Title :
Admission control of integrated voice and data CDMA/TDD system considering asymmetric traffic and power limit
Author :
Cao, Yanbo ; Zhou, Bin ; Li, Chengshu
Author_Institution :
Modern Commun. Res. Inst., Northern Jiaotong Univ., Beijing, China
Abstract :
This paper researches an admission control scheme of integrated voice and data CDMA/TDD system considering asymmetric traffic and power limit. A new user can access the system only if the outage probabilities it experiences on the uplink and downlink time slots are below a threshold value. Based on the power limit the results show the voice and data blocking probabilities under different cell coverage radius, classes of calls and arrival rates. The system performances are also compared under various uplink/downlink time slot allocation patterns. Furthermore, multicode and multislot schemes are proposed and evaluated under the presented admission control scheme.
Keywords :
channel allocation; code division multiple access; integrated voice/data communication; power control; probability; radio links; telecommunication congestion control; telecommunication traffic; time division multiplexing; CDMA/TDD system; admission control; arrival rates; asymmetric traffic; blocking probabilities; call classes; cell coverage radius; downlink time slots; integrated voice and data system; outage probabilities; power limit; time slot allocation patterns; uplink time slots; Admission control; Communication system traffic control; Downlink; Frequency; Multiaccess communication; Multiuser detection; Open loop systems; Power control; Robust control; System performance;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003. 14th IEEE Proceedings on
Print_ISBN :
0-7803-7822-9
DOI :
10.1109/PIMRC.2003.1264403