• Latest
  • Trending
  • All
  • News
  • TV/Radio Deals
  • Film partnerships
  • New appointments
  • Production
  • TV Channels
Optimising digital television transmission

Optimising digital television transmission

February 12, 2014
Panasonic inks distribution deal with GSL Professional

Panasonic inks distribution deal with GSL Professional

January 31, 2023
Women on a mission

Red Sea Fund announces third edition

January 31, 2023
Cyta installs Ateme’s encoding and packaging solutions

Cyta installs Ateme’s encoding and packaging solutions

January 31, 2023
Anis Djaad’s ‘The Life After’ to premiere at Carthage Film Festival

Algerian film ‘The Life After’ to premiere at Luxor African Film Festival

January 31, 2023
Egypt and India to expand cooperation in space sector

Egypt and India to expand cooperation in space sector

January 31, 2023
Spotify launches new playlist ‘Women of Iran’

Spotify launches new playlist ‘Women of Iran’

January 31, 2023
YahClick and Canar Telecommunication sign $15m deal

YahClick and Canar Telecommunication sign $15m deal

January 31, 2023
Airbus delivers Inmarsat-6 F2 satellite to Florida for launch

Airbus delivers Inmarsat-6 F2 satellite to Florida for launch

January 31, 2023
Egyptian actor Ahmed Malek joins cast of BBC series ‘Boiling Point’

Egyptian actor Ahmed Malek joins cast of BBC series ‘Boiling Point’

January 31, 2023
SynProNize inks deal with Evision for MX Player original series

SynProNize inks deal with Evision for MX Player original series

January 31, 2023
Kenya’s Safaricom appoints new chairman

Kenya’s Safaricom appoints new chairman

January 30, 2023
‘The Woodman’ gets its first Iraqi screening at French Institute

‘The Woodman’ gets its first Iraqi screening at French Institute

January 30, 2023
  • Advertise
  • Subscribe
  • Magazine Archive
  • Directory
  • Contact
Wednesday, February 1, 2023
BroadcastPro ME
  • News
    • All
    • Esports
    • Podcasting
    • Cinema Theatres
    • TV/Radio Deals
    • Film partnerships
    • New appointments
    • Production
    • Mergers/Acquisitions
    • Satellite/Comms
    • AV
    • OTT/Video Streaming
    • International News
    • Analyst Reports
    • Satellite/Broadcasting
    Panasonic inks distribution deal with GSL Professional

    Panasonic inks distribution deal with GSL Professional

    Women on a mission

    Red Sea Fund announces third edition

    Cyta installs Ateme’s encoding and packaging solutions

    Cyta installs Ateme’s encoding and packaging solutions

    Anis Djaad’s ‘The Life After’ to premiere at Carthage Film Festival

    Algerian film ‘The Life After’ to premiere at Luxor African Film Festival

    Egypt and India to expand cooperation in space sector

    Egypt and India to expand cooperation in space sector

    Spotify launches new playlist ‘Women of Iran’

    Spotify launches new playlist ‘Women of Iran’

    YahClick and Canar Telecommunication sign $15m deal

    YahClick and Canar Telecommunication sign $15m deal

    Airbus delivers Inmarsat-6 F2 satellite to Florida for launch

    Airbus delivers Inmarsat-6 F2 satellite to Florida for launch

    Egyptian actor Ahmed Malek joins cast of BBC series ‘Boiling Point’

    Egyptian actor Ahmed Malek joins cast of BBC series ‘Boiling Point’

    SynProNize inks deal with Evision for MX Player original series

    SynProNize inks deal with Evision for MX Player original series

    Trending Tags

    • broadcast
    • MENA broadcast
    • ConnecTech2019
  • Tech Features
    • All
    • CASE STUDIES
    • Virtual Production Series
    • REVIEWS
    • TV/Radio Deals
    • New Media
    From talent to telcos, CEOs discuss industry challenges

