Below is a summary of spectrum auctions completed this year that I did not report on. Some of these auctions are particularly interesting. For example, the 2.3 GHz band auction in Hong Kong follows a failed attempt to auction this band in early 2009. At that time, the hype around WiMAX was subsiding as interest in LTE… Read More »
In my previous blog entry, I set out to answer the question of how much WiFi is deployed. Here, I like to focus on the question of interference. Unfortunately, I think there are fewer studies that characterize WiFi usage and interference than there ought to be. I will show here a few of the results… Read More »
The success of WiFi is nothing short of outstanding. Who would have thought that wireless network operators would adopt the technology and deploy WiFi access nodes in their tens of thousands to off-load their wide area networks? But with more carrier WiFi being rolled out in addition to your typical enterprise and personal access nodes,… Read More »
The FCC adopted the rules for the 3.65 – 3.7 GHz band in May 2007, a good nine years after it first proposed to allocate the band to non-Government fixed services on a primary basis. This timeline coincided with parallel development of WiMAX where equipment based on the fixed version of the standard (IEEE 802.16d)… Read More »
There are several problems to overcome in making spectrum sharing a reality. Some are technical but more often than not, it is easier to overcome those hurdles than commercial ones. So what are those challenges? And when can we expect to resolve them to make spectrum sharing a reality?
In a bold move, the President’s Council of Advisors on Science and Technology (PCAST) recommended for federal spectrum to be shared between federal and private sector. This radical departure from “business as usual” when it comes to spectrum management holds much promise for accelerating innovation in the wireless industry.
In a mid-year update on global mobile data traffic growth, ABI forecasts that the volume will exceed 107 exabytes in 2017, which is eight times the expected volume in 2012. According to ABI research analyst Aapo Markkanen “2015 will be the last year when the traffic volume will grow by more than 50% annually. And… Read More »
In the most recent deal, AT&T filed to acquire Nextwave’s WCS (Wireless Communication Services) and AWS (Advanced Wireless Services) assets for $650 million. The bulk of this deal is about the WCS band, so what is this deal about and what does AT&T get for the money?
When the WCS band was first auctioned off in 1997, 30 MHz of spectrum in 2.3 GHz was sold for $14.8 million. At the time, it seems reasonable to pay that much for spectrum with stringent regulatory requirements on RF out of band emissions to protect the adjacent satellite DARS band (Digital Audio Radio Service).… Read More »
If you have been following the wireless industry, you for sure would have heard of the capacity crunch and exploding demand for mobile traffic data services. Hardly any presentation by a vendor, analyst, and even operator starts without a graph of future traffic trends. But quietly, another problem has been brewing; one that has received… Read More »
One essence of wireless communication does not change: the reliance on spectrum availability. The frequency spectrum is endowed with different features and characteristics that make trade-offs a necessity. One trade-off is that between data rate and mobility. The lower part of the frequency spectrum which is most amenable for mobile services due to economic reasons… Read More »
The success of personal wireless communications may have been inevitable: communications is an essential tenant of human social structure. Coupled with the proliferation of wireless communication has been a drive to open up new bands of frequency spectrum. The most recent example is the millimeter wave band around 60 GHz which was assigned for unlicensed… Read More »
The 2.5 GHz LTE auction in Brazil came to an end last week with total proceedings of 2.96 Billion Real ($1.42 Billion). The spectrum included a sliver of 450 MHz spectrum for rural access which regulator Anatel was not able to auction independently and was later included with the 2.5 GHz licenses.
Photon Orbital Angular Momentum (OAM) is a new technique to increase wireless channel capacity. However, not everyone agrees that this is a conceptually new area in radio communication and they make the case that OAM is a special mode of MIMO communications. This view was presented in a recent IEEE Transactions on Antennas & Propagation… Read More »
In some of my recent postings, I wrote about the limits of the physical layer and what that means for the future of wireless communications systems. Here, I like to mention new research that has promise of increasing the capacity of the physical layer. This new work is based on exploiting a property of electromagnetic… Read More »