Home >> April 2017 Edition >> SatCom Frontier Perspectives: Understanding The New HTS Realities
SatCom Frontier Perspectives: Understanding The New HTS Realities
By SatCom Frontier Editors, courtesy of Intelsat General


The commercial space industry is on the cusp of a new era in satellite performance. In the past two years, multiple commercial satellite operators have begun launching high-throughput satellite (HTS) constellations.

These next-generation satellites will be able to provide far more throughput than existing wideband satellites, with increases in throughput of up to 400 percent.

HTS will enhance the end user experience much like the terrestrial move from dial-up to broadband access. The United States government could greatly benefit from HTS, but not all HTS is created equal. Different satellite operators are taking different approaches to HTS. That’s why it’s important to look at the differences and what they mean for the end user experience.

On the following page is a comparison of four announced HTS providers based on publicly available information. As you can readily see, providers are making different decisions regarding HTS coverage areas, and the band over which to supply connectivity. There are also substantial differences in performance.

Intelsat EpicNG leads in many areas by a wide margin because it incorporates multiple smaller spot-beams with high frequency re-use.  This design delivers performance, coverage footprints, and connectivity efficiency unmatched on any other HTS platform.

Performance on an EpicNG satellite is improved in bits per second per Hertz as well as in the aggregate MHz available and the geographic area covered. EpicNG complements Intelsat’s existing global widebeam coverage areas, providing satellite bandwidth anywhere on the globe.

Space News published a lengthy interview with IGC President Skot Butler late last year. He spoke about the DoD’s appetite for the increased performance Intelsat EpicNG can deliver:

Given the escalating bandwidth demands of governments around the world, we designed Intelsat EpicNG with our customers’ needs front and center,” said Butler. “Our design goal, focusing on efficiency and thus optimizing the throughput to the individual network users, has delivered immediate performance upgrades. Intelsat customers in the enterprise, mobility and wireless infrastructure sectors are using Intelsat EpicNG, in most cases with existing hardware, transitioning seamlessly onto our high performance network. In the same way, EpicNG will support IGC customers as they leverage HTS to deliver high-bandwidth applications to smaller antennas and achieve greater overall network resiliency.”

Intelsat EpicNG offers the government customer more benefits than simply faster throughput. Currently, more than 80 percent of military satellite communications is delivered via Ku-band.

Intelsat EpicNG offers Ku-band and uses an open architecture design for HTS. This means that Intelsat EpicNG can be used immediately by existing customers without any additional investments in their existing antennas or infrastructure.

By contrast, some upcoming HTS platforms are closed architectures, which means they dictate to the end user which terminals and teleport locations must be used.  As Intelsat EpicNG is an open system, it allows the military to purchase dedicated capacity for a specific terminal or group of terminals.

In addition, the throughput of that capacity is dedicated and available to only that user’s terminals.  As such, maximum throughput capabilities can be guaranteed.

The ability to leverage current ground equipment, provision targeted bandwidth and have enforceable SLAs means that Intelsat EpicNG delivers substantial cost savings for the government while maintaining an enormous amount of flexibility.

Delivering HTS performance to smaller and smaller antennas opens up a whole range of non-military uses as well. Small UAS could be used by federal, state and local government officials across a range of applications, including search and rescue, infrastructure monitoring, anti-poaching operations, forest fire suppression and agricultural monitoring. HTS can power a range of new capabilities for government agencies in need of real-time, actionable intelligence.

HTS systems offer quantum leaps forward from the satellite communications of today, but users need to look underneath the hood. Intelsat EpicNG was designed to take full advantage of this next-generation in space-based communications while maximizing Users’ continued use of existing investments

Intelsat EpicNG provides the most compelling value proposition for government customers, and will play a large role in keeping the United States ahead of potential adversaries in space.

The preceding article is courtesy of Intelsat General’s SatCom Frontier infosite and their editorial team.