A Study on Call Admission Control Scheme Based on Multiple Criterions in CDMA Systems(Switching)

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概要

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• Call Admission Control (CAC) is a very important issue in CDMA systems to guarantee a required quality of service (QoS) and to increase system capacity. In this paper, we proposed and analyzed the CAC scheme using multiple criterions (MCAC), which can provide a quicker processing time and better performance. One is based on the number of active users with the minimum/maximum threshold by considering the spillover ratio, and the other is based on the signal to interference ratio (SIR). If active users are lower/higher than the minimum/maximum number of users threshold (N_min)/(N_max), we accept/reject the new call without any other considerations based on the first criterion. And if the number of active users is between the N. min and AL max, we consider the current SIR to guarantee QoS based on the second criterion. Then the system accepts the new call when the SIR satisfies the system requirements, otherwise, the call is rejected. The multiple criterions scheme is investigated and its performance is compared with the number of user based CAC and power based CAC.

• 社団法人電子情報通信学会の論文
• 2004-08-01

著者

• Park J

  Department Of Information And Communication Engineering Yeungnam University

• Park Jaewon

  Department Of Internal Medicine Tokyo Daini National Hospital

• PIAO Shiquan

  Department of IT S W research team, Daegu Gyeongbuk Institute of Science & Technology (DGIST)

• PARK Yongwan

  Department of Information and Communication Engineering, Yeungnam University

• Park Yongwan

  Department Of Information And Communication Engineering Yeungnam University

• Piao Shiquan

  Department Of Information And Communication Engineering Yeungnam University

• PARK Jaewon

  Department of Information and Communication Engineering, Yeungnam University

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