Research on gigabit wireless communications has been presented by researchers from the University of Bristol at the world's leading wireless communications and networking conference, IEEE WCNC 2014, in Turkey earlier this week [Monday 6 to Wednesday 9 April].
The two research papers, led by Andrew Nix, Professor of Wireless Communication Systems and Dr Simon Armour, Senior Lecturer in Software Radio, from the University's Communication Systems and Networks research group in the Department of Electrical and Electronic Engineering, could have significant implications for the future of mobile devices.
The millimetre-wave band (58-63GHz) is seen as a perfect candidate for short-range gigabit wireless communications. These networks are envisaged to satisfy the demands of future data-rate hungry applications but few studies have analysed the potential of frequency reuse at 60GHz.
The first paper on gigabit wireless communications could radically enhance the wireless capabilities of future mobile phones and tablets. The research looked at enhanced technologies and algorithms to increase the data capacity and densification of short range wireless networks. The work showed that polarimetric filtering can enable a higher density of active data links. Each millimetre wave link is capable of supporting user rates of up to 7Gbps, with Bristol's research showing that four simultaneous links could be active in a single room. These data capacities are 100x better than those achieved with current Wi-Fi technologies.
The demand for data access by mobile users is doubling every year and is predicted to continue into the foreseeable future. This is pushing service providers to deploy denser networks. Also, since the frequency bands used by 3G and 4G services are close to their capacity limits, there is considerable interest in the use of millimetre wave frequencies for 5G cellular networks.
The second paper considered beamforming as a solution to provide multi-gigabit connections between the 4G and 5G cellular base stations and the core network. The work also supported direct connections to the users. Here beamforming is used to focus the communication waveforms onto specific mobile phones and tablets.
At present it is common for the data rates in a cellular network to be limited by the link to the core network (known as backhaul). The research proposed an efficient adaptive beamforming algorithm to extend the range and data rate while also reducing interference. The paper used compressive sensing to significantly reduce the amount of control data needed to adapt the network to temporal and spatial changes in the channel.
Professor Andrew Nix said: "Both research papers represent an important contribution in the quest to address the ever increasing user demand for higher data rates and capacities. We are fast running out of radio spectrum in the lower frequency bands where cellular and Wi-Fi current operation. As a result we need to exploit high frequencies in future products."
Paper one: Polarimetric filtering for an enhanced multi-user 60GHz WPAN system, Djamal Eddine Berraki, Simon Armour, Andrew Nix, PHY11 Session.
Paper two: Application of compressive sensing in sparse spatial channel recovery for beamforming in mmWave outdoor systems, Djamal Eddine Berraki, Simon Armour, Andrew Nix, PHY29 Session.
Djamal Berraki, a PhD student working on the gigabit wireless communications project, has produced a short video to demonstrate the capabilities of the simulator. The video is available on YouTube at http://www.youtube.com/watch?v=c6zsAdeUTuA&feature=youtu.be
Joanne Fryer | EurekAlert!
Optical fiber transmits one terabit per second – Novel modulation approach
16.09.2016 | Technische Universität München
Researchers prototype system for reading closed books
09.09.2016 | Massachusetts Institute of Technology
The Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP has been developing various applications for OLED microdisplays based on organic semiconductors. By integrating the capabilities of an image sensor directly into the microdisplay, eye movements can be recorded by the smart glasses and utilized for guidance and control functions, as one example. The new design will be debuted at Augmented World Expo Europe (AWE) in Berlin at Booth B25, October 18th – 19th.
“Augmented-reality” and “wearables” have become terms we encounter almost daily. Both can make daily life a little simpler and provide valuable assistance for...
With the help of artificial intelligence, chemists from the University of Basel in Switzerland have computed the characteristics of about two million crystals made up of four chemical elements. The researchers were able to identify 90 previously unknown thermodynamically stable crystals that can be regarded as new materials. They report on their findings in the scientific journal Physical Review Letters.
Elpasolite is a glassy, transparent, shiny and soft mineral with a cubic crystal structure. First discovered in El Paso County (Colorado, USA), it can also be...
For the first time, Fraunhofer IKTS shows additively manufactured hardmetal tools at WorldPM 2016 in Hamburg. Mechanical, chemical as well as a high heat resistance and extreme hardness are required from tools that are used in mechanical and automotive engineering or in plastics and building materials industry. Researchers at the Fraunhofer Institute for Ceramic Technologies and Systems IKTS in Dresden managed the production of complex hardmetal tools via 3D printing in a quality that are in no way inferior to conventionally produced high-performance tools.
Fraunhofer IKTS counts decades of proven expertise in the development of hardmetals. To date, reliable cutting, drilling, pressing and stamping tools made of...
At AKL’16, the International Laser Technology Congress held in May this year, interest in the topic of process control was greater than expected. Appropriately, the event was also used to launch the Industry Working Group for Process Control in Laser Material Processing. The group provides a forum for representatives from industry and research to initiate pre-competitive projects and discuss issues such as standards, potential cost savings and feasibility.
In the age of industry 4.0, laser technology is firmly established within manufacturing. A wide variety of laser techniques – from USP ablation and additive...
Every three years, the plastics industry gathers at K, the international trade fair for plastics and rubber in Düsseldorf. The Fraunhofer Institute for Laser Technology ILT will also be attending again and presenting many innovative technologies, such as for joining plastics and metals using ultrashort pulse lasers. From October 19 to 26, you can find the Fraunhofer ILT at the joint Fraunhofer booth SC01 in Hall 7.
K is the world’s largest trade fair for the plastics and rubber industry. As in previous years, the organizers are expecting 3,000 exhibitors and more than...
23.09.2016 | Event News
20.09.2016 | Event News
16.09.2016 | Event News
26.09.2016 | Materials Sciences
26.09.2016 | Materials Sciences
26.09.2016 | Materials Sciences