Skip to main content

Top 5 Posts for 2025

Connectivity Technology Blog may still be a relatively small and focused publication, but its scope is broad. The blog looks across the full spectrum of connectivity technologies, from fixed and mobile cellular networks such as 4G, 5G and 6G, through to Wi-Fi, IoT, Bluetooth, LoRaWAN, Sigfox and satellite communications. Since launching in 2019, the aim has always been to explain how these technologies work and why they matter, without hype or unnecessary complexity.

2025 turned out to be a standout year. The blog crossed a significant milestone, recording well over half a million views during the year. That growth has been driven entirely by reader interest and engagement, which makes it even more rewarding. As the year comes to a close, it feels like the right moment to look back and highlight the posts that resonated most strongly with readers.

As has become a bit of an annual tradition, here is a look at the most popular content from 2025.

Top 5 Most Viewed Posts of 2025

One interesting shift this year is that all of the most viewed posts were published during 2025 itself. In previous years, older evergreen articles often dominated the rankings, but this time new content clearly captured attention as it was published.

  1. Highlights from XGMF's Conference to Advance Millimetre Wave Technology, Jan 2025
  2. Testing, Refining, and Improving Stratospheric Connectivity: NTT Docomo’s HAPS Trials, Apr 2025
  3. How Do Apple AirTags Work?, Mar 2025
  4. The Internet Story: A Deep Dive into How the Internet Works, Apr 2025
  5. Seamless 5G Connectivity Across Germany on Deutsche Bahn, May 2025

What stands out here is the mix. Deep technical topics such as millimetre wave and HAPS sit alongside explainers aimed at a broader audience, as well as real world deployment stories. That balance seems to reflect what readers value most, understanding both the theory and how it plays out in practice.

Top 5 Most Viewed Posts of All Time

While 2025 content performed exceptionally well, some older articles continue to attract steady interest year after year. These posts have become long term reference pieces, regularly discovered by new readers.

The all time top five reflects enduring curiosity around satellite networking, Wi-Fi evolution and core mobile network architecture.

  1. Laser Inter-Satellite Links (LISLs) in a Starlink Constellation, Feb 2022
  2. IEEE 802.11bn Ultra High Reliability (UHR), a.k.a. Wi-Fi 8, Mar 2023
  3. CSI-RS vs SRS Beamforming, Mar 2021
  4. High-level Architecture Introduction of Mobile Cellular Networks from 2G to 5G, Aug 2019
  5. IEEE 802.11be Extremely High Throughput (EHT), a.k.a. Wi-Fi 7, Nov 2020

It is reassuring to see that well explained fundamentals continue to hold their value, even as the industry moves quickly from one generation of technology to the next.

Looking Ahead to 2026

As preparations begin for another year of writing and exploration, a big thank you goes to everyone who reads, shares, comments and challenges the ideas discussed on the blog. That interaction is what keeps the content grounded and relevant.

The plan for 2026 is to continue digging into connectivity technologies that are shaping networks today, while also keeping an eye on what is coming next. As always, suggestions and topic ideas are very welcome.

Wishing you a connected, curious and innovative year ahead.

Related Posts:

Comments

Popular posts from this blog

Laser Inter-Satellite Links (LISLs) in a Starlink Constellation

When we first talked about Starlink back in 2019 , we saw in the video that the concept involved laser communication to communicate between the satellites. While the initially launched satellites did not have the laser communication mechanism built in, it looks like they are being added to the newer ones.  A report from Fast Company in late 2021 said: One of the next big upgrades in telecom will involve satellites firing lasers at each other—to beam data, not blow stuff up. The upside of replacing traditional radio-frequency communication with lasers, that encode data as pulses of light, can be much like that of deploying fiber-optic cable for terrestrial broadband: much faster speeds and much lower latency. “Laser links in orbit can reduce long-distance latency by as much as 50%, due to higher speed of light in vacuum & shorter path than undersea fiber,” SpaceX founder Elon Musk tweeted in July about the upgrade now beginning for that firm’s Starlink satellite constellation. ...

IEEE 802.11bn Ultra High Reliability (UHR), a.k.a. Wi-Fi 8

Back in 2020 we looked at the introductory post of Wi-Fi 7 which was followed up by a more detailed post in Feb 2022. We are now following on with an introductory post on the next generation Wi-Fi.  A new paper on arXiv explores the journey towards IEEE 802.11bn Ultra High Reliability (UHR), the amendment that will form the basis of Wi-Fi 8. Quoting selected items from the paper  below: After providing an overview of the nearly completed Wi-Fi 7 standard, we present new use cases calling for further Wi-Fi evolution. We also outline current standardization, certification, and spectrum allocation activities, sharing updates from the newly formed UHR Study Group. We then introduce the disruptive new features envisioned for Wi-Fi 8 and discuss the associated research challenges. Among those, we focus on access point coordination and demonstrate that it could build upon 802.11be multi-link operation to make Ultra High Reliability a reality in Wi-Fi 8. The IEEE 802.11bn UHR: Whose ...

How Do Apple AirTags Work?

Apple AirTags have steadily gained popularity in the smart tag market. A recent report highlighted that 69% of smart tag buyers in late 2024 chose an Apple AirTag. This marks a significant rise from 45% in early 2022. In contrast, Tile, the category pioneer now owned by Life360, has seen its market share fall to 11% from 17% during the same period. Samsung's Galaxy SmartTags now hold second place. Interestingly, the technology behind AirTags resembles concepts like Opportunity Driven Multiple Access (ODMA) or Multihop Cellular Networks (MCNs), which I have previously explored . A similar approach has also been discussed regarding Bluetooth-based Ad-Hoc networks . How Do They Work? AirTags primarily use Bluetooth Low Energy (BLE) to communicate with nearby Apple devices that are part of the Find My network. This vast network consists of millions of Apple devices, including iPhones, iPads, and Macs, which can detect AirTags and securely relay their location back to the owner. Addit...