Beyond Wi-Fi: The Technologies Solving the Hospital Connectivity Crisis
Part 2 of a 2-Part Series on Hospital Connectivity
In Part 1 of this series, we explored why hospitals across the United States struggle with poor cellular coverage inside their buildings and how those connectivity gaps affect patient care and hospital operations.
But understanding the problem is only the first step.
Hospitals are now investing in modern hospital wireless infrastructure solutions to deliver reliable cellular connectivity across entire healthcare campuses. Technologies such as distributed antenna systems (DAS) and private cellular networks using CBRS spectrum are helping healthcare organizations improve indoor coverage while supporting mobile devices, connected medical equipment, and digital health services.
Justin Green, National Sales Director for Healthcare, has worked with hospitals ranging from small emergency facilities to some of the largest healthcare systems in the country. In this article, he explains the technologies hospitals are deploying to solve their connectivity challenges.
How Hospitals Improve Cellular Coverage
Hospitals improve cellular coverage by deploying specialized in-building wireless infrastructure such as distributed antenna systems (DAS) and private cellular networks. These technologies extend carrier signals throughout large healthcare facilities, ensuring reliable connectivity for clinical staff, patients, and connected medical devices.
Key Takeaways
Hospitals are adopting distributed antenna systems (DAS) to extend cellular coverage across large healthcare facilities and multi-building campuses.
Small cells are typically used in smaller medical buildings or localized coverage scenarios, rather than campus-wide deployments.
Private cellular networks using CBRS spectrum allow healthcare organizations to support connected medical devices and maintain greater control over wireless infrastructure.
Reliable cellular connectivity is essential for mobile clinical workflows, IoT medical devices, and telehealth services.
Why Hospitals Need More Than Wi-Fi
Many hospitals initially attempted to solve connectivity problems by expanding Wi-Fi coverage. While Wi-Fi networks remain an essential part of hospital infrastructure, they were not designed to support the mobility demands of modern healthcare environments.
Doctors, nurses, and clinical staff rely on mobile devices that move constantly between departments, patient rooms, and treatment areas. Maintaining reliable connectivity across these environments can be difficult for traditional Wi-Fi networks alone.
Justin Green explains that many hospitals discover these limitations when they attempt to scale mobile clinical workflows.
“The general consensus is that voice stinks — not just on your cell phone, but there are solutions providers that also provide Wi-Fi-based phones, and those don't work well either,” Green says.
Because of these limitations, hospitals increasingly rely on cellular infrastructure alongside Wi-Fi networks.
Distributed Antenna Systems (DAS)
One of the most common solutions for improving cellular coverage in hospitals is a distributed antenna system (DAS).
A DAS distributes cellular signals throughout a building using a network of antennas installed across the facility. These antennas ensure that mobile devices receive consistent signal strength regardless of where clinicians, patients, or visitors are located.
DAS systems are particularly effective in large hospitals where coverage must extend to:
patient rooms
operating suites
emergency departments
underground areas
administrative offices
By extending carrier signals indoors, DAS infrastructure allows hospitals to provide reliable cellular connectivity across the entire campus.
In large hospitals and medical campuses, DAS is often preferred because it provides seamless coverage across entire facilities while supporting multiple carriers on a single RF infrastructure.
When Hospitals Choose Small Cells Instead of DAS
While distributed antenna systems are commonly used to provide building-wide cellular coverage in large hospitals, some healthcare facilities deploy small cell networks in specific situations.
Small cells function as individual miniature cellular base stations. Each node provides coverage for a relatively small area and connects back to the network through IP backhaul.
Because each small cell serves a limited coverage zone, large hospital campuses would typically require many nodes to achieve the same blanket coverage that a DAS system provides. Managing large numbers of individual radios can increase operational complexity as networks scale.
For that reason, small cells are often better suited for:
smaller medical office buildings
outpatient clinics or ambulatory centers
individual hospital towers with modern IP infrastructure
localized coverage gaps rather than campus-wide coverage
In these environments, small cells can provide a modular and relatively fast way to extend cellular coverage without deploying a full distributed antenna system.
In large hospitals and multi-building medical campuses, however, healthcare organizations often prefer DAS because it distributes signal through a centralized RF architecture that behaves like a single large indoor cell, allowing clinicians and patients to move throughout the facility without handoffs between dozens of small radios.