    From talent to telcos, CEOs discuss industry challenges

    Key trends shaping the broadcast media landscape

    Key trends shaping the broadcast media landscape

    Tried and Tested: Real techniques of working with a virtual world

    Tried and Tested: Real techniques of working with a virtual world

    Technologies that should be on a broadcaster’s roadmap

    Technologies that should be on a broadcaster’s roadmap

    Magic buttons & busting myths: Debunking the mysteries of virtual prodution

    Magic buttons & busting myths: Debunking the mysteries of virtual prodution

    How VFX and CG can take brands to the next level

    How VFX and CG can take brands to the next level

    Tradition & Tech: Shedding some light on lighting with game engines

    Tradition & Tech: Shedding some light on lighting with game engines

    Virtual vs Physical: The strengths, limitations and crossover of camera

    Virtual vs Physical: The strengths, limitations and crossover of camera

    Moving to a fast future

    Moving to a fast future

    Moving to IP and cloud: Challenges and uptake

    Moving to IP and cloud: Challenges and uptake

    Trending Tags

    • Videos
      Exclusive: Video of the construction of the AlUla studio complex

      Exclusive: Video of the construction of the AlUla studio complex

      Protecting your content – Devising a multi-pronged strategy

      Protecting your content – Devising a multi-pronged strategy

      Gearing up for a FAST audience

      Gearing up for a FAST audience

      Planning Your Hybrid Cloud Playout Journey

      Planning Your Hybrid Cloud Playout Journey

      Qvest on “The cutting edge of Cloud Editing”

      Qvest on “The cutting edge of Cloud Editing”

      Said Bacho on Editshare’s Middle East plans

      Said Bacho on Editshare’s Middle East plans

      Rami Moussawi, Product Manager at ST Engineering iDirect speaks about SKYFlow

      Rami Moussawi, Product Manager at ST Engineering iDirect speaks about SKYFlow

      ASBU BroadcastPro ME Awards Footage

      ASBU BroadcastPro ME Awards Footage

      CEO Panel – Thriving in the New World Order

      CEO Panel – Thriving in the New World Order

    • Opinion
      Creating more engagement in sport

      Creating more engagement in sport

      The Evolution of the Metaverse

      The Evolution of the Metaverse

      New normal inspires fresh storylines and alternative filming strategies

      BroadcastPro Summit and Awards 2022 a big success

      Tackling the creative challenges of HDR

      Tackling the creative challenges of HDR

      New normal inspires fresh storylines and alternative filming strategies

      Get ready for the BroadcastPro Summit and Awards 2022

      IBC2022 reflections: From new business models to riding the economic wave

      IBC2022 reflections: From new business models to riding the economic wave

      New normal inspires fresh storylines and alternative filming strategies

      Reconnecting with the industry

      Ground-Cloud-Cloud-Ground: Creating common practices for cloud production

      Ground-Cloud-Cloud-Ground: Creating common practices for cloud production

      New normal inspires fresh storylines and alternative filming strategies

      Broadcast industry gears up for IBC 2022

      The Future of Cloud-based Broadcasting

      The Future of Cloud-based Broadcasting

    • Interviews
      • All
      • Lounge
      Good Tide-ings

      Good Tide-ings

      Living on the edge

      Living on the edge

      Creating a sound experience

      Creating a sound experience

      Canon’s African dream

      Canon’s African dream

      Rising to the IP challenge

      Rising to the IP challenge

      Sharjah International Film Festival for Children and Youth starts on October 10

      Catch them young

      Taking art seriously

      Taking art seriously

      IBC gears up for 2022 edition

      IBC gears up for 2022 edition

      Capturing the immigrant’s journey

      Capturing the immigrant’s journey

      Akhbar Al Aan on launch of 3eesh Al Aan Café

      Akhbar Al Aan on launch of 3eesh Al Aan Café

    • Products
    • Magazine Archive
      • BroadcastPro ME Magazine
      • PRO Directory
    • Events
      • Upcoming Events
      • News from Events
      IBC 2023

