Call: 1-877-697-2926

Viasat to demonstrate communications tech for DIU's Hybrid Space Architecture initiative

Viasat has confirmed its selection by the Defense Innovation Unit (DIU) to participate in the Hybrid Space Architecture project—an initiative designed to accelerate the adoption of commercial innovation into the national security space ecosystem. Through this partnership, Viasat will demonstrate cutting-edge space communication technologies that enable dynamic, secure, and interoperable data flow across military and commercial satellite networks.

Spearheaded by DIU, the Hybrid Space Architecture blends government-owned assets with commercial space capabilities, creating a more resilient and redundant communications backbone for U.S. defense operations. The ability to move data reliably across different orbital regimes—LEO, MEO, and GEO—regardless of the satellite provider or system, eliminates silos and strengthens command, control, and communication across domains.

In an operational environment that demands speed, agility, and constant awareness, secure communication infrastructure isn’t optional—it defines mission success. This initiative reshapes how U.S. military services interface with emerging commercial players, opening pathways for faster response times and greater survivability across contested spaces.

This blog explores how Viasat’s involvement could directly influence military communications architecture moving forward and what the collaboration between defense entities and private space innovators means for the future of satellite interoperability and resilience.

Redefining the Battlefield: The Strategic Shift in Military Space Communications

From Government-Owned Assets to Agile Commercial Capabilities

Military communications have undergone a fundamental shift over the last two decades. Traditionally, space assets supporting defense operations were government-owned, purpose-built, and tightly controlled. These systems delivered highly secure communications but lacked flexibility and came with steep development costs and long lead times. Today, that model no longer aligns with the pace of technological transformation or the complexity of modern conflict.

The rise of commercial space capabilities, including low Earth orbit (LEO) satellite constellations and high-throughput geostationary systems, has introduced rapid innovation cycles, lower costs, and global coverage. Private-sector firms now provide services once monopolized by national defense organizations, from Earth observation to secure broadband connectivity. Defense agencies have recognized the strategic value of integrating commercial networks into mission-critical operations.

A Vision for Hybrid: DoD’s Strategic Approach

The Department of Defense has formalized a vision for a hybrid space architecture—one that spans multiple orbital regimes, includes both commercial and government-owned assets, and relies on a portfolio of providers rather than a singular system. The goal is not only to match technological pace but to outmaneuver strategic competitors through adaptability and redundancy.

This architectural shift supports several critical objectives:

Defense leaders see these advancements not as optional upgrades but as structural necessities. In contested space environments, agility and redundancy will dictate whether missions succeed or fail. The hybrid model provides a path to that outcome by combining the robustness of government systems with the speed and scale of commercial innovation.

Viasat: A Leader in Advanced Space Communications

Global Communications Expertise Rooted in Innovation

Viasat operates as a global communications company specializing in high-capacity satellite systems, secure networking technologies, and cloud-based connectivity services. With a diverse portfolio spanning defense, government, enterprise, and consumer markets, Viasat delivers integrated satellite and networking solutions across geographies and mission sets. The company’s reputation for pioneering broadband satellite innovations places it at the forefront of space-based communications.

Trusted Partner in Government and Defense Initiatives

Over two decades of collaboration with the U.S. Department of Defense (DoD) have solidified Viasat’s role as a trusted defense partner. The company has supported critical missions through tactical data links, encrypted communications, and SATCOM services tailored for contested environments. Programs like the Joint Tactical Radio System (JTRS), Multifunctional Information Distribution System (MIDS), and Link 16 enhancements highlight sustained innovation across air, land, and maritime domains. Viasat’s involvement in space-based demonstration efforts with agencies including the Defense Advanced Research Projects Agency (DARPA) and the U.S. Space Force further illustrates its deep integration into the national security ecosystem.

Core Capabilities Driving Operational Superiority

Technical Expertise Across the Space Communications Ecosystem

Viasat commands deep technical proficiency in building and managing space-based communications infrastructure. Its vertically integrated approach spans satellite payload design, ground network architecture, waveform development, and cybersecurity hardening. This systems-level expertise enables rapid response to shifting military requirements, including the growing emphasis on hybrid satellite architectures, optical inter-satellite links, and AI-enabled network orchestration.

By combining aerospace-grade engineering with agile network innovation, Viasat continues to shape next-generation space communications solutions aligned with evolving defense objectives.

Understanding the DIU’s Hybrid Space Architecture (HSA)

Building a Network that Spans Orbits and Organizations

The Hybrid Space Architecture (HSA) isn't just a concept. It's the Department of Defense's effort—spearheaded by the Defense Innovation Unit (DIU)—to create a fully interoperable communications framework that fuses commercial and government space systems. Instead of operating in silos, diverse satellite assets across various orbital layers will coordinate in real time through secure, unified data pathways.

