WAP is coming under heavy fire lately. http://slashdot.org/article.pl?sid/07/07/1414230&mode=thread Links to an article written by a friend of mine on WAP. Mostly negative. The standards community and even the anti-standards community (read: Microsoft) continue...
GSM uses two main techniques, TDMA AND Frequency-Hopping. This, combined with a third feature that doesn’t transmit “quiet times” — points where there is no speech, combines to produce between a 15x-20x increase in utilization. TDMA combined...
Oops. Let me clarify: CDM = 20x, TDM = 3x. AT&T and Rogers/Cantel use TDMA. Sprint, Telus, and most others use CDMA. -Ian. At 11:04 AM 18/05/00 -0700, Ian Andrew Bell wrote: >Oh. Sorry. > >TDMA: Time Division Multiple Access 3x Frequency Re-use >CDMA: Code...
Oh. Sorry. TDMA: Time Division Multiple Access 3x Frequency Re-use CDMA: Code Division Multiple Access 20x Frequency Re-use Refers, basically, to how cellular carriers squeeze multiple phones onto one “circuit” (which is actually a frequency/modulation)....
Ian Andrew Bell has been bending bits into business since 1993. He created Tingle, RosterBot, RingCentral, and other things celebrated and ignominious.
He is also a Hockeyist, Motorcyclist, and Aviation Enthusiast. Follow him on twitter as @ianb or find him on LinkedIN.