      IBC 2023

      BroadcastPro Tech Summit 2023

      BroadcastPro Tech Summit 2023

      BroadcastAsia 2023

      BroadcastAsia 2023

      CABSAT 2023

      CABSAT 2023

      NABSHOW 2023

      NABSHOW 2023

    No Result
    View All Result
    BroadcastPro ME
    • News
      • All
      • Esports
      • Podcasting
      • Cinema Theatres
      • TV/Radio Deals
      • Film partnerships
      • New appointments
      • Production
      • Mergers/Acquisitions
      • Satellite/Comms
      • AV
      • OTT/Video Streaming
      • International News
      • Analyst Reports
      • Satellite/Broadcasting
      Panasonic inks distribution deal with GSL Professional

      Panasonic inks distribution deal with GSL Professional

      Women on a mission

      Red Sea Fund announces third edition

      Cyta installs Ateme’s encoding and packaging solutions

      Cyta installs Ateme’s encoding and packaging solutions

      Anis Djaad’s ‘The Life After’ to premiere at Carthage Film Festival

      Algerian film ‘The Life After’ to premiere at Luxor African Film Festival

      Egypt and India to expand cooperation in space sector

      Egypt and India to expand cooperation in space sector

      Spotify launches new playlist ‘Women of Iran’

      Spotify launches new playlist ‘Women of Iran’

      YahClick and Canar Telecommunication sign $15m deal

      YahClick and Canar Telecommunication sign $15m deal

      Airbus delivers Inmarsat-6 F2 satellite to Florida for launch

      Airbus delivers Inmarsat-6 F2 satellite to Florida for launch

      Egyptian actor Ahmed Malek joins cast of BBC series ‘Boiling Point’

      Egyptian actor Ahmed Malek joins cast of BBC series ‘Boiling Point’

      SynProNize inks deal with Evision for MX Player original series

      SynProNize inks deal with Evision for MX Player original series

      Trending Tags

      • broadcast
      • MENA broadcast
      • ConnecTech2019
    • Tech Features
      • All
      • CASE STUDIES
      • Virtual Production Series
      • REVIEWS
      • TV/Radio Deals
      • New Media
      From talent to telcos, CEOs discuss industry challenges

      From talent to telcos, CEOs discuss industry challenges

      Key trends shaping the broadcast media landscape

      Key trends shaping the broadcast media landscape

      Tried and Tested: Real techniques of working with a virtual world

      Tried and Tested: Real techniques of working with a virtual world

      Technologies that should be on a broadcaster’s roadmap

      Technologies that should be on a broadcaster’s roadmap

      Magic buttons & busting myths: Debunking the mysteries of virtual prodution

      Magic buttons & busting myths: Debunking the mysteries of virtual prodution

      How VFX and CG can take brands to the next level

      How VFX and CG can take brands to the next level

      Tradition & Tech: Shedding some light on lighting with game engines

      Tradition & Tech: Shedding some light on lighting with game engines

      Virtual vs Physical: The strengths, limitations and crossover of camera

      Virtual vs Physical: The strengths, limitations and crossover of camera

      Moving to a fast future

      Moving to a fast future

      Moving to IP and cloud: Challenges and uptake

      Moving to IP and cloud: Challenges and uptake

      Trending Tags

      • Videos
        Exclusive: Video of the construction of the AlUla studio complex

        Exclusive: Video of the construction of the AlUla studio complex

        Protecting your content – Devising a multi-pronged strategy

        Protecting your content – Devising a multi-pronged strategy

        Gearing up for a FAST audience

        Gearing up for a FAST audience

        Planning Your Hybrid Cloud Playout Journey

        Planning Your Hybrid Cloud Playout Journey

        Qvest on “The cutting edge of Cloud Editing”

        Qvest on “The cutting edge of Cloud Editing”

