Why are so many lines still reserved for emergency telephone calls in emergency situations?

Kazuki Tanabe, Sumiko Miyata, Ken Ichi Baba, Katsunori Yamaoka

研究成果: Conference contribution

2 引用 (Scopus)

抄録

We propose a threshold relaxation and holding time limitation for general telephone calls under trunk reservation control in emergency situations. This TR-HTL method aims to accept more general calls while required emergency calls are still accepted. Computer simulation with a queueing system model of a telephone exchange showed that the threshold relaxation increased the number of accepted general calls while still enabling the required number of emergency calls to be accepted. Comparison between two strategies to set the holding time limit of general calls showed that the value of the limit and the call-blocking rate are in a strong trade-off relationship when the limit is short. An investigation of the relationships between the threshold relaxation rate and the call-blocking rate showed that reserving just 5% of the estimated traffic intensity of emergency calls enabled the required number of emergency calls to be accepted, increasing the number of accepted general calls. Moreover, we showed that much fewer reserved lines are needed for guaranteeing emergency calls.

元の言語English
ホスト出版物のタイトル2014 16th International Telecommunications Network Strategy and Planning Symposium, Networks 2014
出版者Institute of Electrical and Electronics Engineers Inc.
ISBN(印刷物)9781479965151
DOI
出版物ステータスPublished - 2014 11 14
外部発表Yes
イベント16th International Telecommunications Network Strategy and Planning Symposium, Networks 2014 - Funchal, Portugal
継続期間: 2014 9 172014 9 19

Other

Other16th International Telecommunications Network Strategy and Planning Symposium, Networks 2014
Portugal
Funchal
期間14/9/1714/9/19

Fingerprint

Telephone exchanges
Telephone lines
Telephone
Computer simulation
Emergency

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Strategy and Management

これを引用

Tanabe, K., Miyata, S., Baba, K. I., & Yamaoka, K. (2014). Why are so many lines still reserved for emergency telephone calls in emergency situations?2014 16th International Telecommunications Network Strategy and Planning Symposium, Networks 2014 [6959249] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/NETWKS.2014.6959249

Why are so many lines still reserved for emergency telephone calls in emergency situations? / Tanabe, Kazuki; Miyata, Sumiko; Baba, Ken Ichi; Yamaoka, Katsunori.

2014 16th International Telecommunications Network Strategy and Planning Symposium, Networks 2014. Institute of Electrical and Electronics Engineers Inc., 2014. 6959249.

研究成果: Conference contribution

Tanabe, K, Miyata, S, Baba, KI & Yamaoka, K 2014, Why are so many lines still reserved for emergency telephone calls in emergency situations?2014 16th International Telecommunications Network Strategy and Planning Symposium, Networks 2014., 6959249, Institute of Electrical and Electronics Engineers Inc., 16th International Telecommunications Network Strategy and Planning Symposium, Networks 2014, Funchal, Portugal, 14/9/17. https://doi.org/10.1109/NETWKS.2014.6959249
Tanabe K, Miyata S, Baba KI, Yamaoka K. Why are so many lines still reserved for emergency telephone calls in emergency situations? : 2014 16th International Telecommunications Network Strategy and Planning Symposium, Networks 2014. Institute of Electrical and Electronics Engineers Inc. 2014. 6959249 https://doi.org/10.1109/NETWKS.2014.6959249
Tanabe, Kazuki ; Miyata, Sumiko ; Baba, Ken Ichi ; Yamaoka, Katsunori. / Why are so many lines still reserved for emergency telephone calls in emergency situations?. 2014 16th International Telecommunications Network Strategy and Planning Symposium, Networks 2014. Institute of Electrical and Electronics Engineers Inc., 2014.
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