Universitat Politècnica de Catalunya - UPC posted this:Reconfigurable beam reflectarray antenna for frequencies in the range of terahertz and millimeter waveThe reflectarray antenna consists of a flat array of phase-shifter cells (reflectarray) illuminated by a feeder, which produces an electronically reconfigurable collimated or shaped beam, where the cells (3b) consist of several stacked layers of conductive elements (4c, 4e, 4d, 4f) on a dielectric substrate (7c, 7d) alternated with layers of liquid crystal (5c, 5d) and a conductive plane (9). Applying bias voltages in the conducting elements, the dielectric constant of the liquid crystal varies producing a phase shift of the reflected field in each cell, allowing for a electronic beam scanning or reconfiguration. Including multiple layers of conductive elements and liquid crystal, improves the bandwidth and the performance of the beam scanning or reconfiguration. The antenna can be applied to observation satellites, communications and security systems.
Universitat Politècnica de Catalunya - UPC posted this:Procedure and system for the passive location of wireless nodesA procedure for positioning wireless nodes under a passive approach, i.e., just listening to the radio medium has been developed. Thus, each regular location process run to locate a specific wireless node in the network yields to several nodes knowing their own position. Partners to further develop the system and/ or to establish commercial agreements with technical cooperation are sought.
Universitat Politècnica de Catalunya - UPC posted this:New FFTH-PON Network for extended numbers of usersA new Passive-Optical-Network (PON) for Fiber-To-The-Home (FTTH) services has been developed in the frame of the National Research Project TEYDE. While current FTTH networks as GPON and EPON can reach a maximum of 32-64 users, the proposed PON can serve more than 4000 users, thanks to a new device for distributing the signal among the users that intelligently recycles the noise generated by other elements of the network. Partners to further develop the device and/or to establish license agreements with technical cooperation are sought.
Universitat Politècnica de Catalunya - UPC posted this:A low-complexity and low-power receiver for wireless communicationsA superregenerative receiver for digital phase-modulated signals has been developed and patented. The technology described herein extends for the first time the conventional superregenerative receiver to be able to detect PSK signals with a minimum of additional circuitry. Taking advantage of both the lowcomplexity and low-power from superregenerative receivers and the more efficient power transmission achieved by PSK modulations. Partners to further develop the system and/or to establish commercial agreements along with technical cooperation are sought.
Universitat Politècnica de Catalunya - UPC posted this:Optical communication receiver with an SQRT nonlinear equalizerIn a high bit rate optical transmission, the inclusion of a simple non-linear equalizer implementing the square-root mathematical function, just after the photo-detector and before the conventional electronic equalizer (FIR, MLSE, analog,..), linearizes the overall systems and highly improves the transmission performances.
Universitat Politècnica de Catalunya - UPC posted this:OPTICAL REMOTE NODE DEVICE AND SUPPORT EQUIPMENT FOR CONSTRUCTING AND EXTENDING FIBRE-OPTIC ACCESS NETWORKSThe Remote Node performs all-optical interfacing between a metropolitan ring and the access trees to the homes, thus enabling a transparent metro-access converged optical network. The device performs the functions of wavelength add&drop, ring protection and optical amplification with remote pumping. It is composed by a number of optical elements not requiring electrical power supply.
Universitat Politècnica de Catalunya - UPC posted this:Handover System and Method for 4G/5G NetworksAn innovative handover signaling method, that utilizes the Software Defined Networking (SDN) paradigm, parallel information transfer and elimination of duplicate information to reduce the signaling overhead during the handover preparation and rejection phases, which are critical for an efficient handover.
Center for Technology Transfer and Commercialization of Novosibirsk State University posted this:Post-quantum cryptosystem with public keyA post-quantum public-key cryptographic system has been developed in the cryptography laboratory of the university (Novosibirsk). It is used in the Internet of things, blockchain technology, cryptocurrency, key exchange, for example, in instant messengers, or as an independent mean of protection. The cryptosystem is resistant to hacking, including a quantum computer through the use of NP-hard in a quantum sense problem. The university is looking for partners for furtherance on the Russian and international markets.
Center for Technology Transfer and Commercialization of Novosibirsk State University posted this:Resistant to hacking by a quantum computer electronic digital signatureResearchers of Novosibirsk State University have developed a revolutionary algorithm for quantum-stable digital signature based on results of fundamental research in mathematics. Moreover, they implemented the algorithm as a software prototype. The cryptographic stability of the digital signature guarantees information security when using it in e-economics, the Internet of things and other areas in the post-quantum era. The stability of the algorithm is ensured by solving the problem that is an NP-hard (non-polinomial intractable) in the quantum sense. The university is looking for partners to commercialize the technology in international markets.
Luxembourg Institute of Science and Technology posted this:TRANSPARENCY OF ACCESS IN PEER-TO-PEER FILESHARING NETWORKSWith the use of peer-to-peer file sharing networks like BitTorrent or Freenet, the distribution of files amongst participants has become fast and easy. In a collaborative environment, this kind of data pool often makes sense, but with the drawback that someone who has provided data to the pool, loses control about who had accessed what file. This transparency of access is often required, e.g. for billing purposes or to fulfil the transparency rule of the new general data protection regulation. There are several options to solve this problem including the use of central systems or logging that involves the source of data. Usually these options introduce single points of failure. The Luxembourg Institute of Science and Technology offers a blockchain based method that is filed as a patent (patent pending) that avoids these single points of failure but still offers the benefits of redundant distributed file storage and still being able to audit selective the access of files.
Universidad de Alcalá-OTRI posted this:System and method of distributed characterization of dispersion profile of an optical fiberThe Photonic Engineering research group of the University of Alcalá, in collaboration with the Institute of Optics of the CSIC and FOCUS S.L. presents a system and method of distributed characterization of optical fibers that provides an absolute measurement of the dispersion profile of the fiber. The group looks for telecommunications companies specialized in the industrial area of sensing and distributed fiber optic characterization, for patent licensing agreements or commercial agreements with technical assistance.
Universidad de Alcalá-OTRI posted this:Distributed characterization system and method of variations of the refractive index of an optical fiber.The Photonics Research Group of Alcalá University has developed a method and a system that both allow to take at the same time, distributed measures of deformation and temperature, derived from the laser source, vibrations…, based on a ɸ -OTDR system with limited elements and therefore reducing the cost of the sensor system. The group seeks to reach licensing, cooperation and commercial agreements with telecommunications companies or sensing and distributed characterization of optical fiber enterprises.
Spanish National Research Council posted this:Energy harvesting from ambient vibrations for wireless sensors applicationResearchers from the Spanish National Research Council at the Barcelona Microelectronics Institute (IMB-CNM) have recently developed a mechanical energy harvesting device by using a low-cost microelectronic fabrication process. The device acts as an electrical generator and is driven by environmentally-available mechanical energy such as ambient vibrations. Due to its flexibility and small size, it is of easy integration as power generator permitting the provision of full power autonomy to any wireless sensor node during its lifecycle into a network infrastructure following the philosophy “install and forget”. Industrial partners are being sought to exploit the existing know-how through a patent license agreement.
Universidad de Alcalá-OTRI posted this:Intelligent Transport System for the optimzation of indoor shared resources: routes, communication channels and sensor networks.GEINTRA is a research group from the Electronics Department of the University of Alcala. The group offers solutions for route selection and digital control with adaptive sampling. It is an useful system for transport optimization and functionality of indoor mobile units. With competitive advantages such as travel time optimization, selective use of the wireless communication channel and energy cost reduction for sensors distributed in the environment. The group is looking for industrial automation companies to achieve technical cooperation agreements and licensing agreements.