Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Ken'ichi Kawanishi"'
Publikováno v:
Annals of Operations Research. 310:641-660
This paper considers queueing models for cognitive radio networks that account for the sensing time of secondary users (SUs). In cognitive radio networks, secondary users are allowed to opportunistically use idle channels originally allocated to prim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23a3573ae2f6304c4137fc3d2eb01aab
https://doi.org/10.1007/s10479-021-04118-9
https://doi.org/10.1007/s10479-021-04118-9
Autor:
Ken'ichi Kawanishi, Tuan Phung-Duc
Publikováno v:
Annals of Operations Research. 293:269-293
This paper considers a finite capacity multiserver queue for performance modeling of data centers. One of the most important issues in data centers is to save energy of servers. To this end, a natural policy is to turn off a server immediately once i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::987658e482241dfe1a5fde27a44eece5
https://doi.org/10.1007/s10479-019-03268-1
https://doi.org/10.1007/s10479-019-03268-1
Autor:
Tuan Phung-Duc, Ken'ichi Kawanishi
Publikováno v:
Journal of Industrial & Management Optimization. 15:15-35
This paper considers a multiserver retrial queue with setup time which is motivated from application in data centers with the ON-OFF policy, where an idle server is immediately turned off. The ON-OFF policy is designed to save energy consumption of i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3abc7f855f9c48a4a4c0fd6c848318cc
https://doi.org/10.3934/jimo.2018030
https://doi.org/10.3934/jimo.2018030
Publikováno v:
Lecture Notes in Computer Science ISBN: 9783030918248
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1bd8abb5dd2094fff01df188b65be0a5
https://doi.org/10.1007/978-3-030-91825-5_11
https://doi.org/10.1007/978-3-030-91825-5_11
Autor:
Tetsuya Takine, Ken'ichi Kawanishi
Publikováno v:
J. Appl. Probab. 52, no. 3 (2015), 899-903
In this paper we consider the stationary PH/M/c queue with deterministic impatience times (PH/M/c+D). We show that the probability density function of the virtual waiting time takes the form of a matrix exponential whose exponent is given explicitly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bdd8de1f7203cc59eaf542ba658de9d7
https://doi.org/10.1017/s002190020011352x
https://doi.org/10.1017/s002190020011352x
Autor:
Ken'ichi Kawanishi, Tetsuya Takine
Publikováno v:
Queueing Systems. 82:381-420
This paper considers stationary MAP/M/c and M/PH/c queues with constant impatience times. In those queues, waiting customers leave the system without receiving their services if their elapsed waiting times exceed a predefined deterministic threshold.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::559f0fa7c33662a1c99a38b5322d32f7
https://doi.org/10.1007/s11134-015-9455-9
https://doi.org/10.1007/s11134-015-9455-9
Autor:
Ken'ichi Kawanishi, Tetsuya Takine
Publikováno v:
Performance Evaluation. 134:102002
Motivated by delayed mobile data offloading in cellular networks, we consider an M/PH/1 queue with deterministic impatience times (i.e., the M/PH/1+D queue), where the server takes ON and OFF states alternately and does not serve any customers in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04e4d76caf8b8ce33f33c01ae13dac14
https://doi.org/10.1016/j.peva.2019.102002
https://doi.org/10.1016/j.peva.2019.102002
Autor:
Ken'ichi Kawanishi, Tuan Phung-Duc
Publikováno v:
QTNA
This paper considers a multiserver retrial queue with setup time which is motivated from application in data centers with the ON-OFF policy, where an idle server is immediately turned off. The ON-OFF policy is designed to save energy consumption of i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34231be1a38fb01acc09e5dcb8f9e88e
https://doi.org/10.1145/3016032.3016047
https://doi.org/10.1145/3016032.3016047
Autor:
Ken'ichi Kawanishi, Tuan Phung-Duc
Publikováno v:
Analytical and Stochastic Modelling Techniques and Applications ISBN: 9783319439037
ASMTA
ASMTA
Data centers consume a large amount of energy which has a big impact on the operational cost and the environment. Saving a few percent of power consumption has a considerable impact on the running cost of data centers and on saving our environment. A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb13403b0eaafdb0ecf5ce4a36a895bd
https://doi.org/10.1007/978-3-319-43904-4_19
https://doi.org/10.1007/978-3-319-43904-4_19