An access attempt overload control method in CDMA system

An access attempt overload control method is proposed for CDMA cellular sys tem to provide good communication quality to mobile stations under the traf fic overload condition. Under the normal traffic condition, the effect of a ccess attempts on the interference is negligible. But under the traffic ove rload condition, the interference due to access attempts could be large and deteriorate the communication quality (or reduce the capacity of a reverse link) ii access attempts are not controlled properly. The numerical and si mulation results show that our access attempt overload control method can m aintain the interference caused by access attempts very low and the capacit y of the reverse link is not reduced under the traffic overload condition.