Optimizing Broadcast Spectrum through the Planning of Digital Television Network

2021 ◽  
Vol 16 (2) ◽  
pp. 31-40
Author(s):  
A.O Gbenga-Ilori ◽  
O. I. Ladipo
Keyword(s):  
Coverage Probability ◽  
Single Frequency ◽  
Digital Television ◽  
Network Coverage ◽  
Spectrum Utilization ◽  
Single Frequency Network ◽  
Television Network ◽  
Digital Terrestrial Television ◽  
Digital Dividend ◽  
Analogue To Digital

The transition from analogue to digital television promises an enormous digital dividend that can translate to spectrum resource provision for other services. In this work, the size of the spectrum that can be released as dividend after digital switchover in some selected States of Nigeria is estimated. First, the present analogue television (ATV) network coverage is compared with predicted digital terrestrial television (DTTV) network coverage during a simulcast period, and after ATV switch-off. The predicted DTTV network is initially planned with a multi-frequency network (MFN) and analysis showed that DTTV had a 12.5% improvement in spectrum utilization compared to ATV while achieving a better coverage probability of 95.3%. This work predicted further spectrum savings with the use of a single-frequency network (SFN) design for DTTV network planning. The analysis done showed that 87.5% of the ATV spectrum could be saved for other services after the transition to DTTV using SFN. Keywords: Digital television, SFN, MFN, Spectrum, dividend

scholarly journals Features of Measurements in Single-Frequency Networks of Second Generation Digital Terrestrial Television of the Using the Example of Analysis of Signals of Transmitting Stations of Leningrad Region

Telecom IT ◽  
2019 ◽  
Vol 7 (3) ◽  
pp. 7-12
Author(s):  
А. Buchatsky ◽  
O. Guzenko ◽  
S. Kulikov
Keyword(s):  
Continuous Monitoring ◽  
Single Frequency ◽  
Leningrad Region ◽  
Coverage Area ◽  
Single Frequency Network ◽  
Television Network ◽  
The Status ◽  
Digital Terrestrial Television ◽  
Total Coverage ◽  
Selection Of

Continuous monitoring of the status of the television network is necessary to ensure uninterrupted and high-quality broadcasting of digital air television signals. This report considers the method of measuring the single-frequency network of standard DVB-T2, presents the results of theoretical calculation of the coverage area of several single transmitting stations of digital air television of Leningrad region and shows the results of practical measurements of the total coverage area of DT-TV stations, as well as recommendations on the selection of the location of the control equipment.

Digital Terrestrial Television Broadcasting in 5G

2021 ◽  
pp. 192-235
Author(s):  
Chandrakala K. ◽  
Jaya Kumari J. ◽  
Sreeja T. K.
Keyword(s):  
Cost Effective ◽  
Single Frequency ◽  
Handheld Devices ◽  
Single Frequency Network ◽  
Local Content ◽  
Television Broadcasting ◽  
Generation Network ◽  
Digital Terrestrial Television ◽  
Types Of Information ◽  
Global And Local

Digital multimedia broadcasting is a technology for transmitting multimedia signals to devices like mobile phones, PC, laptops, etc. This allows everyone to watch TV on mobile devices. With the fifth-generation network, one can download a movie in a few seconds. Mobile TV offers round-the-clock participation in communication and broadcasting around the globe. This has become possible by watching a live TV program on handheld devices, as it facilitates real-time updates. Digital terrestrial television broadcasting aimed at transmitting two types of information: global and local content. The global content aims at broadcasting over the entire network, and the local content is location specific. Broadcasting the local content using multiple transmitters at different frequencies in multifrequency network requires additional spectrum. Global content can be transmitted through single frequency network. Therefore, if both global and local information are transmitted in a single frequency network (SFN), the system will become highly spectrally efficient and cost-effective.

A Design of TS Distribution Synchronization Method for DTMB SFN System

2013 ◽  
Vol 475-476 ◽  
pp. 900-906
Author(s):  
He Bai ◽  
Wei Yang ◽  
Jing Fei Cui ◽  
Guo Ting Zhang ◽  
Ting Ting Li
Keyword(s):  
Field Test ◽  
Distribution Networks ◽  
Service Area ◽  
Single Frequency ◽  
Digital Television ◽  
Network Construction ◽  
Single Frequency Network ◽  
Synchronization Method ◽  
Broadcasting System

A single frequency network (SFN) based on the DTMB (Digital Television Terrestrial Broadcasting System) terrestrial digital television (DTV) system normally causes interference among signals from multiple transmitters in the network. These transmitters should broadcast the same program at the same frequency simultaneously in the service area. To meet the SFN network construction requirements in complex transport situation, TS distribution networks synchronization is one of the most important foundations. A design was proposed to insert into each MPEG-TS (SIP) packet with one absolute timestamp in the SFN adapter, which was proved to be valuable insuring the synchronization of the SFN TS distribution through field-test in Ningxia DTMB network.

scholarly journals TDS-OFDM based Digital Television Terrestrial Multimedia Broadcasting Standards

2020 ◽  
Vol 2020 (6) ◽  
pp. 38-49
Author(s):  
Jian Song ◽  
Chao Zhang ◽  
Jintao Wang ◽  
Yonglin Xue ◽  
Changyong Pan ◽  
...  
Keyword(s):  
Orthogonal Frequency Division Multiplexing ◽  
First Generation ◽  
Spectrum Efficiency ◽  
Frame Structure ◽  
Single Frequency ◽  
Digital Television ◽  
Modulation Scheme ◽  
High Definition ◽  
Wide Range ◽  
Digital Terrestrial Television

As the most popularly utilized broadcasting network, digital terrestrial television broadcasting (DTTB) can provide multimedia information coverage for the broad audience in a very efficient way because of its characteristic of wide-range coverage and mobile reception ability. After promulgating the first generation DTTB standard, digital terrestrial/television multimedia broadcasting (DTMB), in 2006, China began to research and develop the next generation DTTB standard, namely DTMB-advanced (DTMB-A), aiming to support higher spectrum efficiency and further improve transmission reliability. In 2019, DTMB-A was accepted by ITU as the second generation international DTTB standard (as System C). Similar to DTMB, time-domain synchronous - orthogonal frequency division multiplexing (TDS-OFDM) based multi-carrier modulation scheme is adopted by DTMB-A. Thanks to the more flexible frame structure, advanced error correction coding and improved constellation mapping, DTMB-A offers 30% higher transmission capacity than DTMB under the same transmission conditions. Thus, DTMB-A can support both fixed and mobile reception more efficiently, and provide users with higher quality services such as ultra-high definition television (UHDTV). This paper first gives details of key technologies at the transmitter of DTMB/DTMB-A and introduce core algorithms at the receiver. Both laboratory test and field trial results will then be provided and analyzed, especially for the application of 4K UHDTV and single frequency network (SFN).

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