Cohere Technologies targets Massive MIMO reboot

first_img 5GCohere Technologiesmassive MIMO AddThis Sharing ButtonsShare to LinkedInLinkedInLinkedInShare to TwitterTwitterTwitterShare to FacebookFacebookFacebookShare to MoreAddThisMore 01 APR 2019 Diana is Mobile World Live’s US Editor, reporting on infrastructure and spectrum rollouts, regulatory issues, and other carrier news from the US market. Diana came to GSMA from her former role as Editor of Wireless Week and CED Magazine, digital-only… Read more The CEO of Cohere Technologies highlighted demand for swift 5G deployments as a fresh opportunity to push the benefits of Massive MIMO, which has been held back by technical challenges associated with the technology.Though companies around the globe have been experimenting with the technology, Ray Dolan told Mobile World Live the full potential of Massive MIMO has been limited by the slowness and rapid expiration of channel predictions used to direct signal beams to users.A key technology for 5G, Massive MIMO uses multiple software-controlled transmit and receive streams to offer much higher network capacity.But Dolan explained that with standard control methods, which rely on time and frequency measurements, it is “almost impossible” to create predictions fast enough to keep up with changes in the channel environment because those predictions are valid for such a short period of time.He flagged the short shelf life of time and frequency predictions as a driving force behind operators’ shift to an edge architecture, since they need to be processed and acted on so quickly. This move, he said, is “reversing a decade of work that the radio guys did” to migrate functions to the cloud.“If you have to put all of the smarts at the edge, you don’t have any visibility on what’s happening between base stations.”Another wayCohere Technologies is pushing an alternative which Dolan said offers more predictable channel modelling using a radar technology-inspired approach to measurement.Rather than relying on time and frequency measurements, he explained the company’s Orthogonal Time Frequency and Space (OTFS) modulation scheme uses delay and Dopplar measurements to offer longer-lasting predictions.He added the staying power of these predictions can give operators more flexibility in their architecture, allowing them to keep processing in the cloud and thus coordinate across base stations more efficiently.Because the solution is so different from the status quo (that is, orthogonal frequency-division multiplexing modulation, or OFDM) and claims to offer predictions which last 1,000-times longer than today’s standard (milliseconds vs microseconds), Dolan said he expects there to be debate and “mudslinging” around whether Cohere Technologies’ system can achieve what it claims.However, he added the company aims to push through the noise and ultimately get its set-up incorporated into industry standards. Subscribe to our daily newsletter Back Author Diana Goovaerts Nokia scores Philippines 5G deal with Dito Home Cohere Technologies targets Massive MIMO rebootcenter_img Mobile Mix: Buzzing for Barcelona Tags Previous ArticleBT executive issues rural rallying cryNext ArticleInternational Alignment: China removed three key mandatory obligations in its Technology Import Regulation Telkomsel turns on 5G in major cities Related Asia last_img read more

Michael Egnor on Scientific Consensus and Apocalypse Now

first_img Evolution NewsEvolution News & Science Today (EN) provides original reporting and analysis about evolution, neuroscience, bioethics, intelligent design and other science-related issues, including breaking news about scientific research. It also covers the impact of science on culture and conflicts over free speech and academic freedom in science. Finally, it fact-checks and critiques media coverage of scientific issues. Share Recommended A Physician Describes How Behe Changed His MindLife’s Origin — A “Mystery” Made AccessibleCodes Are Not Products of PhysicsIxnay on the Ambriancay PlosionexhayDesign Triangulation: My Thanksgiving Gift to All “A Summary of the Evidence for Intelligent Design”: The Study Guide Requesting a (Partial) Retraction from Darrel Falk and BioLogos On a new episode of ID the Future, host Emily Kurlinski talks with Michael Egnor, professor of neurosurgery at Stony Brook University, about the dire warnings, stretching back at least to Thomas Malthus near the turn of the 19th century, that overpopulation would lead to starvation and civilizational ruin. Download the podcast or listen to it here.Egnor discusses this and other scientific claims once widely embraced by scientific experts and later shown to be off base. The lesson, he says, is that when someone tells you to believe something simply because it’s “the scientific consensus,” reserve judgment. Consensus, says Egnor, is “a political concept, not a scientific one.” And when much of the scientific community is held captive by a dogmatic adherence to materialism, any claimed consensus is all the more to be taken with a healthy dose of skepticism.Photo: Michael Egnor at the inauguration of the Walter Bradley Center for Natural & Artificial Intelligence, by Nathan Jacobson. Tagscivilizational ruinconsensusEmily KurlinskiID the FuturematerialismMichael Egnoroverpopulationscientific expertsstarvationThomas Malthus,Trending Congratulations to Science Magazine for an Honest Portrayal of Darwin’s Descent of Man Email Print Google+ Linkedin Twitter Share Origin of Life: Brian Miller Distills a Debate Between Dave Farina and James Tour Email Print Google+ Linkedin Twitter Share Evolution Michael Egnor on Scientific Consensus and Apocalypse NowEvolution News @DiscoveryCSCDecember 1, 2019, 6:27 AM Jane Goodall Meets the God Hypothesislast_img read more

