Second-generation cellular systems are based on digital communications technology. The
major motivation for the development of second generation cellular systems came from the capability of digital communication systems
to provide a wider range of services including voice, facsimile
and data. Data rates up to 9.6 Kbps per radio
channel are typically supported, with some systems allowing channel aggregation
to achieve rates of up to approximately 100 Kbps. Circuit
switching is used to provide all services. A connection must
therefore be established before data is transferred, and that capacity
allocated to a data connection cannot be reused if it
is not used by that connection.
CDMA is a second-generation cellular
system.
Other topics in our resources on CDMA related to Second Generation Cellular include: