https://revistaeletronica.set.org.br/ijbe/issue/feed SET INTERNATIONAL JOURNAL OF BROADCAST ENGINEERING 2021-05-10T19:48:55-03:00 SET webmaster@set.org.br Open Journal Systems <div class="edgtf-st-title-holder"> <h2 class="edgtf-st-title"><strong>SET INTERNATIONAL JOURNAL OF BROADCAST ENGINEERING</strong></h2> </div> <div class="edgtf-separator-holder clearfix edgtf-separator-center"> <div class="edgtf-separator"><span style="font-size: 0.875rem;">The </span><strong style="font-size: 0.875rem;">SET-IJBE, the SET International Journal of Broadcast Engineering</strong><span style="font-size: 0.875rem;"> is an open access, peer-reviewed article-at-a-time publication international scientific journal whose objective is to cover knowledge about communications engineering in the field of broadcasting. The SET IJBE seeks the latest and most compelling research articles and state-of-the-art technologies.</span></div> </div> <p><strong>ISSN (Print): 2446-9246<br /></strong><strong>ISSN (On-line): 2446-9432</strong></p> <p>Impact factor: under attribution</p> <p><strong>On-line version</strong> - Once an article is accepted and its final version approved by the Editorial Board, it will be published immediately on-line on a one article-at-a-time basis</p> <p><strong>Printed version</strong> - Once a year, all articles accepted and published on-line over the previous twelve months will be compiled for publication in a printed version.</p> https://revistaeletronica.set.org.br/ijbe/article/view/202 Fixed Reception Performance of FDM-based Transmission System for Advanced ISDB-T 2021-05-10T18:17:25-03:00 Takuya Shitomi shitomi.t-gy@nhk.or.jp <p>With the aim of improving the quality and expanding the functions of digital terrestrial television broadcasting services, we have been developing an advanced transmission system that inherits key features of the current Integrated Services Digital Broadcasting-Terrestrial (ISDB-T) system, which employs hierarchical transmission based on frequency division multiplexing (FDM) and a segment structure. The advanced ISDB-T system has a new signal frame structure that enables bandwidth to be flexibly allocated to multiple services for different reception scenarios, such as fixed reception and mobile reception, compared with ISDB-T. By introducing transmission technologies such as the latest forward error correction and modulation scheme, this specification has high spectral efficiency and transmission robustness, i.e., the transmission capacity increases by about 10 Mbps for the same required carrier to noise ratio (CNR) in comparison with the current ISDB-T system, or the required CNR can be reduced by about 7 dB for the same transmission capacity. We describe the channel coding scheme and evaluated the performance of bit-interleaved coded modulation (BICM) in simulations. This paper provides a BICM selection guideline based on the simulation results for fixed reception scenarios toward the practical application of advanced ISDB-T.</p> 2021-05-10T00:00:00-03:00 Copyright (c) https://revistaeletronica.set.org.br/ijbe/article/view/203 ATSC 3.0 for Future Broadcasting: Features and Extensibility 2021-05-10T19:11:30-03:00 Sung -IK Park psi76@etri.re.kr <p>A recent development of Advanced Television Systems Committee (ATSC) 3.0 has made over-the-air services of a 4K ultra-high-definition and a simultaneous multiple high-definition soft-landed to the reality. However, ATSC 3.0 is in essence designed to be forward compatible, and is hence able to provide better extensible features to enrich the next media era beyond this initial deployment. This paper introduces several selected features of ATSC 3.0 that could play a prominent role in the near future. This investigation encompasses the optional technologies defined in ATSC 3.0 physical-layer which can improve single frequency network integrity, enable additional features in other domains, or further widen the throughput capability. Majorly focused on the extensibility of ATSC 3.0, we also elaborate on possible inter-network cooperation with broadband and cellular systems.</p> 2021-05-10T00:00:00-03:00 Copyright (c) https://revistaeletronica.set.org.br/ijbe/article/view/201 TDS-OFDM based Digital Television Terrestrial Multimedia Broadcasting Standards 2021-05-10T19:17:05-03:00 Chao Zhang z_c@tsinghua.edu.cn Jian Song jsong@tsinghua.edu.cn Jintao Wang wangjintao@tsinghua.edu.cn Yonglin Xue xueyl@tsinghua.edu.cn Changyong Pan pcy@tsinghua.edu.cn Kewu Peng pengkw@tsinghua.edu.cn Fang Yang fangyang@tsinghua.edu.cn Jun Wang wjun@tsinghua.edu.cn Hui Yang huiyang@tsinghua.edu.cn Yu Zhang zhang-yu@tsinghua.edu.cn Zhixing Yang yangzhx@tsinghua.edu.cn <p>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).</p> 2021-05-10T00:00:00-03:00 Copyright (c) https://revistaeletronica.set.org.br/ijbe/article/view/207 Practical tests with MMT and ROUTE/DASH on the transport layer of ATSC 3.0 2021-05-10T19:41:58-03:00 Allan Seiti Sassaqui Chaubet allanchaubet@gmail.com George Henrique Maranhão Garcia de Oliveira george.oliveira@mackenzie.br Cristiano Akamine akamine@ieee.org <p>MPEG-2 TS has been widely explored by digital TV systems for years but given the appearance of new technologies and the spread of the Internet and streaming services, new methods had to be developed to deliver broadcast content over IP. A historic background is presented for two protocols proposed to the next generation of digital TV, MMT and ROUTE/DASH, as well as their properties. This paper presents a comparison between these two protocols for the modern ATSC 3.0.</p> 2021-05-10T00:00:00-03:00 Copyright (c) 2020 SET INTERNATIONAL JOURNAL OF BROADCAST ENGINEERING https://revistaeletronica.set.org.br/ijbe/article/view/208 Future Vision of Interactive and Intelligent TV Systems using Edge AI 2021-05-10T19:27:35-03:00 Alan LV Guedes alanlivio@gmail.com <p>Recently the Brazilian DTV system standards have been upgraded, called TV 2.5, in order to provide a better integration between broadcast and broadband services. The next Brazilian DTV system evolution, called TV 3.0, will address more deeply this convergence of TV systems not only at low-level network layers but also at the application layer. One of the new features address by this future application layer is the use of Artificial Intelligence technologies. Recently, there have been practical applications using Artificial Intelligence (AI) deployed to improves TV production efficiency and correlated cost reduction. The success in operationalize and evaluate these applications is a strong indication of the interest and relevance of AI in TV. This paper present TeleMídia Lab’s future vision on interactive and intelligent TV Systems, which particularly focus on edge AI. Edge AI means use indevice capabilities to run AI applications instead of run them in cloud.</p> 2021-05-10T00:00:00-03:00 Copyright (c) 2020 SET INTERNATIONAL JOURNAL OF BROADCAST ENGINEERING https://revistaeletronica.set.org.br/ijbe/article/view/212 Hybrid Architecture CDN/Peer-to-Peer for Live Video Distribution over the Internet 2021-05-10T19:48:55-03:00 Guido Lemos de Souza Filho guido@lavid.ufpb.br <p>With the spike of investment on Internet streaming services by the large multimedia conglomerates and the inherent preference of multimedia content over text-based by the users, video distribution is dominating the traffic over the Internet. Despite the audience record in live events and the desire of large media companies to increase the amount of online broadcasts, challenges related to scalability, economic costs and the quality of consumer’s experience of these transmissions are still an open issue. The work proposed in this paper makes use of modern technologies such as WebRTC and the HLS (HTTP Live Streaming) protocol to suggest that the use of a hybrid Peer-to-Peer/CDN model is able to relieve the amount of requests to video chunks on content servers, reducing transmission cost and, by using the distributed computing inherent to peer-to-peer systems, promote a better average video quality, user experience and system scalability.</p> 2021-05-10T00:00:00-03:00 Copyright (c) 2021 SET INTERNATIONAL JOURNAL OF BROADCAST ENGINEERING