultra-small optical circuit chips and advance quantum optics. Mon, 22 Aug 2022 13:02:33 EDT //www.koonmotors.com/releases/2022/08/220822130233.htm //www.koonmotors.com/releases/2022/08/220818102732.htm Researchers report an experimental demonstration of a space-to-ground quantum key distribution (QKD) network using a compact QKD terminal aboard the Chinese Space Lab Tiangong-2 and four ground stations. The demonstration represents an important step toward practical QKD based on constellations of small satellites, a setup considered one of the most promising routes to creating a global quantum communication network. Thu, 18 Aug 2022 10:27:32 EDT //www.koonmotors.com/releases/2022/08/220818102732.htm //www.koonmotors.com/releases/2022/08/220810123646.htm Researchers have solved a major stumbling block in the development of portable atomic clocks, by working out how to reliably switch 'on' their counting device -- and keep them running. Wed, 10 Aug 2022 12:36:46 EDT //www.koonmotors.com/releases/2022/08/220810123646.htm //www.koonmotors.com/releases/2022/08/220809101802.htm Managers need to make a consistent impression in order to motivate and inspire people, and that applies even more to video communication than to other digital channels. Researchers investigated the influence that charismatic leadership tactics used in text, audio and video communication channels have on employee performance. They focused on mobile work and the gig economy, in which jobs are flexibly assigned to freelancers via online platforms. Tue, 09 Aug 2022 10:18:02 EDT //www.koonmotors.com/releases/2022/08/220809101802.htm //www.koonmotors.com/releases/2022/07/220729173217.htm A roadmap for the future direction of quantum simulation. Fri, 29 Jul 2022 17:32:17 EDT //www.koonmotors.com/releases/2022/07/220729173217.htm //www.koonmotors.com/releases/2022/07/220727124101.htm An international team has successfully implemented an advanced form of quantum cryptography for the first time. Moreover, encryption is independent of the quantum device used and therefore even more secure against hacking attempts. Wed, 27 Jul 2022 12:41:01 EDT //www.koonmotors.com/releases/2022/07/220727124101.htm //www.koonmotors.com/releases/2022/07/220713114553.htm Researchers have made a crucial breakthrough in the development of quantum technology. Their research describes their observations of over 150,000 silicon 'T center' photon-spin qubits, an important milestone that unlocks immediate opportunities to construct massively scalable quantum computers and the quantum internet that will connect them. Wed, 13 Jul 2022 11:45:53 EDT //www.koonmotors.com/releases/2022/07/220713114553.htm //www.koonmotors.com/releases/2022/07/220711111843.htm Researchers report the demonstration of entanglement between a fiber-integrated quantum memory and a telecommunications-wavelength photon. Mon, 11 Jul 2022 11:18:43 EDT //www.koonmotors.com/releases/2022/07/220711111843.htm //www.koonmotors.com/releases/2022/07/220707100920.htm Researchers have entangled two quantum memories over a 33-kilometer-long fiber optic connection -- a record and an important step toward the quantum internet. Thu, 07 Jul 2022 10:09:20 EDT //www.koonmotors.com/releases/2022/07/220707100920.htm //www.koonmotors.com/releases/2022/06/220613111942.htm Scientists have used computer modelling to optimize the design of an electromagnetic energy harvester to power wireless sensor networks for the Internet of Things. Mon, 13 Jun 2022 11:19:42 EDT //www.koonmotors.com/releases/2022/06/220613111942.htm //www.koonmotors.com/releases/2022/06/220609131903.htm 研究人员开发硅基光communications link that can improve data-intensive internet applications from video streaming services to high-capacity transactions for the stock market. This device could enable the next generation of optical interconnects for use in data-center networks that form the backbone of the internet. Thu, 09 Jun 2022 13:19:03 EDT //www.koonmotors.com/releases/2022/06/220609131903.htm //www.koonmotors.com/releases/2022/06/220608161407.htm A team of engineers has demonstrated for the first time that the Bluetooth signals emitted constantly by our mobile phones have a unique fingerprint that can be used to track individuals' movements. Wed, 