Wireless Wide Area Networks For Mobile
When network coverage requirements for a mobile computing
application go beyond a campus or a metropolitan area, you need a wireless wide area
network (WAN). There are a number of wireless WANs available from different network
infrastructure suppliers for private installation or network service providers for public
shared use. These networks come in both public shared version (available on a packet usage
basis) as well as in private network versions, though the trend is definitely towards
public shared implementation. As project designers, you have a choice of the following
- SMR (mostly
private, but sometimes public, as well) networks for voice and data -
especially for public safety applications. Click
here for more information.
- Paging Networks
- for slow speed transmission of short numeric, text or alphanumeric
messages - one-way or two-way. Click here
for more information on paging networks.
- Public cellular circuit-switched networks - normally used for
voice communication but
can be used for data traffic as well for some applications where you need to connect
for file transfer and synchronization, etc. Click
here for more information.
- CDPD networks
operated by a number of carriers - GTE, Bell Atlantic, etc. Click here
for more information.
- provides national coverage through a
4800-19200 bps packet mobile radio data network in over 90% of urban areas of USA.
Click here for more information.
- Cingular (formerly Bell
South) wireless data network - based
on Ericsson's Mobitex architecture - a 8000 bps national network: Click here for more information.
- NEXTEL's iDEN
ESMR Network: Go to ESMR page for more
- Public narrow-band PCS
networks - GSM, CDMA and TDMA Wireless Networks
- Narrowband PCS (CDMA, TDMA &
GSM) networks) - Several different wireless
operators are offering PCS digital networks. Some use TDMA technology, others use CDMA and
still others GSM - a European standard for digital data.
- GSM - Primarily
a European standard for PCS for voice and data, it is being implemented by several US
wireless network service providers as well. Go
to our GSM page for brief info on this network. Go to North American GSM Alliance site for further
information on GSM.
- Broadband Wireless Networks
- During 1999, several new initiatives were started underway to provide wireless access to
the Internet in the broadband arena. The objective is to provide high speed access from
fixed locations using wireless network technology. Go to Hot Topics page for more info.
- Satellite Networks
- True ubiquitous wireless network coverage is provided only by satellite networks. Go to Satellite Network page for more info.
- Verizon, Sprint and AT&T wireless data
- GSM/GPRS, 2.5G and 3G Networks - Go
to hot topics
Choosing the Right Wireless
Network for Your Application : Go to "Selecting the Right Network"
For a brief description
of various wireless network technologies - cellular, PCS, TDMA, CDMA, and others go to