| Presentation | 2017-07-27 [Invited Talk] A Study on Bit Reduction for Optical Video Distribution System Using Digitized-RoF Transmission Ryota Shiina, Toshihito Fujiwara, Tomoki Sugawa, Satoshi Ikeda, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | As a wired rebroadcasting service, RF transmission system with HFC or FTTH has been widely used to transmit broadcasting signals via Digital Terrestrial Television, Broadcasting Satellite and Communication Satellite. However, the RF transmission system has some problems such as increase of CAPEX/OPEX, since the system needs a dedicated network constructed only for the analog transmission. Therefore, we have been proposed a novel digital video transmission system using DRoF (Digitized Radio over Fiber) technology, which realizes the digital transmission of the RF-based broadcasting signals with retaining the existing input/output interface of the RF signal to/from the transmission network. This system also enables RF-based broadcasting signals to overlay on the exiting digital communication system by sharing the network equipment. In this paper, we investigated the relationship between required quantization number and the input CNR to Tx in the proposed system when transmitting 10 channels multiplexed Digital Terrestrial Television signals. Furthermore, in order to reduce the transmission rate, the quantization bits reduction methods were applied, and these effects were verified by simulation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Optical Video Distribution System / RF Signal / DRoF / Rebroadcasting / Optical-Retransmission / Transmission Rate Reduction |
| Paper # | CS2017-26 |
| Date of Issue | 2017-07-20 (CS) |
| Conference Information | |
| Committee | CS |
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| Conference Date | 2017/7/27(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Fukue Bunka Kaikan |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Next generation networks, access network, broadband access system, power-line communications, wireless communication systems, coding system, etc. |
| Chair | Tetsuya Yokotani(Kanazawa Inst. of Tech.) |
| Vice Chair | Hidenori Nakazato(Waseda Univ.) |
| Secretary | Hidenori Nakazato(Kyushu Univ.) |
| Assistant | Kenji Kanai(Waseda Univ.) / Kazutaka Hara(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Communication Systems |
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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 Study on Bit Reduction for Optical Video Distribution System Using Digitized-RoF Transmission |
| Sub Title (in English) | |
| Keyword(1) | Optical Video Distribution System |
| Keyword(2) | RF Signal |
| Keyword(3) | DRoF |
| Keyword(4) | Rebroadcasting |
| Keyword(5) | Optical-Retransmission |
| Keyword(6) | Transmission Rate Reduction |
| 1st Author's Name | Ryota Shiina |
| 1st Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 2nd Author's Name | Toshihito Fujiwara |
| 2nd Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 3rd Author's Name | Tomoki Sugawa |
| 3rd Author's Affiliation | NTT Advanced Technology Corporation(NTT-AT) |
| 4th Author's Name | Satoshi Ikeda |
| 4th Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| Date | 2017-07-27 |
| Paper # | CS2017-26 |
| Volume (vol) | vol.117 |
| Number (no) | CS-156 |
| Page | pp.pp.65-70(CS), |
| #Pages | 6 |
| Date of Issue | 2017-07-20 (CS) |