Teletraffic behaviour of CDMA cellular mobile communication systems
Bill Lavery, David Everitt · 2003
The teletraffic performance of code division multiple access (CDMA) cellular communication networks, in particular the relationships between power control, new call admission control, handoff procedures, and connection quality, is considered. How the power transmitted for each user's signal must be controlled if channel capacity is to be maximized is addressed. When power levels are suitably controlled, CDMA has a teletraffic behavior which exhibits a gradual overload nature. Operational strategies to exploit this gradual overload characteristic, by allowing operation near and beyond the normal cell capacity so as to better handle traffic overloads, particularly minimizing handover failures, are described. Simulations, using a novel measure of service quality, have quantified the resulting improvements in teletraffic performance.>