| Paper Abstract and Keywords |
| Presentation |
2026-07-16 15:20
[Invited Lecture]
Study on a Next-Generation STL/TTL Transmission System
Tomohiro Shimazaki, Tetsuya Umenai, Takayuki Nakagawa, Naohiko Iai, Kazuhiro Otsuki (NHK) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
This paper describes a next-generation Studio-to-Transmitter Link/Transmitter-to-Transmitter Link (STL/TTL) transmission system compliant with Advanced Integrated Services Digital Broadcasting - Terrestrial (ISDB-T3). Compared with the current STL/TTL, the next-generation system is required to achieve both higher transmission capacity and higher reliability. To meet these requirements, the introduction of Orthogonal Frequency Division Multiplexing (OFDM), high-order modulation with adaptive modulation, and polarization-based Multiple-Input Multiple-Output (MIMO) is being investigated, while ensuring coexistence with existing STL/TTL systems and effective utilization of existing facilities. In particular, polarization MIMO enables a significant increase in transmission capacity within the same frequency band. On the other hand, the introduction of these technologies requires careful consideration of interference with existing wireless systems and their impact on link design. This paper summarizes the technical conditions based on comparisons with the current system and discusses link design criteria, including required Carrier-to-Noise ratio (C/N) and link quality. In addition, candidate OFDM frame configurations satisfying the technical requirements are presented and their characteristics are discussed. Field experiments are conducted to evaluate and verify the proposed transmission system. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
STL/TTL / Microwave relay line / OFDM / MIMO / / / / |
| Reference Info. |
ITE Tech. Rep., vol. 50, no. 19, BCT2026-46, pp. 13-18, July 2026. |
| Paper # |
BCT2026-46 |
| Date of Issue |
2026-07-09 (BCT) |
| ISSN |
Online edition: ISSN 2424-1970 |
| Download PDF |
|
| Conference Information |
| Committee |
BCT IEEE-BT HOKKAIDO |
| Conference Date |
2026-07-16 - 2026-07-17 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
|
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
Broadcast Operating, Transmission & Reception, Program creation, Broadcast master control , etc |
| Paper Information |
| Registration To |
BCT |
| Conference Code |
2026-07-BCT-BT-HOKKAIDO |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Study on a Next-Generation STL/TTL Transmission System |
| Sub Title (in English) |
|
| Keyword(1) |
STL/TTL |
| Keyword(2) |
Microwave relay line |
| Keyword(3) |
OFDM |
| Keyword(4) |
MIMO |
| Keyword(5) |
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| Keyword(6) |
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| 1st Author's Name |
Tomohiro Shimazaki |
| 1st Author's Affiliation |
Japan Broadcasting Corporation (NHK) |
| 2nd Author's Name |
Tetsuya Umenai |
| 2nd Author's Affiliation |
Japan Broadcasting Corporation (NHK) |
| 3rd Author's Name |
Takayuki Nakagawa |
| 3rd Author's Affiliation |
Japan Broadcasting Corporation (NHK) |
| 4th Author's Name |
Naohiko Iai |
| 4th Author's Affiliation |
Japan Broadcasting Corporation (NHK) |
| 5th Author's Name |
Kazuhiro Otsuki |
| 5th Author's Affiliation |
Japan Broadcasting Corporation (NHK) |
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| Speaker |
Author-1 |
| Date Time |
2026-07-16 15:20:00 |
| Presentation Time |
30 minutes |
| Registration for |
BCT |
| Paper # |
BCT2026-46 |
| Volume (vol) |
vol.50 |
| Number (no) |
no.19 |
| Page |
pp.13-18 |
| #Pages |
6 |
| Date of Issue |
2026-07-09 (BCT) |