Purpose: A Cohesive Framework for Modern Battlespace Connectivity

At the core of HSA lies one clear objective: streamline secure communications across domains by integrating all layers of space infrastructure. This framework must function in contested environments, at high speed and scale, and remain adaptable to new capabilities. HSA eliminates the disconnect between disparate assets—bridging legacy government satellites with state-of-the-art commercial platforms.

Defining the HSA’s Strategic Goals

Tactical and Strategic Advantages for the DoD

With HSA in place, the Department of Defense gains layered resiliency across its space communication grid. It reduces response times, enhances data availability, and ensures constant contact with operations worldwide—regardless of geography or adversarial activity. Because the architecture is built to scale and adapt, it can integrate emerging technologies without interrupting ongoing operations.

Strategically, HSA neutralizes rigid communication bottlenecks. It gives warfighters access to the best technology—commercial or military—when they need it most, in any orbit, in any domain.

Viasat’s Strategic Contribution to the HSA Demonstration

Operational Responsibilities Within the DIU-Led Initiative

Under the Defense Innovation Unit’s Hybrid Space Architecture (HSA) program, Viasat holds a pivotal role in proving out next-generation defense communications. The company is tasked with integrating its commercial-grade technologies into a multi-orbit, space-to-ground communication ecosystem that bridges disparate assets across government and industry partners.

Viasat leads the demonstration of several core systems engineered to validate critical aspects of the HSA framework. These include cross-network communication, real-time data delivery, and dynamic network adaptation. The assigned scope covers end-user connectivity, interoperability with existing satellites across multiple orbital regimes, secure data transport, and management of tactical data flows between DoD users and space-based resources.

Interoperable Terminals for Multi-Orbit Connectivity

At the center of Viasat’s deliverables are its advanced, interoperable satellite terminals designed to operate seamlessly across geostationary (GEO), medium earth orbit (MEO), and low earth orbit (LEO) networks. These terminals support agile frequency band switching, adaptive modulation schemes, and real-time waveform adjustments—all without requiring hardware changes.

Software-Defined Networking: Flexibility at Mission Speed

Viasat’s integration of software-defined networking (SDN) capabilities into the HSA architecture enables real-time routing decisions based on latency, congestion, and link stability. This software layer interfaces with dynamic mission operations and prioritizes data transport based on tactical requirements.

Using SDN, the demonstration validates:

Encryption & Cybersecurity in a Multi-Vendor Network

Viasat’s secure communication protocols, already deployed in operational DoD environments, take center stage in proving the HSA’s resistance to cyber threats. The demonstration features scalable end-to-end encryption embedded into every data transfer path.

Security elements include:

Defined Technical Outcomes for the Demonstration

The DIU’s intent with the HSA demonstration goes beyond hardware validation. Viasat is designated to achieve a clear set of technical benchmarks:

This phase of the program positions Viasat as a linchpin in confirming how commercial innovation can reinforce government operations inside contested space and electromagnetic environments. Every node, terminal, and packet moved through the network underpins that objective.

The demonstration is ongoing, with evaluations continuing through real-world simulated operations, stress-testing the network’s resilience, scalability, and mission utility. What systems will pass the test? What gaps will emerge under pressure? Each answer brings clarity to the foundation of hybrid space communications for U.S. defense forces.

Space-Based Connectivity and the Role of Commercial Innovation

Low Earth orbit (LEO) satellites are reshaping the communication landscape, especially for defense systems seeking faster, more resilient connections. As latency drops and coverage expands, military systems can now access real-time data streams even in contested or remote environments. Traditional geostationary systems can’t match the responsiveness LEO constellations now deliver.

Viasat integrates these LEO capabilities into holistic hybrid architectures—merging government and commercial assets across multiple orbits. This approach doesn’t just bridge performance gaps; it injects operational flexibility into defense communication infrastructure. When terrestrial or singular-orbit systems face interference or degradation, hybrid networks dynamically reroute traffic using alternative commercial channels without operational pause.

Commercial firms, and Viasat in particular, are rewriting the rules of interoperability and survivability in space-based communications. By contributing both hardware and platforms—satellites, software-defined networking tools, and managed services—they blur the old boundaries between public and private space sectors. This synergy accelerates system readiness, broadens backup capacity, and sidesteps the long procurement delays that traditionally slowed down military adoption.

Looking for real-world precedents? Examine the Commercial Integration Cell (CIC) formed by U.S. Space Command. This initiative, which includes Viasat, formalized cooperation between commercial satellite operators and military planners to ensure seamless data sharing during crises. Or take the Air Force's Pathfinder projects. These demonstrate how leasing commercial SATCOM capacity has become not just viable, but strategically beneficial, reducing costs and deployment timeframes dramatically.

