| Presentation | 2018-08-23 [Invited Talk] A predictive control method for a remote control system through a network with delay fluctuation Hiroshi Yoshida, Shinya Yasuda, Taichi Kumagai, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Under the concept of Internet of Things (IoT), various machines are beginning to be controlled remotely through the Internet and wireless IP networks.However, such an IP packet exchange network brings about large time delay fluctuation due to the nature of its packet queue. The delay is called dead time in control theory and makes it difficult to stabilize remote control.State-predictive control is effective for control systems containing dead time. The state-predictive control predicts the future state that the control input will arrive at the target, and calculates a control input on the basis of the predicted state. However, the conventional state-predictive controls cannot deal with the remote control systems through IP networks that have large delay fluctuation. This is because their prediction horizon (supposed dead time) is preliminarily set to a fixed value, which makes the predicted state different from the actual one. In this paper, we propose a novel state-predictive control that adjusts the prediction horizon dynamically on the basis of a real-time prediction of the time-varying delay. A simulation using actual delay data obtained on a WLAN network shows that the proposed method improves the stability and robustness of remote control through a network that has large delay fluctuation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | State-Predictive Control / Delay / Jitter / Dead Time / Remote Control |
| Paper # | CQ2018-50 |
| Date of Issue | 2018-08-16 (CQ) |
| Conference Information | |
| Committee | CQ |
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| Conference Date | 2018/8/23(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Ritsumeikan Univ. Biwako-Kusatsu Campus (BKC) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | IoT/M2M, Wireless Communication, QoS and QoE in Wireless Communication, Wireless Resource Allocation, Wireless Transmission Quality, Cross layer Technology, Ad-hoc Network, etc. |
| Chair | Takanori Hayashi(Hiroshima Inst. of Tech.) |
| Vice Chair | Hideyuki Shimonishi(NEC) / Jun Okamoto(NTT) |
| Secretary | Hideyuki Shimonishi(NTT) / Jun Okamoto(Nippon Inst. of Tech.) |
| Assistant | Chikara Sasaki(KDDI Research) / Yoshiaki Nishikawa(NEC) / Ryo Yamamoto(UEC) |
| Paper Information | |
| Registration To | Technical Committee on Communication Quality |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Invited Talk] A predictive control method for a remote control system through a network with delay fluctuation |
| Sub Title (in English) | |
| Keyword(1) | State-Predictive Control |
| Keyword(2) | Delay |
| Keyword(3) | Jitter |
| Keyword(4) | Dead Time |
| Keyword(5) | Remote Control |
| 1st Author's Name | Hiroshi Yoshida |
| 1st Author's Affiliation | NEC Corporation(NEC Corp.) |
| 2nd Author's Name | Shinya Yasuda |
| 2nd Author's Affiliation | NEC Corporation(NEC Corp.) |
| 3rd Author's Name | Taichi Kumagai |
| 3rd Author's Affiliation | NEC Corporation(NEC Corp.) |
| Date | 2018-08-23 |
| Paper # | CQ2018-50 |
| Volume (vol) | vol.118 |
| Number (no) | CQ-192 |
| Page | pp.pp.23-27(CQ), |
| #Pages | 5 |
| Date of Issue | 2018-08-16 (CQ) |