08 Jun 2022 16:14:07 EDT //www.koonmotors.com/releases/2022/06/220608161407.htm //www.koonmotors.com/releases/2022/06/220607120950.htm Researchers have improved the coherence time of a previously developed quantum membrane dramatically. The improvement will expand the usability of the membrane for a variety of different purposes. With a coherence time of one hundred milliseconds, the membrane can for example store sensitive quantum information for further processing in a quantum computer or network. Tue, 07 Jun 2022 12:09:50 EDT //www.koonmotors.com/releases/2022/06/220607120950.htm //www.koonmotors.com/releases/2022/06/220603155428.htm Researchers have revealed a new beam-steering antenna that increases the efficiency of data transmission, and opens up frequencies for mobile communications that are inaccessible to currently used technologies. The technology has demonstrated vast improvements in data transmission efficiency at frequencies ranging across the millimeter wave spectrum, specifically those identified for 5G (mmWave) and 6G, where high efficiency is currently only achievable using slow, mechanically steered antenna solutions. Fri, 03 Jun 2022 15:54:28 EDT //www.koonmotors.com/releases/2022/06/220603155428.htm //www.koonmotors.com/releases/2022/06/220602132309.htm An international team led by researchers has developed 6G components that will allow future devices to achieve increased speeds necessary for such a technological jump. Thu, 02 Jun 2022 13:23:09 EDT //www.koonmotors.com/releases/2022/06/220602132309.htm //www.koonmotors.com/releases/2022/05/220525131156.htm Researchers have succeeded in teleporting quantum information across a rudimentary network. This first of its kind is an important step towards a future quantum Internet. This breakthrough was made possible by a greatly improved quantum memory and enhanced quality of the quantum links between the three nodes of the network. Wed, 25 May 2022 13:11:56 EDT //www.koonmotors.com/releases/2022/05/220525131156.htm //www.koonmotors.com/releases/2022/05/220525102940.htm While quantum computers offer many novel possibilities, they also pose a threat to internet security since these supercomputers make common encryption methods vulnerable. Based on the so-called quantum key distribution, researchers have developed a new, tap-proof communication network. Wed, 25 May 2022 10:29:40 EDT //www.koonmotors.com/releases/2022/05/220525102940.htm //www.koonmotors.com/releases/2022/05/220519150136.htm Engineers have developed a low cost, low power technology to help robots accurately map their way indoors, even in poor lighting and without recognizable landmarks or features. The technology uses WiFi signals, instead of light, to help the robot 'see' where it's going. Thu, 19 May 2022 15:01:36 EDT //www.koonmotors.com/releases/2022/05/220519150136.htm //www.koonmotors.com/releases/2022/05/220516104638.htm Crafty hackers can make a tool to eavesdrop on some 6G wireless signals in as little as five minutes using office paper, an inkjet printer, a metallic foil transfer and a laminator. Mon, 16 May 2022 10:46:38 EDT //www.koonmotors.com/releases/2022/05/220516104638.htm //www.koonmotors.com/releases/2022/04/220412161603.htm Researchers have successfully generated strongly nonclassical light using a modular waveguide-based light source. By combining a waveguide optical parametric amplifier (OPA) module created for quantum experiments and a specially designed photon detector, researchers were able to produce light in a superposition of coherent states. The achievement represents a crucial step toward creating faster and more practical optical quantum computers. Tue, 12 Apr 2022 16:16:03 EDT //www.koonmotors.com/releases/2022/04/220412161603.htm //www.koonmotors.com/releases/2022/04/220408113955.htm Researchers have developed a fully integrated high-power laser on a lithium niobate chip, paving the way for high-powered telecommunication systems, fully integrated spectrometers, optical remote sensing, and efficient frequency conversion for quantum networks, among other applications. Fri, 08 Apr 2022 11:39:55 EDT //www.koonmotors.com/releases/2022/04/220408113955.htm //www.koonmotors.com/releases/2022/04/220407141943.htm