Delay-aware sleep control of optical network unit in EPONs using disturbance observer
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- Kikuchi Takahiro
- Department of Electronics and Electrical Engineering, Keio University
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- Kubo Ryogo
- Department of Electronics and Electrical Engineering, Keio University
抄録
<p>Recently, quality-of-service (QoS)-aware cyclic sleep controllers for optical network units (ONUs) have been proposed to guarantee the QoS and energy efficiency in passive optical networks (PONs). Proportional-integral-derivative (PID)-based cyclic sleep controllers can maintain the average downstream queueing delay in an optical line terminal (OLT) at a constant level. However, conventional PID-based controllers generate errors between a target queueing delay and an actual delay because of the nonlinear characteristics of the cyclic sleep mechanism. This letter proposes a feedback controller with a disturbance observer (DOB) that includes a linearized cyclic sleep model to improve the QoS in terms of the average downstream queueing delay. Simulations confirm that the proposed DOB-based controller can reduce errors effectively compared with a PID-based controller.</p>
収録刊行物
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- IEICE Communications Express
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IEICE Communications Express 6 (11), 615-620, 2017
一般社団法人 電子情報通信学会
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詳細情報
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- CRID
- 1390282680391687936
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- NII論文ID
- 130006192306
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- ISSN
- 21870136
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可