Next-Generation Token to Fight Piracy and CDN Leeching - $15
Date: April 3, 2024Topics: 2024 BEITC Proceedings, Cybersecurity for BroadcastersContent Delivery Networks (CDNs) are widely used to stream video efficiently across the Internet, but they face persistent challenges from unauthorized access attempts and content piracy, a phenomenon known as CDN leeching. Traditional token-based authentication mechanisms, often relying on long-lived tokens with fixed expiration times, have proven inadequate in addressing these security threats. In response, we propose a novel randomized token rejection mechanism to bolster the security of CDN architectures against unauthorized access attempts. By dynamically adjusting rejection probabilities based on token properties and operational policies, our mechanism enhances CDN resilience while minimizing operational overhead. Furthermore, we present refinements to our approach, including geographic probability of rejection, content-sensitivity, and frequency analysis, to tailor security policies to specific content access patterns. Evaluation results demonstrate the efficacy of our randomized token rejection mechanism in mitigating piracy risks while maintaining operational efficiency. While further research is needed to implement fully transparent token renewal schemes, the current technologies, typically based on the Common Access Token (CAT), already enable the implementation of the randomized token rejection mechanism.
Gwendal Simon | Synamedia | Rennes, France
Gwenaël Doërr | Synamedia | Rennes, France
NEXTGEN Incident Response Communication System – Using ATSC 3.0 - $15
Date: March 21, 2025Topics: 2025 BEITC Proceedings, Getting the Most out of ATSC 3.0This paper provides a timely description of a National Aeronautics and Space Administration (NASA) research project investigating the use of a mobile ATSC 3.0 datacasting station to help support wildland fire management operations. We will discuss a proposed innovation called the NextGen Incident Response Communication System (NIRCS). NIRCS is a rapidly deployable, mobile, long-range broadcast communications system using ATSC 3.0 technology – the digital terrestrial broadcast system built on the internet protocol (IP) – to enable one-way datacasting of IP-compatible data, including ultra-high-definition video, high-fidelity audio, and other types of data packets (e.g., aircraft position messages).
Fred Engel | Device Solutions Inc. | Morrisville, N.C., United States
Tim Bagnall | Mosaic ATM | Leesburg, Va., United States
Mark Corl | Triveni Digital | Princeton, N.J., United States
Chris Pandich, Don Smith | PBS North Carolina | Research Triangle Park, N.C., United States
Jim Stenberg | Over The Air Consulting, LLC | Portland, Maine, United States
Tony Sammarco, Chris Lamb | Device Solutions Inc. | Morrisville, N.C., United States
Off-piste 5G in the Broadcast Auxiliary Service Band - $15
Date: March 21, 2025Topics: 2025 BEITC Proceedings, 5G in Broadcast Spectrum and Video Quality Metrics5G New Radio (NR) can be used to provide flexible, high-capacity and low-latency networks suitable for broadcast content acquisition or delivery, but access to suitable spectrum can be challenging. One of the enablers for private network deployments is shared spectrum licensing, such as the upper n77 band (3.8–4.2 GHz) available in the UK and elsewhere in Europe. The Third Generation Partnership Project (3GPP) was created to develop mobile standards for WCDMA and TD-SCDMA and their respective core networks, and has continued to publish standards as radio access technologies have progressed to 4G and 5G. These standards define frequency bands, numerologies, duplex models and messaging (among many other things). While software-defined radio (SDR) is emerging as a viable and highly flexible solution for core and radio access network (RAN) functions, user equipment (UE) typically remain hardware based with modems that implement the 3GPP standards to ensure device compatibility. The flexibility of SDR RAN allows for wireless radio networks based on 5G NR to be built in non-3GPP defined spectrum bands, but there are no compatible devices to connect. In the USA, broadcasters have access to spectrum in the Broadcast Auxiliary Service (BAS) band (2025–2110 MHz), which coincides with the programme-making and special events (PMSE) band used in the UK and Europe. This allows for rapid licensing of 10/12 MHz channels for traditional wireless camera systems, such as COFDM, that could instead be used to license low-to-medium power private 5G NRbased networks capable of supporting multiple cameras and other IP-based workflows. This paper discusses the development of a flexible software-defined UE capable of connecting to non-3GPP 5G NR networks in BAS/PMSE spectrum.
Douglas G. Allan, Samuel R. Yoffe, Kenneth W. Barlee, Dani Anderson, Iain C. Chalmers, Malcolm R. Brew, Cameron A. Speirs, Robert W. Stewart | Neutral Wireless and University of Strathclyde | Glasgow, Scotland
Nicolas Breant, Jeremy Tastet, Sebastien Roques, Bastien Chague | AW2S | Bordeaux, France
