Title :
Real-time testbed for assessing a CDMA-based system
Author :
Stefansson, Tomas ; Allkins, Martin
Author_Institution :
Telia Res. AB, Lulea, Sweden
fDate :
10/1/1995 12:00:00 AM
Abstract :
A CDMA-based system concept has been developed with a flexible air interface. A real-time testbed has been built based on this advanced, flexible concept demonstrating some of its key features. Variable bit rate speech up to 16 kb/s and data up to 128 kb/s in the connection-oriented and connection-less modes can be demonstrated. The testbed is used in a validation program assessing how well the CODIT (Code Division Testbed) concept meets the requirements set up for UMTS/FPLMTS. Laboratory tests verify basic performance of the CODIT air interface. This forms the basis for the overall performance of the CODIT system. Demonstrations verify performance in a set of real environments. The results of the validation process, including simulations, measurements, and theoretical studies form a basis for the final assessment of how well the CODIT concept is supporting UMTS
Keywords :
cellular radio; code division multiple access; data communication; land mobile radio; telecommunication equipment testing; test equipment; 16 to 128 kbit/s; CDMA-based system; CODIT; Code Division Testbed; FPLMTS; UMTS; connection-less mode; connection-oriented mode; data communication; flexible air interface; performance; real-time testbed; variable bit rate speech; 3G mobile communication; Analytical models; Bit rate; Europe; Hardware; Multiaccess communication; Performance analysis; Radio frequency; Real time systems; System testing;
Journal_Title :
Personal Communications, IEEE