        Said Bacho on Editshare’s Middle East plans

        Said Bacho on Editshare’s Middle East plans

        Rami Moussawi, Product Manager at ST Engineering iDirect speaks about SKYFlow

        Rami Moussawi, Product Manager at ST Engineering iDirect speaks about SKYFlow

        ASBU BroadcastPro ME Awards Footage

        ASBU BroadcastPro ME Awards Footage

        CEO Panel – Thriving in the New World Order

        CEO Panel – Thriving in the New World Order

      • Opinion
        Creating more engagement in sport

        Creating more engagement in sport

        The Evolution of the Metaverse

        The Evolution of the Metaverse

        New normal inspires fresh storylines and alternative filming strategies

        BroadcastPro Summit and Awards 2022 a big success

        Tackling the creative challenges of HDR

        Tackling the creative challenges of HDR

        New normal inspires fresh storylines and alternative filming strategies

        Get ready for the BroadcastPro Summit and Awards 2022

        IBC2022 reflections: From new business models to riding the economic wave

        IBC2022 reflections: From new business models to riding the economic wave

        New normal inspires fresh storylines and alternative filming strategies

        Reconnecting with the industry

        Ground-Cloud-Cloud-Ground: Creating common practices for cloud production

        Ground-Cloud-Cloud-Ground: Creating common practices for cloud production

        New normal inspires fresh storylines and alternative filming strategies

        Broadcast industry gears up for IBC 2022

        The Future of Cloud-based Broadcasting

        The Future of Cloud-based Broadcasting

      • Interviews
        • All
        • Lounge
        Good Tide-ings

        Good Tide-ings

        Living on the edge

        Living on the edge

        Creating a sound experience

        Creating a sound experience

        Canon’s African dream

        Canon’s African dream

        Rising to the IP challenge

        Rising to the IP challenge

        Sharjah International Film Festival for Children and Youth starts on October 10

        Catch them young

        Taking art seriously

        Taking art seriously

        IBC gears up for 2022 edition

        IBC gears up for 2022 edition

        Capturing the immigrant’s journey

        Capturing the immigrant’s journey

        Akhbar Al Aan on launch of 3eesh Al Aan Café

        Akhbar Al Aan on launch of 3eesh Al Aan Café

      • Products
      • Magazine Archive
        • BroadcastPro ME Magazine
        • PRO Directory
      • Events
        • Upcoming Events
        • News from Events
        IBC 2023

        IBC 2023

        BroadcastPro Tech Summit 2023

        BroadcastPro Tech Summit 2023

        BroadcastAsia 2023

        BroadcastAsia 2023

        CABSAT 2023

        CABSAT 2023

        NABSHOW 2023

        NABSHOW 2023

      No Result
      View All Result
      BroadcastPro ME
      No Result
      View All Result
      Home Tech Features TV/Radio Deals

      Optimising digital television transmission

      Guest Columnist by Guest Columnist
      February 12, 2014
      in TV/Radio Deals, Tech Features
      ShareTweetPostEmail

      As digitisation of television becomes more widespread, the focus is now shifting on achieving impeccable transmission. We look at some of the prerequisites for delivering quality and choice to the viewer in a cost-effective way It is common knowledge in the broadcast industry that all television transmission will eventually move from analogue to digital, and […]

      As digitisation of television becomes more widespread, the focus is now shifting on achieving impeccable transmission. We look at some of the prerequisites for delivering quality and choice to the viewer in a cost-effective way

      It is common knowledge in the broadcast industry that all television transmission will eventually move from analogue to digital, and in many parts of the world this transition has already been completed. The technologies available to achieve this are maturing, so we should now be considering how we can deliver the best viewer experience in digital transmission.

      We can define three fundamental requirements for any transmission system.

      The first and foremost requirement is quality. Audiences perceive digital transmission to be the route to consistently good images and audio. Wherever possible these should be available in high definition, accompanied by surround sound. After 60 years of analogue television, audiences also expect digital to be seamless and flowing smoothly, not beset by freezes and judders.

      The second requirement, which is often used as a justification for analogue switch-off, is increased choice. While maintaining our first goal of quality, we want to pack as many channels into the available bandwidth as we can.

      The third most important requisite is that we should do both these things cost effectively. Budgets are not expanding, so we have to find ways of delivering choice and quality without increasing operational costs.

      We should also remember that various delivery platforms are now in competition. Ease of use and added functionality like the ability to record on PVRs, extra data and “red button” services are also important. One critical element of usability is to include the full service information (SI) on all multiplexes. Known as cross-SI, this enables viewers to browse the electronic programme guides (EPG) on other multiplexes, while still watching their choice of programme, for example, in a picture in picture window.

