Title :
Prediction based access control in integrated voice/data CDMA systems
Author :
Comaniciu, Cristina ; Mandayam, Narayan B.
Author_Institution :
Wireless Inf. Network Lab., Rutgers Univ., Piscataway, NJ, USA
fDate :
6/21/1905 12:00:00 AM
Abstract :
We propose access control protocols for integrated voice/data CDMA systems that are based on estimating the residual capacity available for data users. The residual capacity is derived from the feasibility condition for power control using an adaptive prediction technique based on delta modulation. The analysis is extended for the case of imperfect power control. Two access control protocols are considered: modified delta modulation with scheduled access (MDM-S), and modified delta modulation with random access (MDM-R). Comparisons with earlier proposed protocols reveal a better performance in terms of data mean access delay for a given system capacity and outage probability
Keywords :
access protocols; adaptive systems; cellular radio; channel capacity; code division multiple access; delays; delta modulation; integrated voice/data communication; multiuser channels; prediction theory; probability; spread spectrum communication; access control protocols; adaptive prediction; direct sequence single cell CDMA system; imperfect power control; integrated voice/data CDMA systems; mean access delay; modified delta modulation with random access; modified delta modulation with scheduled access; outage probability; performance; prediction based access control; residual capacity estimation; system capacity; Access control; Access protocols; Capacity planning; Delay; Delta modulation; Information rates; Intelligent networks; Laboratories; Multiaccess communication; Power control;
Conference_Titel :
Communications, 1999. ICC '99. 1999 IEEE International Conference on
Print_ISBN :
0-7803-5284-X
DOI :
10.1109/ICC.1999.765446
