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Six Major 3G and 4G Networks Tested Nationwide
adeelarshad82 writes "PCMag recently tested six 3G and 4G networks to determine which ones were the fastest (and slowest) in 18 different US cities. They focused on data, not calls, and used their own testing script and methodology, which combined various kinds of uploads and downloads. Using laptops, more than a dozen people ran more than 10,000 tests; they found AT&T is both the fastest national 3G network, and the least consistent. Sprint's 3G system was the slowest of the 'big four' carriers, but the most consistent. When the test results were broken down by regions, AT&T led on speed in the Southeast, Central, and West, but T-Mobile took the crown in the Northeast region. Sprint's 4G network was fast where it was available, but it was surprisingly slower than 3G in some cities. The fastest AT&T download seen, at 5.05 megabits/sec, was right behind Apple's headquarters at 1 Infinite Loop in Cupertino, CA. The fastest connection in any of the tests was a blazing 9.11 megabits down on Sprint 4G in the Midtown neighborhood of Atlanta, GA. The slowest city, on average, was Raleigh, with average 3G downloads of 880kbits/sec."
You're partially right. CDMA as a modulation technique is used by UMTS networks as well as CDMA networks. CDMA2000/EVDO is an end to end technology used by "CDMA Networks". GSM networks which CDMA modulation are much different.
With regards to LTE you're completely wrong: LTE uses OFDM.
> as I've heard pretty much everywhere that [Verizon] have the best network
You have apparently been talking with Verizon employees, then. Verizon hasn't even been able to maintain the existing landline network that they acquired when they bought GTE. If I ever inherit a hillion jillion dollars, Verizon is the first company I will buy just to shut them down.
Cut that out, or I will ship you to Norilsk in a box.
Apparently those supposed heavyweight credentials he was swinging around don't mean shit!
OFDM uses orthogonal carriers, not orthogonal codes. It has coding but that's not for orthogonality. CDMA is frequency spread and multiple access through the code. Individual OFDM carriers are *not* code spread.
I certainly hope your CTO doesn't see what you're writing. You seem to not understand what even "multiple access" and "code division" means.