Tag Archives: communication

402Tbit/s has been sent down 50km of commercial-grade optical fibre by an international team led by the Japanese National Institute of Information and Communications Technology (NICT). 1,505 WDM (wavelength division multiplexed) channels were used simultaneously, spread across six optical bands spanning 37.6THz (275nm) of spectrum. Signals were boosted with six doped-fiber amplifiers, with lumped and distributed Raman-amplification, “to cover all ...

Arrow Electronics has developed an ISO 15118 vehicle-to-grid data communication evaluation module. “The software, developed at Arrow’s engineering centre in Gdansk, contains protocol stacks for ISO 15118 V2G. There is also sample application code, as well as support for OCCP [Open Charge-Point Protocol] and Control Pilot interfaces as defined in IEC 61851 and SAE J1772,” said the company. ” V2G ...

Imec unveiled a CMOS 56Gbit/s zero-IF D-band beam-forming transmitter at the IEEE RFIC Symposium in Washington. “It is a key component of a 4-way beamforming transceiver chip currently being developed by imec’s researchers,” according to the Belgian research lab. “With this technology, they aim to support the deployment of short-range wireless services at frequencies above 100GHz.” It sees Gbit/s communication ...

STMicroelectronics will be showing an evaluation kit that implements both power-line and sub-GHz RF comms for smart grid infrastructure this week at Enlit Europe. Called EVLKST8500GH-2, it combines the company’s ST8500 power-line communication SoC, STLD1 line driver and S2-LP low-power long-range sub-GHz radio transceiver – a chipset which is certified to the v1.4 Hybrid specification of power-line communication industry body ...

Vites has chosen a beamforming IC from Oxford-based Ensilica for a vehicle satellite communication terminal. The terminal, called Visat-Ka, is intended to provide high-speed connectivity from moving vehicles anywhere on the Earth using low earth orbit (LEO) and other non-geosynchronous (NGSO) satellites. As such, it has to steer its Ka-band phased-array antenna to maintain link gain. As well as satcom-on-the-move ...

French laboratory CEA-Leti looking to find ways to improve road safety through automated vehicle-to-vehicle communication. Its initiative is intended to “contribute to a higher level of vehicle automation and cooperation by expanding the latest developments in vehicular wireless communications that improve reaction time, pedestrian detection and overall vehicle performance”, according to Leti. By “combining learnings from participation in three EU ...

U-blox’ LARA-R6 LTE Cat 1 and LARA-L6 LTE Cat 4 cellular modules have been certified to Radio Equipment Directive (RED) cybersecurity, having passed RED article 3.3 d/e/f requirements using ETSI’s EN 303 645 standard. “As cyberattacks and privacy concerns grow, there’s an urgent need for wireless devices and products to feature enhanced security. With stricter regulations on the horizon, manufacturers ...

Route planning has started on the pan-Arctic submarine cable that could link Europe, North America and Asia via the Northwest Passage – the latter opening as formerly permanent ice yields to climate change. The idea of the project, dubbed Far North Fiber, is to terminate in Japan, Norway and Ireland, and have branches to Alaska, Canada and Greenland (see map). ...

In what might be the lowest power data transmission scheme ever, researchers at the University of Washington have sent data using the Johnson noise of a 50Ω resistor – or more accurately, the difference in Johnson noise between a 50Ω resistor and an open-circuit. One of the prototypes 5bit/s was sent over ~7.3m with a bit error rate of 0.15%, ...

Lockheed Martin has created a novel millimetre-wave dish antenna for satellites and ground terminals, particularly for space-based 5G communication. Called ‘wide angle ESA fed reflector’ (Waefr), it is a hybrid of a phased array electronically steerable antenna (ESA) and a parabolic dish, and is claimed to increases coverage area by 190% compared to traditional phased array antennas, at lower cost. ...