A
wireless protocol which is gaining
popularity in
Japan. The PIAFS
protocol is used on the
PHS digital wireless network, which in turn is based up
CDMA (which is itself based upon earlier digital
cellular specifications). PIAFS is
rapidly being
deployed in
Japan because it can be
terminated by
standard ISDN devices.
PIAFS operates at a
datarate of 32k (
kilobit) for
protocol version 1.1; 64k for
protocol version 2.0, and a auto-switching
mode between 32k and 64k in version
2.1. PIAFS
2.2 implements better heuristics for the
switching operation of
version 2.1.
Both
NTT and
DDI offer PIAFS
service.
Nothing like
surfing the web and eating
sushi!
06/22/2001 Addendem: PIAFS and PHS seem to be getting their ass handed to them by i-Mode, but the protocol is still in use.