| Presentation | 2016-01-21 A technique to overcome delay spikes for unmanned vehicle control over mobile networks Masaki Ogura, Ryohei Nakamura, Hisaya Hadama, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | vehicles (UVs) are expected to be useful tools in various fields, and their applications are widely spreading to diverse areas. Remote-controlled UVs need reliable and small delay communication links for transmitting various signals between the UVs and control stations. We think that a mobile network, which is widely available for mobile phone communications with an affordable cost, is a potential candidate to provide such a communication link. To realize it, we have to overcome degradation in communication quality of IP packet transmissions over a mobile network. We focus on video signal transmission from a UV to a control station. Video transmission quality suffers degradation by both transmission delay and loss of IP packets. Especially, delay spikes which often occur in mobile networks significantly disturb UV controls. Because a delay spike causes freeze of the moving video by interrupting continuous transmission of IP packets of a video signal. In this paper, we propose a technique to overcome delay spikes. The technique uses multiple mobile networks and adaptively switches a video stream from a mobile network to other one. We carried out video transmission experiments using two real LTE networks. Our result shows effectiveness of the proposal to reduce of freezing frequency of a video. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Unmanned Vehicle control / remote control / real-time communication / mobile networks / delay spikes |
| Paper # | CS2015-79 |
| Date of Issue | 2016-01-14 (CS) |
| Conference Information | |
| Committee | CS / OCS |
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| Conference Date | 2016/1/21(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kagoshima University, Korimoto Campus, Inamori Auditorium |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Network Core/Metro Systems, Submarine Transmission Systems, Optical Access Systems/Next Generation PON, Ethernet, Optical Transport Network (OTN), Transmission Monitoring and Supervisory Control, Optical Transmission System Design/Tools, Mobile Optical Network |
| Chair | Toshinori Tsuboi(Tokyo Univ. of Tech.) / Kiyoshi Fukuchi(NEC) |
| Vice Chair | Tetsuya Yokotani(Kanazawa Inst. of Tech.) / Akira Hirano(NTT) |
| Secretary | Tetsuya Yokotani(Hiroshima City Univ.) / Akira Hirano(NTT) |
| Assistant | |
| Paper Information | |
| Registration To | Technical Committee on Communication Systems / Technical Committee on Optical Communication Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A technique to overcome delay spikes for unmanned vehicle control over mobile networks |
| Sub Title (in English) | |
| Keyword(1) | Unmanned Vehicle control |
| Keyword(2) | remote control |
| Keyword(3) | real-time communication |
| Keyword(4) | mobile networks |
| Keyword(5) | delay spikes |
| 1st Author's Name | Masaki Ogura |
| 1st Author's Affiliation | National Defense Academy of Japan(NDA) |
| 2nd Author's Name | Ryohei Nakamura |
| 2nd Author's Affiliation | National Defense Academy of Japan(NDA) |
| 3rd Author's Name | Hisaya Hadama |
| 3rd Author's Affiliation | National Defense Academy of Japan(NDA) |
| Date | 2016-01-21 |
| Paper # | CS2015-79 |
| Volume (vol) | vol.115 |
| Number (no) | CS-406 |
| Page | pp.pp.37-42(CS), |
| #Pages | 6 |
| Date of Issue | 2016-01-14 (CS) |