Title :
Performance of a multi-rate CDMA packet data system
Author :
Walton, Rod ; Ketchum, John
Author_Institution :
TELE Code Inc., Billerica, MA, USA
Abstract :
The performance of a multi-rate IS-95 based CDMA packet data system is examined. Both the uplink and downlink channels are analyzed in a multi-user, multi-rate environment for a single 1.25 MHz carrier. On the uplink, the throughput-delay performance is evaluated for a connectionless access protocol. On the downlink, the throughput-delay performance is derived by applying standard queuing models to simulation results describing the system throughput. Load control policies are presented for both links along with simulated performance data. The results demonstrate that the multi-rate CDMA packet data system can deliver more than twice the net throughput of voice services with the same spectral efficiency
Keywords :
cellular radio; code division multiple access; data communication; delays; multiuser channels; packet radio networks; queueing theory; radio links; telecommunication congestion control; 1.25 MHz; IS-95 system; connectionless access protocol; downlink channel; load control policies; multi-rate CDMA packet data system; multi-user environment; performance; simulated performance data; simulation results; spectral efficiency; standard queuing models; system throughput; throughput-delay performance; uplink channel; voice services; Access protocols; Communication system traffic control; Data systems; Downlink; Interference; Load flow control; Multiaccess communication; Resource management; Throughput; Traffic control;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1998. The Ninth IEEE International Symposium on
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-4872-9
DOI :
10.1109/PIMRC.1998.734681