      What follows are some suggestions of how these requirements can be achieved by optimising the implementation of DVB-T2.

      Terrestrial transmission is still hugely popular because it is relatively simple for consumers to receive through a rooftop aerial. Apart from extreme topographical areas – deep narrow valleys, for instance – it is practical to reach close to 100% of the population. Extra television receivers in the home can be served with no additional equipment.

      Typical transmission networks will have distributed hardware. Individual channels will be delivered from broadcasters to a national headend. There may be regional headends to allow for the insertion of localised content. A regional headend may feed a group of transmitters, or it could be located at a single transmitter.

      Delivering the best quality signal to the headend allows the processor to be more aggressive with the delivery compression without degrading the viewer experience. We recommend using JPEG2000 compression for the circuits from broadcaster to headend to get the best quality for the bitrate. It gives you the option to squeeze harder in the headend, and thereby push through more content.

      Multiplex

      At the headend, a number of channels are multiplexed together into a transport stream, along with other data, such as EPG information, for example. Critical to operational efficiency is to use as much of the capacity as possible, without any content packets being squeezed out.

      The traditional technique was to allow a significant part of the stream for stuffing packets to ensure sufficient headroom whatever happened. The result was the transmission of a large number of null packets: packets containing no data. In some systems this could result in as much as 1 Mb/s of null packets, which in a transport stream of 40 Mb/s is a big loss in efficiency and waste of available resources.

      We developed a technique, originally for broadcasters in the UK, which intelligently manages EPG data in the form of SI packets in the headend. It interprets the data and calculates, according to defined rules, when it must be sent and how frequently it needs repeating. EPG information for the next 24 hours will be repeated more often than information for seven days ahead, for example.

      An opportunistic data inserter then feeds SI information into the multiplex as soon as null packets appear. The result is a typical bitrate saving of 3 to 5% thanks to having virtually no null packets.

      For the JPEG2000 signal from broadcaster to headend, and for the DVB-T2 stream from the headend to the transmitters, it is now standard practice to use IP networks. This is a significant operational cost saving over dedicated video lines and a major boost to efficiency.

      IP networks are now extremely reliable, but the infrastructure must be carefully designed to overcome any problems which do occur. The edge devices in the DTT delivery platform must be protected against packet loss, burst loss, jitter and latency variations. The first step to overcoming these issues is through good forward error correction.

      SMPTE already provides guidance in FEC for transmission networks, through its 2022-1 standard. DVB-T2, which is susceptible to packet loss in the distribution network, will work well given a good implementation. To support the most challenging cases, Nevion offers an extended version of the SMPTE FEC matrix so that the terrestrial signal can safely reach the transmitter sites.

      For even higher resilience, some networks will consider redundant paths from the headend to the transmitter, with the receiving device selecting packets in real time from the stronger input. Broadcasters routinely use redundant paths for critical content like contribution circuits from major sporting events.

      In some territories, the cost of building out a distribution network to a relatively large number of transmitters can be significant. The alternative is to use a satellite to distribute the national signal to transmitters or to regional headends. The national multiplexes can be streamed over DVB-S2 and received at any number of transmitter locations.

      Single frequency network

      Digital transmission has brought about a new way of improving coverage, the single frequency network (SFN). Traditionally, neighbouring transmitters, even if broadcasting the same content, needed to be on different frequencies to eliminate interference. Where countries border each other, there needs to be international agreements to ensure that frequency allocations are clear and one country’s signals do not affect reception in another.

      The single frequency network, as its name suggests, puts all the transmitters in a region or a country on a single set of frequencies. It makes better use of the spectrum, and it allows the network to use many cost-effective lower power transmitters rather than a few high power transmitters. That improves coverage while reducing operational costs and releasing spectrum for more television and other services.

      The challenge for SFNs is that each transmitter must carry an identical signal and be precisely synchronised. The lack of interference comes from the fact that each transmitter is radiating exactly the same information at exactly the same instant. As long as the distance to a receiver from the SFN transmitters are within the guard interval, the beams add up and become a stronger signal.