Sensors are a pillar of the Internet of Things, providing the data to control all sorts of objects. Here, precision is essential, and this is where quantum technologies could make a difference. Researchers are now demonstrating how nanoparticles in tiny optical resonators can be transferred into quantum regime and used as high-precision sensors. Thu, 07 Apr 2022 14:19:43 EDT //www.koonmotors.com/releases/2022/04/220407141943.htm //www.koonmotors.com/releases/2022/04/220401160539.htm 5G+ (5G/Beyond 5G) is the fastest-growing segment and the only significant opportunity for investment growth in the wireless network infrastructure market, according to the latest forecast. But currently 5G+ technologies rely on large antenna arrays that are typically bulky and come only in very limited sizes, making them difficult to transport and expensive to customize. Researchers have now developed a novel and flexible solution to address the problem. Fri, 01 Apr 2022 16:05:39 EDT //www.koonmotors.com/releases/2022/04/220401160539.htm //www.koonmotors.com/releases/2022/03/220324104549.htm Researchers have developed a new analog photonic correlator that can be used to locate an object transmitting a radio signal. They demonstrated its ability to identify the location of a radio frequency transmitter, working faster than other methods. The device is considerably simpler than today's analog or digital correlators and uses off-the-shelf telecommunications components to process a wide range of radio frequency signals in cell phones, signal jammers, and more. Thu, 24 Mar 2022 10:45:49 EDT //www.koonmotors.com/releases/2022/03/220324104549.htm //www.koonmotors.com/releases/2022/03/220322111258.htm Computers, smartphones, GPS: quantum physics has enabled many technological advances. It is now opening up new fields of research in cryptography (the art of coding messages) with the aim of developing ultra-secure telecommunications networks. There is one obstacle, however: after a few hundred kilometers within an optical fiber, the photons that carry the qubits or 'quantum bits' (the information) disappear. They therefore need 'repeaters', a kind of 'relay', which are partly based on a quantum memory. By managing to store a qubit in a crystal (a 'memory') for 20 milliseconds, a team has now taken a major step towards the development of long-distance quantum telecommunications networks. Tue, 22 Mar 2022 11:12:58 EDT //www.koonmotors.com/releases/2022/03/220322111258.htm //www.koonmotors.com/releases/2022/02/220228114425.htm Researchers report that lab tests of a new metasurface-based antenna that can harvest 100 microwatts of power, enough to power simple devices, from low power radio waves. This represents an important step toward making it practical to harvest energy from radio waves, such as the ones used in cell phone networks or Bluetooth connections. Mon, 28 Feb 2022 11:44:25 EST //www.koonmotors.com/releases/2022/02/220228114425.htm //www.koonmotors.com/releases/2022/02/220218153026.htm New applications in energy, defense and telecommunications could receive a boost after a team created a new type of 'nanocrystal gel' -- a gel composed of tiny nanocrystals each 10,000 times smaller than the width of a human hair that are linked together into an organized network. Fri, 18 Feb 2022 15:30:26 EST //www.koonmotors.com/releases/2022/02/220218153026.htm //www.koonmotors.com/releases/2022/02/220217141249.htm Data stored in spin states of ytterbium atoms can be transferred to surrounding atoms in a crystal matrix. Thu, 17 Feb 2022 14:12:49 EST //www.koonmotors.com/releases/2022/02/220217141249.htm //www.koonmotors.com/releases/2022/02/220210084948.htm A new study found that measuring the time it takes for a radar pulse to travel from a satellite to the sea surface and back again can reveal the thickness of river ice and dates when it is safe to travel on ice roads and bridges in Arctic regions. 星期四,在美国东部时间2022年2月10 08:49:48 //www.koonmotors.com/releases/2022/02/220210084948.htm //www.koonmotors.com/releases/2022/02/220202111750.htm Scientists have demonstrated a technique for the recovery of weak, noise-dominated optical signals. Wed, 02 Feb 2022 11:17:50 EST //www.koonmotors.com/releases/2022/02/220202111750.htm