Through cooperative frameworks like these, commercial innovation isn’t just participating—it’s actively steering the future of U.S. defense operations in space.

The Strategic Edge: Interoperability, Resiliency, and the Future of Defense Communications

A Vision Beyond One Demonstration

Viasat’s participation in the Defense Innovation Unit’s Hybrid Space Architecture represents more than a technology demonstration—it signals a move toward a fundamentally different architecture for U.S. defense communications. By creating systems that talk to each other across vendors, platforms, and domains, Viasat contributes directly to an evolving military doctrine shaped by speed, adaptability, and constant connectivity.

Interoperability at the Core of Multi-Domain Operations

Modern defense operations span land, sea, air, cyber, and space. Interoperable communications systems—those capable of exchanging data between disparate networks and platforms—are a requirement for coordinated response across these domains. Viasat’s systems integrate government and commercial networks into a unified operational view, enabling forces to receive actionable intelligence in real time, regardless of the origin or path of transmission.

The interoperability factor becomes even more pronounced when joint and allied forces come into play. Systems must align with partner technologies without compromising on speed or security. Viasat’s IP-based satellite communication solutions allow seamless integration across coalition networks, supporting data sharing while maintaining encryption standards.

Resiliency Through Orbit and Vendor Diversity

Resiliency is engineered, not assumed. Viasat’s approach leverages a multi-layered architecture that reduces dependency on any single vendor, frequency band, or orbital regime. This flexibility builds operational continuity even when assets are contested or degraded due to hostile interference or natural disruptions.

These measures combine to form a resilient communications web capable of withstanding cyberattacks, electronic warfare, and satellite degradation without interrupting mission-critical flow of information.

Global Synchronization with Secure Satellite Communications

Global readiness depends on assured access to secure communications anywhere, anytime. Viasat’s implementation of encryption across both government and commercial segments, including National Security Agency-certified Type 1 encryption where required, ensures alignment with operational security mandates.

Whether directing unmanned systems in remote airspace, coordinating humanitarian logistics across time zones, or enabling precision targeting through real-time ISR feeds, secure satellite communications underpin every dimension of modern warfighting and readiness operations.

With forward-compatible terminals and modems, software-defined architectures, and AI-enhanced network management tools, Viasat brings a modular approach that scales with mission evolution and aligns with the Department of Defense’s vision for agile, interconnected forces.

Accelerating Innovation: The DIU’s Model of Rapid Prototyping and Viasat’s Strategic Fit

Rethinking Acquisition: The DIU’s Commercial-First Strategy

The Defense Innovation Unit (DIU) operates with one directive: move commercial technology into the hands of the military faster than traditional acquisition processes allow. Working under the Office of the Secretary of Defense, the DIU identifies proven commercial capabilities—then adapts, integrates, and scales them for defense. This approach flips the legacy defense contracting model on its head. Instead of building solutions from scratch, the DIU seeks what’s already working and expedites deployment.

Why Rapid Prototyping Drives the DIU’s Success

Speed and agility define the DIU’s operational tempo. Through rapid prototyping cycles, the unit can evaluate technologies in real-world environments long before committing to full-scale deployments. These cycles follow short, sharply defined timelines. Instead of multiyear development deals, pilot efforts often demonstrate functionality in under 12 months. Data is gathered, feedback loops are established, and technical partners are held to rigorous, performance-based benchmarks.

Proofs-of-concept are not abstract exercises—they’re trial-by-fire. A prototype either fills a demonstrated operational need or it doesn't advance. This enables decisive procurement and reduces risk significantly.

How Viasat Aligns with the DIU’s Innovation Ethos

Viasat operates with the same sense of urgency and modular development strategy. In the DIU’s Hybrid Space Architecture (HSA) effort, Viasat introduced its advanced satellite communications capabilities through an iterative, test-driven process that mirrors the DIU’s agile philosophy. Engineers at Viasat delivered mission-ready systems rapidly, integrating and adapting terrestrial and space-based connectivity using a plug-and-play framework.

This wasn’t a singular demonstration—it was a collaborative evolution. Viasat’s team tested inter-satellite communications, optimized feeds across defense networks, and adjusted configurations based on live data from hybrid architecture nodes. Each technical sprint produced actionable insights, all fed back into the design loop for improvement. The pace matched DIU expectations and set new milestones for end-to-end, cross-domain data delivery.

Examples of Prototyping in Action

Consider the outcome: within a compressed schedule, Viasat demonstrated resilient, encrypted tactical communications over a hybrid satellite architecture—all achieved without waiting for years of development. This is the power of DIU’s rapid prototyping fused with Viasat’s technical fluency in modular SATCOM design.

