High Frequency wireless (millimeter wave) can deliver speeds well into the gigabits. At millimeter wavelengths you can aggregate hundreds oMillimeter wave textboolf MHz of spectrum compared to the 20 MHz typical of today's wireless networks. High frequency antennas are very small, so it's practical to put 50 of them on a chip for massive MIMO.

Rappaport, Heath and colleagues are world leaders in research in millimeter wave high frequencies and MIMO. Rappaport's NYU Wireless Center has been sending teams out to get empirical data on frequencies like 28 GHz. They are testing in two of the toughest locations for a wireless network: Manhattan and Downtown Brooklyn. Heath at the University of Texas built one of the first MU MIMO testbeds.

With literally $billions going into 5G wireless research you need the latest information and best sources.

Many of the claims in traditional wireless textbooks are not proving out in empirical testing. This book is current & well-informed and likely to be the standard for years if the authors' issue regular updates. It's a technical book and not easy reading for non-engineers but the style is clear and the explanations well written.

For the record, I'm a technology writer who has interviewed two of the authors on several occasions. Rappaport was part of a webinar I did for the Marconi Society.

dave ask

Newsfeed

Samsung has delivered 5G chip samples to BBK's Oppo and Vivo, the #2 or #3 phones manufacturer. Samsung is facing off against Qualcomm in the 5G market. Qualcomm is unfazed and reportedly moving the production of their next chip from TSMC to Samsung. 

Sprint's 2.5 GHz 5G is delivering 100-500 megabit downloads consistently. That bodes well for China Mobile, using the same frequencies.

Vodafone, BT, and soon 3UK are delivering modestly sized 5G mid-band networks. Vodafone is also live in Spain and Italy. 

Sunrise in Switzerland is using 5G mid-band for fixed wireless in rural areas.  

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Welcome  1,000,000 Koreans bought 5G in the first ten weeks. The demand is there, and most of the technology works. Meanwhile, the hype is unreal. Time for reporting closer to the truth.

The estimates you hear about 5G costs are wildly exaggerated. Verizon is building the most advanced wireless network while reducing capex. Deutsche Telekom and Orange/France Telecom also confirm they won't raise capex.

Massive MIMO in either 4G or "5G" can increase capacity 3X to 7X, including putting 2.3 GHz to 4.2 GHz to use. Carrier Aggregation, 256 QAM, and other tools double and triple that. Verizon sees cost/bit dropping 40% per year.

Cisco & others see traffic growth slowing to 30%/year or less.  I infer overcapacity almost everywhere.  

Believe it or not, 80+% of 5G (mid-band) for several years will be slower than good 4G, which is more developed.