Wireless

Wireless / Most Viewed

An Update on LEO Satellites

A lot of rural America continues to hope that low orbit satellite (LEO) service will provide a broadband alternative. It's been a while since I've covered the status of the companies proposing to deploy constellations of satellites for providing broadband. In March, OneWeb filed for Chapter 11 restructuring when it was clear that the company could not raise enough cash to continue the research and development of the satellite product. more

Washington’s 5G Mania Endpoint – Global CyberBalkanisation

Over the past two years, governments and foreign intelligence agencies around the world have tried to understand the inexplicable, chaotic, irrational, indeed maniacal 5G policies of the Trump Administration. Revelations by former Trump administration officials and most recently Trump's niece confirm that there is no rational basis for Trumpian positions and policies and that the best response is to recognize that Washington is no longer capable of playing a meaningful role... more

Mobile’s Need for Fibre

It was interesting to see that in New Zealand Vodafone had second thoughts and decided to come up with its own proposal of forming a consortium of network operators, rather than simply supporting the government's announcement of its FttH plans. Our analysis of this change of mind is that mobile operators increasingly need fibre networks to sustain the enormous growth in mobile broadband. Most mobile stations around the world are not connected to a fibre network. more

Economics and Common Sense Deprecates the Common Argument for Lower Spectrum Prices

Outside of China, very few governments would expect a saving in spectrum costs would mostly go to investment. Corporations have other priorities, including advertising and executive salaries. Stockholders come above everything at most companies. Rarely would even 1/3rd of the saving go to capital spending. The U.S. under Trump had a massive tax cut, worth literally billions to Verizon and AT&T. Verizon actually cut investment. AT&T's increase in capex was far lower than the tax saving. more

United States: 276M Wireless Users, 740B Text messages Recorded for the First Half of 2009

According to CTIA's semi-annual wireless industry report, text messaging continues to be enormously popular in the United States, with more than 740 billion text messages carried on carriers' networks during the first half of 2009 - that is 4.1 billion messages per day. This number is nearly double from last year which was reported at 385 billion text messages. more

Researchers Demonstrate Serious Privacy Attacks on 4G and 5G Protocols

A group of academic researchers have revealed a design weakness in the 4G/5G protocol which can be exploited by an attacker to identify the victim's presence in a particular cell area just from the victim's soft-identity such as phone number and Twitter handle. more

Facebook Proposes New Optical Detector to Enable Free-Space Laser Communication

Published today in a scientific journal, Facebook has proposed a new type of optical detector that could simplify the technology behind free-space laser communication and enable high-speed connectivity in areas where traditional infrastructure is difficult to build. more

From Subscribers to Connections

The global telecoms industry numbers remain impressive: By 2020 there will be 6 billion mobile subscribers -- of which, according to Nokia, 95% will have access to wireless broadband by 2015, and by 2020, there will also be 3 billion fixed broadband subscribers. However the relevance of these numbers will decline. By 2020 there will be 50 billion fixed and mobile connections. more

Broadband in China

For years I've been hearing how we are losing the broadband battle with China, so I decided to take a look at the current state of broadband in the country. The China Internet Network Information Center (CNNIC) publishes statistics about the state of broadband in the country, and I used the Statistical Report on Internet Development in China from August 2019 in writing this blog. more

Obama Administration Announces $400 Million Advanced Wireless Research Initiative

Obama Administration announced today a $400 million Advanced Wireless Research Initiative led by the National Science Foundation (NSF). more

Google Bard Fails to Answer Satellite Internet Questions

In an earlier post, I asked whether electronically steered antennas (ESAs) would replace parabolic antennas in satellite ground stations. I did some research and concluded that it is likely that they will. Next, I discussed the same question with ChatGPT and, while it made several false statements, it made a relevant point that I had overlooked. The relevant addition was positive, but the errors were troublesome, so I decided to try ChatGPT's competitor Google Bard. more

Space-Ground Optical (Laser) Communication

SpaceX is equipping its new satellites with inter-satellite laser links (ISLLs). They now have over 8,000 optical terminals in orbit (3 per satellite) and they communicate at up to 100 Gbps. The other low-Earth orbit Internet service providers will follow SpaceX's lead. more

We Need Public 5G Spectrum

Last October the FCC issued a Notice for Proposed Rulemaking that proposed expanding WiFi into the 6 GHz band of spectrum (5.925 to 7.125 GHz). WiFi has been a huge economic boon to the country, and the FCC recognizes that providing more free public spectrum is a vital piece of the spectrum puzzle. Entrepreneurs have found a myriad of inventive ways to use WiFi that go far beyond what carriers have provided with licensed spectrum. more

The 500M Wireless-Only Connections

Around 500M Africans, Indonesians, and Indians are regular Internet users without a landline. Brazil, Indonesia, and Mexico add about 200M more. In total, something like 1B people were wireless-only at the end of Q3 2017. I'm comparing the number of Facebook users (over 250M in India) with the number of landlines (less than 20M in India) for a rough guess at how many are wireless only. In the developed world, 70-90% of all homes have a landline connection... more

SpaceX Quietly Launches New Website for Cellular Starlink Service

SpaceX has unveiled its new "Starlink Direct to Cell" service, aimed at providing cellular connectivity globally via its Starlink satellite network. The newly launched website promotes the service with the promise of "Seamless access to text, voice, and data for LTE phones across the globe." more