Shaping Competitive Advantage: What Viasat’s Role in Hybrid Space Architecture Means for Defense and Industry

Accelerating National Security Through Next-Gen Communications

The integration of Viasat's capabilities into the Defense Innovation Unit’s Hybrid Space Architecture holds direct implications for U.S. national security. By linking commercial and government space assets into a resilient ecosystem, the Department of Defense strengthens its ability to ensure global command and control across contested environments. This architecture, structured to maintain operational continuity in the face of electronic interference or physical threats, radically reduces the risk posed by anti-satellite weapon systems.

Secure, redundant, and responsive communications allow combatant commanders to receive real-time intelligence, surveillance, and reconnaissance (ISR) data. In effect, this capability shortens decision-making loops and enhances the effectiveness of joint all-domain operations—a priority outlined in recent Pentagon policies.

Reorienting DoD Procurement Toward Agile, Modular Solutions

Viasat's successful demonstration in the HSA prototype directly informs DoD procurement going forward. Programs like this show that modular, scalable solutions driven by commercial innovation can be rapidly integrated and fielded. Instead of relying solely on large-scale, long-cycle programs of record, the Department is now incentivized to pursue more flexible acquisition strategies that tap into the fast-evolving commercial space sector.

This shift has already taken root. The National Security Space Launch (NSSL) Phase 3 procurement framework, for instance, added opportunities for emerging providers to compete for missions previously reserved for established contractors. The HSA project reinforces this trend by showcasing how agile contracting and prototype-based integration deliver high-impact results in reduced timelines.

Opening the Door for New Commercial Entrants

Beyond Viasat, the implications ripple through the entire commercial space enterprise. The DIU’s model—lean, requirement-driven, and experimentation-friendly—lowers traditional barriers to entry. Companies specializing in software-defined radios, optical intersatellite links, AI-enabled data processing, and low-latency networking will find greater access to DoD interest if their solutions can plug into the HSA framework.

The Hybrid Space Architecture doesn’t ask who a company is—only whether their technologies can support mission speed, resilience, and security. This marks a departure from legacy contracting preferences predicated on size or program tenure.

Creating a Sustainable Model for Public-Private Space Development

With HSA, Viasat and DIU are not just building capability—they are modeling a future. One where public and private sectors co-create defense-grade infrastructure that remains commercially viable. When architectures are co-designed with flexibility, both warfighters and enterprise customers gain access to compatible systems. This lowers costs, accelerates innovation cycles, and ensures that national defense systems do not become technologically siloed or obsolete.

Such alignment also redirects the trajectory of U.S. space power. Instead of relying on single-vendor architectures, the Department now orients toward a federated model of interoperable platforms, where resilience comes from diversity—not redundancy. The result is a more competitive, more secure, and more agile national space posture, grounded in industrial capability and protected by operational foresight.

Setting the Trajectory: Viasat and the Future of Defense Communications

The Hybrid Space Architecture (HSA) demonstration, propelled by Viasat’s technology portfolio, marks a tangible shift in how defense organizations approach connectivity in contested and dynamic environments. By integrating commercial innovation with government-secured networks, this demonstration shows what operational flexibility and real-time interoperability can look like at scale.

Viasat’s contributions spanned beyond providing advanced satcom systems. With Layered Network Architectures, resilient IP transport paths, and seamless cross-network integration, the company validated key technical enablers of the Department of Defense's vision for dynamic, multi-orbit connectivity. Demonstration performance highlighted low-latency data throughput, encrypted traffic management across diversified links, and real-world scenario testing across LEO, MEO, and GEO networks.

This mission-aligned approach reflects a broader strategic objective: defense communication systems cannot remain siloed or static. The evolution of space as an operational domain demands integrated architectures — blending commercial responsiveness with federal-grade assurance — to accelerate time-to-capability across services.

The Defense Innovation Unit’s (DIU) 2023 initiative has already influenced baseline expectations. Deputy Director for Space, Col. Steve “Bucky” Butow, stated in a briefing: “This demonstration confirms the U.S. can build resilient, hybridized space communication layers using commercial services — not decades from now, but today.”

From a policy standpoint, the demonstration provides a live model for future acquisition pathways, likely informing updates to U.S. Space Command’s Joint All-Domain Command and Control (JADC2) strategies. It also connects directly to the Space Development Agency’s (SDA) proliferated space architecture vision by showing data continuity across disparate platforms and domains.

With this groundwork laid, the trajectory for future U.S. space communications strategy now includes flexible, commercially-backed architectures. As defense programs shift toward modularity and software-defined capabilities, demonstrations like this one will continue shaping policies and procurement models — not through theory, but through operational proof.