Dover gains help Byron, Johnson tighten playoff picture for Daytona finale

first_imgHendrick Motorsports teammates Jimmie Johnson and William Byron described their circumstance on the NASCAR Cup Series playoff bubble as “odd” and “unfortunate,” vying for the 16th and final provisional spot on the postseason grid with the regular season winding down. A points bonanza Sunday for both drivers opens up a greater possibility for both funneling their way in.Johnson finished third in Sunday’s Drydene 311 at Dover International Speedway, rallying from a Stage 2 speeding penalty and benefiting from some two-tire strategy savvy on his final pit stop. That result was one position in front of Byron, who regained his hold on the provisional 16th spot by four points over Johnson.RELATED: Race results | Three drivers clinch berthsBoth Hendrick Motorsports drivers finished among the points-earners at each stage break Sunday, helping them gain ground on Matt DiBenedetto, who ranks 15th in the playoff standings with one regular-season race remaining. DiBenedetto finished 20th and 17th in the weekend doubleheader, finishing in the points in just one stage. He’s now just five points ahead of Byron and nine ahead of Johnson.The 16-driver playoff field will be settled after Saturday’s regular-season finale, the Coke Zero Sugar 400 (7:30 p.m. ET on NBC/NBC Sports App, MRN and SiriusXM NASCAR Radio) at Daytona International Speedway. Ten drivers have clinched playoff berths with regular-season wins, and three more clinched on the basis of points after the Dover weekend — leaving three berths to be filled at Daytona.Both Byron and Johnson rallied from different forms of adversity. For Johnson, it was a pit-road speeding penalty Sunday on the 102nd of 311 laps that forced him to drive back into contention from 31st place. For Byron, it was Sunday’s cumulative comeback from a subpar 28th-place Saturday run that helped him keep postseason pace.“It was like a completely different race car and completely different race for us today compared to yesterday,” said Byron, who finished third and sixth at the stage breaks to pad his points cushion. “… As soon as we got the track position, we were able to stay up there. I think we were a little bit behind though since we really didn’t have a notebook from yesterday. I think if we had another race at it, we would run a bit better. Overall, this is good for our Axalta team. Now we’re going to Daytona where it’s going to be insane. I don’t think you can really points race. It’s going to be a race to be as aggressive as you can and hope things fall your way.”A new wild-card winner from outside the top 15 in standings at Daytona would take away another playoff berth on the basis of points, adding another layer of unpredictability for Saturday’s 400-miler to the fickle nature of superspeedway racing.RELATED: Byron discusses best run of 2020 | How playoff picture looks leaving DoverJohnson remained in the picture at one of his best tracks, home to 11 of his 83 career wins. When crew chief Cliff Daniels became the lone gambler among the front-runners by opting for just two fresh tires on the No. 48 Chevrolet’s final pit stop, Johnson briefly vaulted to the lead, lining up outside of eventual race winner Kevin Harvick. Harvick and Martin Truex Jr. slipped by him shortly after the restart, but Johnson was able to keep Byron at bay for third, lauding his crew chief’s strategy play on the team communications on the cool-down lap.“We had a really good car and I really credit Cliff for making that brave call for two tires,” Johnson said. “I think we were one of the fastest cars if not the fastest car over the last two runs, just unfortunately clawing our way back in from losing track position, and we didn’t have the best stop two from the end, so we really just had to gamble. I really appreciate his courage to do that. It netted a better finish. Certainly wish there was more there, but a great couple days here in Dover.”Johnson’s playoff fate for his final Cup Series campaign now rests in Daytona, a venue where he’s won three times — most recently with a season sweep of the track’s 2013 events. Johnson said he’s not overly concerned about the nerves involved, having been immersed in postseason tension in each of his seven title marches.“I’ve been doing this too long to worry too much,” Johnson said. “Championship pressure, thankfully I’ve been through that a bunch of different times. Maybe that’s ‑‑ I guess actually maybe that’s where experience will play through for me this weekend and I’ll be able to keep my head on straight, think, keep my emotions in check and really race with a clear and open mind.”DiBenedetto, meanwhile, was frank about his slide closer to the grasp of the Hendrick pair, lamenting his two midpack finishes at Dover and the possibility of approaching peril of Daytona.“Dover killed us. We were pretty horrendous both days,” DiBenedetto said. “I just tried to make the most of it that we could and it just wasn’t much. It was the perfect storm of really losing a lot of points and having a rough weekend. Going to Daytona. I hate to be negative but if we were going somewhere else I would feel better about it because we have been pretty strong at most tracks aside from here. I have struggled here. Going to Daytona and the Fords are strong but I have ended up at the infield care center the last two years there. We keep getting caught up in everyone’s mess. I am going to sit and hope and pray all week that we can just come out of there clean and make the playoffs.”last_img read more