--- title: "Autonomous Warehousing" path: "/solutions/warehousing-cold-storage/autonomous-warehousing" type: "term:solution_scenarios" updated: 2026-01-29 description: "Autonomous Mobile Robots (AMRs) are transforming warehouse operations. They move inventory without human intervention, operate around the clock, and scale with demand. But they depend entirely on wireless connectivity. When an AMR loses signal, it stops. It can't receive new…" --- # Autonomous Warehousing Autonomous Mobile Robots (AMRs) are transforming warehouse operations. They move inventory without human intervention, operate around the clock, and scale with demand. But they depend entirely on wireless connectivity. When an AMR loses signal, it stops. It can't receive new tasks, can't report its location, can't coordinate with other robots. A fleet of stranded AMRs isn't automation - it's an expensive traffic jam. WiFi has often been the technology attempted first for warehouse automation. Familiar, the equipment is available, and it works well enough in office and even many industrial environments. But as AMR fleets scale and operational demands increase, WiFi's limitations quickly become apparent. ## Why WiFi Struggles with AMRs ### Roaming and Handover AMRs move constantly. A robot picking orders might traverse the entire facility multiple times per shift, passing through the coverage zones of dozens of access points. Each time it moves from one AP's coverage to another, the device must hand over its connection. WiFi handover is notoriously unreliable for moving devices. The protocol was designed for laptops and phones that mostly stay in one place. When a device does move, brief pauses during handover are barely noticeable for web browsing or email. For an AMR receiving real-time navigation commands, even a momentary dropout can cause the robot to pause, lose its task, or require manual intervention. Multiply this by hundreds of handovers per hour across a fleet of robots, and the cumulative impact on operational efficiency becomes significant. ### Interference and Channel Congestion Warehouses aren't just running AMRs. Handheld scanners, tablets, voice picking headsets, IoT sensors, personal devices, (even the lunch room microwave!) all compete for the same WiFi spectrum. During peak periods, this congestion affects everyone. Dense access point deployments create overlapping coverage zones. Without careful channel planning - which often degrades as the facility changes - access points interfere with each other. Signal quality becomes unpredictable. A robot that worked fine in testing fails intermittently in production, and the cause is difficult to diagnose. ### Frequency Limitations WiFi frequencies don't propagate well in metal-dense environments. At 5 GHz, signals attenuate quickly when obstructed by racking, inventory, and vehicles. Coverage that works in an empty aisle may fail when fully stocked. Dead zones appear and disappear as inventory moves through the facility. Operators compensate by adding more access points, but this amplifies the interference and handover problems. There's a ceiling to how much coverage density can improve reliability. Fortunately, there's a better way. ## Distributed Private 5G for Autonomous Operations Cellular technology was designed for mobility from the ground up. Phones moving at highway speeds hand over between towers seamlessly, detectability at long range and deep inside buildings. The same engineering applies to AMRs moving through a warehouse. Axidra builds Distributed Private 5G (DPNR) - the use of strategically placed Coverage Nodes to propagate a single 5G channel evenly throughout the entire facility. Distributed Private 5G provides several advantages for autonomous operations: - Seamless handover - Cellular handover protocols maintain connections during movement. Robots don't pause or disconnect when transitioning between coverage zones. - Licensed spectrum - Private 5G operates in licensed spectrum bands, guaranteed clean, isolated from the interference of WiFi devices, Bluetooth, and traffic from public mobile networks. - One channel (no handover!) - No need to stress about channel coordination, Distributed Private 5G can provide channel widths up to 100 MHz output evenly across the building. - High power, high sensitivity - Using licensed spectrum means you're not constrained by the tight power limits of "public park" spectrum. 5G chipsets use advanced processing to detect signal to far lower levels than WiFi chips. - Dedicated capacity - The network serves operational systems only. Staff phones and guest devices don't compete with robot communications for bandwidth. ### Combining Private with Public Many facilities benefit from extending public mobile networks alongside Private 5G. Private 5G handles operational systems - AMRs, automated equipment, and mission-critical devices that need dedicated, interference-free connectivity. Public mobile coverage serves everyone else. - Staff connectivity - Workers' personal phones stay connected throughout the facility. Supervisors can make calls from anywhere. No need to carry separate devices or rely on WiFi calling. - Contractor and visitor access - Delivery drivers, maintenance technicians, and visitors have mobile coverage without accessing operational networks. - Low-band reach - Public carriers operate 700 MHz spectrum that propagates well through racking and inventory. This complements Private 5G's mid-band coverage, filling in areas like deep storage aisles where any mid-band signal requires more infrastructure. Axidra designs systems that combine both where it makes sense. The same Coverage Nodes can support Private 5G and public mobile extension, sharing infrastructure rather than duplicating it. ## Axidra's Approach Designing coverage for autonomous operations requires understanding how the facility actually works. Racking layouts, aisle widths, inventory types, and robot traffic patterns all affect where coverage is needed and how signals propagate. Axidra builds a 3D model of your facility and uses raytracing simulation to optimise Coverage Node placement. The simulation maximises both coverage area and signal quality (SINR), ensuring robots have reliable connections throughout their operating zones. The model becomes a live digital twin in Axidra Cloud. As your operation evolves, you can test changes before implementing them. Considering a racking reconfiguration? Drag the new layout in the model and see how coverage changes. Planning to expand the AMR fleet into a new zone? Verify coverage before the robots arrive. This proactive approach avoids the reactive troubleshooting that plagues many warehouse wireless deployments. Problems are identified in simulation, not in production. ## BYON for Existing Facilities Not every facility needs new infrastructure. Some warehouses have WiFi networks that work adequately for current operations. Others have already invested in Private 5G or LTE. Axidra's Bring Your Own Network (BYON) service brings your existing network into Axidra Cloud. We model your current coverage, overlay performance data, and provide the same visibility and scenario planning tools. When issues arise, you can diagnose causes without guesswork. When changes are planned, you can model impacts before implementation. The platform works with the network you have, not just the networks we build. ## Related - [Warehousing & Cold Storage](https://axidra.com.au/solutions/warehousing-cold-storage.md): Warehouses and cold storage facilities present some of the harshest RF environments in the built world. High-density pallet racking, insulated wall panelling, and Antarctic temperatures create zones where off-the-shelf systems fail – when your operations can’t. Axidra designs…