The Engineering Challenge of Network Dominance
Designing cellular systems for hospitals involves a unique technical challenge known as network dominance.
Mobile devices must recognize the hospital’s internal cellular network as the strongest available signal. Otherwise, devices may attempt to connect to external cell towers through windows or walls, leading to dropped calls or inconsistent connectivity.
Green explains the design goal clearly.
“Your phone needs to understand that the strongest signal is coming from the antenna in the ceiling — not from the tower outside the building.”
Achieving this balance requires detailed signal modeling and specialized engineering expertise.
Improving Connectivity in Healthcare Environments
Hospitals increasingly depend on reliable wireless infrastructure to support clinical mobility, connected medical devices, and modern healthcare applications.
Learn more about healthcare connectivity solutions.
Private Cellular Networks Using CBRS
Hospitals are also exploring private cellular networks using CBRS spectrum.
Unlike traditional carrier networks, private cellular systems allow healthcare organizations to control their own wireless infrastructure. This gives hospitals greater visibility into network performance and device connectivity.
Private cellular networks are increasingly used to support:
mobile clinical devices
connected medical equipment
secure data transmission
IoT healthcare applications
As more medical devices become connected, hospitals are recognizing the benefits of owning and managing their own wireless networks.
The Explosion of Healthcare IoT
Connected medical devices are rapidly expanding across healthcare environments.
For example, barcode scanners used by nurses to verify medications are now being manufactured with built-in CBRS connectivity.
Justin Green describes a common workflow.
“The nurse comes in, scans your wristband, and then scans your prescription to update the log.”
Reliable wireless infrastructure ensures these devices work consistently across hospital environments.
Why Hospitals Need Long-Term Connectivity Partners
Hospital IT teams already manage enormous operational responsibilities.
Green often sees overwhelmed IT departments dealing with urgent daily issues.
“By and large, they run around with their hair on fire,” he says.
Because of this, hospitals often seek partners who can manage the entire lifecycle of wireless infrastructure projects, including:
system design
deployment
monitoring
long-term maintenance
When connectivity systems are proactively monitored and maintained, hospitals can focus on their primary mission: delivering patient care.
What Comes Next for Healthcare Connectivity
Healthcare’s digital transformation is accelerating.
Electronic health records, telehealth services, connected medical devices, and mobile clinical tools all require reliable wireless connectivity throughout hospital campuses.
Justin Green believes healthcare leaders increasingly understand that connectivity is no longer optional.
“Connectivity isn’t just an IT nice-to-have — it’s a fundamental requirement for modern healthcare delivery.”
As healthcare organizations deploy more connected medical devices, mobile clinical applications, and digital health services, the importance of resilient hospital wireless infrastructure will only continue to grow. Technologies such as distributed antenna systems (DAS) and private cellular networks are helping hospitals build the reliable connectivity foundation required for modern healthcare delivery.
Frequently Asked Questions
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Hospitals often have weak cellular signal because building materials such as concrete, steel, and energy-efficient glass block radio signals from reaching interior areas of the facility.
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A distributed antenna system (DAS) distributes cellular signals throughout a hospital building using a network of antennas that extend carrier coverage indoors.
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Private cellular networks allow hospitals to control wireless infrastructure, improve reliability, and support connected medical devices.
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Wi-Fi supports many healthcare applications but often struggles with mobility and reliability in complex hospital environments. Cellular infrastructure complements Wi-Fi to provide consistent connectivity.
About the Expert
Justin Green is National Sales Director for Healthcare at Communication Technology Services (CTS). He works with healthcare organizations across the United States to design and deploy in-building wireless infrastructure that supports modern clinical workflows and connected medical technologies.
Hospital Connectivity Series
Part 1: Why Cellular Coverage in Hospitals Is Failing
Part 2: How Hospitals Are Solving Cellular Coverage Problems (You are here)
Improving Connectivity in Healthcare Environments
Reliable wireless infrastructure is essential for modern healthcare delivery. From improving communication between care teams to supporting connected medical devices, hospitals depend on strong cellular coverage throughout their facilities.
Learn how in-building wireless solutions for healthcare can improve connectivity, mobility, and patient care outcomes.
