Blog: Breaking the Latency Barrier of Modern Satellite Communications
An Increasingly Connected World
Today, data is being generated faster than ever—and in more places than ever before. From deep-sea oil rigs and remote outposts to fast-moving aircraft and orbiting satellites, we live in an increasingly connected world… at least in theory.
In reality, vast distances, even with Low Earth Orbit (LEO) satellites, create high-latency environments resulting in serious roadblocks for moving, accessing, and using data effectively.
And when real-time decision-making is on the line, especially in defense operations, global logistics, or space exploration, delays aren’t just inconvenient—they’re critical. Data is perishable in nature and working with outdated or obsolete information can disrupt operational workflows and hinder effective decision-making for both businesses and mission-critical operations.
Even with novel advancements in communication technology, the challenge is the same: moving high-value data quickly, securely, and reliably across vast and often unpredictable networks. Many satellite links still operate at insufficient speeds—5 to 10 Mbps outbound and 1 to 2 Mbps inbound—making even small transfers sluggish. Even high-throughput satellites (HTS), which promise speeds upwards of 400 Mbps, often underperform due to outdated transmission protocols that waste much of that otherwise available bandwidth.
Meanwhile, modern sensors, cameras, and analytic tools are generating more data than ever before—far more than traditional satellite systems were built to handle.
And yet, sometimes satellite-based communication is your only option. When you’re operating in the middle of the ocean, in remote areas, or on the battlefield, there may be no terrestrial alternative. You need to make satellite work, regardless of its limitations. It’s a poor way to operate, but modern, new novel technologies offer a promise and a way out of the norm.
New Possibilities
Modern approaches are fundamentally reshaping what’s possible using satellite networks.
Instead of relying on traditional techniques like compression or caching (which don’t work well with encrypted or uncompressible files, like high-res video or sensor data), new approaches move files at unprecedented efficiencies and scale across vast distances by maximizing bandwidth utilization and pressurizing or sustaining throughput.. While physics can’t be overcome, drastically limiting the effect of latency after the first bit arrives (that’s the physics part that can’t be changed), incredible network efficiencies are possible… even with single data flows.
What does that look like? Imagine a long, empty garden hose connected to a valve ready to release water. After the valve is turned on, you have to wait for the first drop of water to arrive at the end of the hose. But after that first drop arrives, and assuming the valve is open all the way and water pressure is there, every drop after the first comes at sustained rates or flows. New technologies do the same thing for data over high latency networks. You still have to wait for the first bit of data (the first drop of water), but every bit after the first comes at high throughput or sustainment of whatever bandwidth (size of the garden hose) is available. The result: sustained network throughput over vast distances by mitigating the effect of latency after the first bit.
How is this new solution to an age-old problem possible? It’s not a single nugget of divine knowledge that was miraculously discovered, but rather a deliberate marriage of efficiencies created throughout the communication stack.
Let’s highlight a few elements of the solution:
- Creating advancements in enabling Remote Direct Memory Access (RDMA) communication over global and above distances
- Innovating methods of in-order (and re-order) delivery of data over multiple network transports (even with disparate and varying latency) for functional and consistent bandwidth aggregation
- Introducing new end-to-end flow control mechanisms to ensure packets are not wasted in flight or waiting to be delivered
- Pioneering modern packet loss recovery techniques to minimize costly network retransmissions and restarts
- Devising updated avenues for fine tuning control and flow profiles for varying bandwidth and loss profiles
New Outcomes
- 36x faster transfer over satellite: Reduced data movement from 16 hours to 27 minutes over a 250ms-latency link.
- 163x throughout boost: Increased and sustained usable bandwidth from 3 Mbps to 490 Mbps over a 500Mb/s bandwidth at 500ms-latency satellite connection.
- Intelligent link bonding: Ability to bond and re-order 4 satellite links with over 150ms of difference in latency for increased aggregate throughput.
New Possibilities in Action
These innovations are already making a difference. For defense and intelligence communities, the getting tactical edge intel back to command-and-control centers dramatically improves situational awareness and decision-making speed.
Commercial sectors are benefiting, too. Energy, transportation, and maritime organizations can now securely move uncompressed video, encrypted logs, and sensor outputs across satellite networks—without expensive infrastructure upgrades or new hardware.
Regardless of vertical, now you can do more with existing systems: integrating with existing storage, network and compute platforms sustaining over 90 percent of available bandwidth, accelerating global data transfers, and enabling seamless integration with hybrid cloud architectures.
Ready for the Speed of Now
Data creation is exploding at the edge—on ships, aircrafts, autonomous platforms, and in isolated environments. And increasingly, that data is being processed at the edge, too. But when it comes to connectivity, satellite is often the only path in or out. So, how do you make satellite work for these demanding, modern workloads?
With advanced technologies that overcome bandwidth limitations and latency, organizations can now enable edge inferencing, real-time situational awareness, and high-performance analytics—even over satellite. These innovations unlock the full potential of edge, cloud and core environments, delivering fast, secure access without compromise. As edge operations grow, the ability to maximize satellite isn’t just useful—it’s table stakes to stay mission-ready and future-focused.