Threshold Configuration of Emergency Trunk Reservation Considering Traffic Intensity for Accepting More General Telephone Calls

被引:0
作者
Tanabe, Kazuki [1 ]
Miyata, Sumiko [2 ]
Baba, Ken-ichi [3 ]
Yamaoka, Katsunori [1 ]
机构
[1] Tokyo Inst Technol, Meguro Ku, 2-12-1-S3-68 Ookayama, Tokyo 1528552, Japan
[2] Kanagawa Univ, Kanagawa Ku, Yokohama, Kanagawa 2218686, Japan
[3] Kogakuin Univ, Shinjuku Ku, Tokyo 1638677, Japan
来源
2014 6TH INTERNATIONAL WORKSHOP ON RELIABLE NETWORKS DESIGN AND MODELING (RNDM) | 2014年
关键词
Emergency Telecommunications Service (ETS); Accepting general telephone calls; Congestion control; Trunk reservation control; Threshold configuration; Call-blocking rate; Queueing theory;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We propose a threshold configuration and holding time limitation for general telephone calls under trunk reservation control in emergency situations. Our proposed method aims to accept more general calls while required emergency calls are still accepted. With our method, the threshold is configured in consideration of the ratio of traffic intensities which are estimated in advance. Computer simulation with a queueing system model of a telephone exchange showed that the general call-blocking rate was much lower than that without threshold relaxation or trunk reservation, while the emergency call-blocking rate was reduced to almost zero unless the sum of estimated traffic intensity was nearly equal to the number of lines. Moreover, we confirmed that the threshold was appropriately configured by using the proposed method, from the comparison between the result of the proposed method and that obtained by using the fixed value of a threshold.
引用
收藏
页码:165 / 170
页数:6
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