      The other challenge is that broadcasters will want to insert local content into national channels. This may be regionalised advertising, or local news, or area-specific programming. Because the SFN expects the transport stream to be identical, the usual solution to local content is to combine the national and local content at a local headend.

      To combine this with satellite distribution is clearly a poor use of bandwidth as the common services will need to be sent multiple times. A better option is to use a deterministic multiplexing solution which can allow local insertion. This uses a time stamp in the satellite feed and a set of rules for the multiplexing process.

      This allows multiplexers in each region to rebuild identical streams as required for SFN operations. Each multiplexer at each transmitter site will build, packet for packet, an identical combination of national and local services. Deterministic re-multiplexing allows local content to be added to national signals without disturbing the SFN integrity of the transmission.

      These technologies, along with other functionality and intelligent network monitoring and management, combine to maximise the effectiveness and efficiency of a digital terrestrial transmission network. Using the best of today’s technology, broadcasters and network operators can offer their audiences a broad choice of channels, in excellent technical quality and high availability, while controlling the costs of the distribution and transmission network.

       

      Tags: NeviontransmissionPVR

      Related Posts

      Nevion launches media orchestration platform VideoIPath

      Nevion launches media orchestration platform VideoIPath

      August 26, 2022
      Nilesat and TVU Networks expand partnership and transmission service in Africa

      Nilesat and TVU Networks expand partnership and transmission service in Africa

      October 27, 2021
      Nevion founder Thomas Heinzer becomes company’s CEO

      Nevion founder Thomas Heinzer becomes company’s CEO

      August 23, 2021
      Sony acquires Nevion

      Sony acquires Nevion

      September 30, 2020
      82% of broadcasters expect 5G to take over TV content access: Nevion

      82% of broadcasters expect 5G to take over TV content access: Nevion

      July 19, 2020
      Al Kass Sports Channels opt for Nevion to transition from SDI to IP

      Al Kass Sports Channels opt for Nevion to transition from SDI to IP

      April 7, 2020

      Related News

      Nevion launches media orchestration platform VideoIPath

      Nevion launches media orchestration platform VideoIPath

      August 26, 2022
      Nevion founder Thomas Heinzer becomes company’s CEO

      Nevion founder Thomas Heinzer becomes company’s CEO

      August 23, 2021
      Sony acquires Nevion

      Sony acquires Nevion

      September 30, 2020
      82% of broadcasters expect 5G to take over TV content access: Nevion

      82% of broadcasters expect 5G to take over TV content access: Nevion

      July 19, 2020
      Al Kass Sports Channels opt for Nevion to transition from SDI to IP

      Al Kass Sports Channels opt for Nevion to transition from SDI to IP

      April 7, 2020
      IABM appoints new board members

      IABM appoints new board members

      July 16, 2019
      More Related News

      Popular Stories

      • Joy Awards 2023 announces winners for third edition

        Joy Awards 2023 announces winners for third edition

        1383 shares
        Share 553 Tweet 346
      • Netflix streams Turkish supernatural thriller ‘Shahmaran’

        1180 shares
        Share 472 Tweet 295
      • Du becomes GCF Field Test Qualified Operator to deploy 5G

        881 shares
        Share 352 Tweet 220
      • ETL Systems appoints Kevin Dunne as new CEO

        726 shares
        Share 290 Tweet 182
      • MBC Group and VICE Media Group sign exclusive content deal

        716 shares
        Share 286 Tweet 179

      BroadcastPro ME

      • About
      • Advertise
      • Subscribe
      • Magazine Archive
      • Directory
      • Contact
      • Privacy

      Follow us on Social Media

      No Result
      View All Result
      • News
      • Tech Features
      • Videos
      • Opinion
      • Interviews
      • Products
      • Magazine Archive
        • BroadcastPro ME Magazine
        • PRO Directory
      • Events

      Login to your account below

      Forgotten Password?

      Fill the forms bellow to register

      All fields are required. Log In

      Retrieve your password

      Please enter your username or email address to reset your password.

      Log In
      Social Media Auto Publish Powered By : XYZScripts.com