Understanding 802.11ac: Explanation and Benefits

In January, the new Institute of Electrical and Electronics Engineers (IEEE) standard – 802.11ac – was approved.

Developed between 2011 and 2013, 802.11ac is a wireless networking (Wi-Fi) standard providing high-throughput wireless local area networks (WLANs) on the 5 GHz band. It builds on concepts in its predecessor, 802.11n. Although 802.11n devices are still widely used, experts have speculated that devices with the 802.11ac standard will be common by 2015.

To understand the new standard, one must explore the changes between 802.11n and 802.11ac and the benefits of those changes. Keep reading to learn more.

Changes

802.11ac introduced the following new features:

• Channel bonding – In 802.11n, the maximum was 40 MHz; the new standard allows 80 or up to 160 MHz (117 and 333 percent increases in speed, respectively).
• Multiple-input and multiple-output (MIMO) spatial streams – 802.11n allowed support for four spatial streams; 802.11ac supports up to eight (a 100 percent increase in speed).
• Downlink Multi-user MIMO (MU-MIMO) – 802.11ac allows multiple stations (each with one or more antennae) that can transmit or receive independent data streams simultaneously.
• Modulation – 802.11n used 64 quadrature amplitude modulation (QAM); 802.11ac uses 256 QAM with ¾ and 5/6 optional modes (a 33 percent increase in speed in shorter ranges).
• Beamforming – Standardized sounding and feedback for compatibility between vendors was non-standard in 802.11n, making beamforming difficult between different vendor products.

To sum up the changes, 802.11ac allows increased speeds and improved scalability by expanding on the channel bonding, MIMO, and modulation aspects of 802.11n. What all of this really means is that 802.11ac has the potential to increase throughput and data transfer speeds up to three times that of 802.11n.

So how do these changes translate to business benefits for users of the new standard?

Benefits

Experts note that this increase in speed will prove particularly beneficial in streaming media such as HD videos, transferring files and backing up data, as well as extending the range of Wi-Fi networks.

Theoretically, 802.11ac mobile devices could accomplish more in a shorter amount of time, and businesses would require less Wi-Fi coverage to support them. For those reasons, the new standard could make it easier for enterprises to employ mobile or BYOD programs – or enhance the capabilities and operations of such programs already put in place, especially when paired with robust mobile device management solutions.

As a result of these changes, wireless networks will also be able to experience improvements or increases in:

• The number of clients supported by an access point
• User experiences – low-lag gigabit speeds make file downloads and email syncs quicker
• Available bandwidth for parallel video streams
• Device battery life – a device’s Wi-Fi interface can easily exchange data with its access point, then quickly go back to “sleep”
• MU-MIMO – 802.11 can only transfer a single frame at a time, while MU-MIMO allows an access point to send multiple frames to multiple clients simultaneously (ideal for BYOD programs where devices often only have a single antenna)

The new standard is also beneficial because of its backwards compatibility. It is designed to coexist with other devices in the 802.11 family. This allows flexibility for enterprises considering a mobile infrastructure. They have the choice of implementing the widely-used and available 802.11n access points; implementing 802.11ac access points for improved speed and performance; or implementing a modular 802.11n access point that is field-upgradable to 802.11ac.

It may take some time before you see 802.11ac being used for enterprise mobility purposes – or at least that’s what the history of the 802.11 family would suggest. As mentioned, the new standard is not expected to be common until 2015. In the meantime, that gives businesses a chance to assess the new standard and how it will fit into their current operations – specifically comparing it to 802.11n and considering the added value it may provide, especially when integrated with RFID Technology for improved tracking and connectivity.

For help in this process, don’t hesitate to contact an enterprise mobility expert at Lowry Solutions.

Why a Strong Wireless Foundation Matters for Modern Enterprises

With organizations increasingly embracing connected technologies, wireless infrastructure is no longer just a convenience; it is the lifeblood of day-to-day operations. Real-time information sharing for mobile computers, barcode scanners, RFID readers, IoT sensors, industrial printers, and connected equipment relies on reliable wireless connectivity. Having a high-performance network allows these IT devices to communicate with one another and minimizes delays that might otherwise hinder productivity across warehouses, manufacturing facilities, healthcare environments, and distribution centers.

Supporting Enterprise Mobility

Today’s workforce is increasingly mobile. D The workers are equipped with portable computers and tablets for operational data to request access to inventory records, complete inspection work orders, update problems, as well as communicate with enterprise applications almost anywhere in any facility.

This is where a modern wireless network can provide the level of reliable connectivity necessary for these mobile workflows. Employees can capture and retrieve data as soon as they return to a workstation instead of waiting for information to sync. Real-time communication minimizes manual processes and enhances collaboration and decision-making speed across the organization.

Improving Performance for Connected Devices

Most enterprise environments now run hundreds or even thousands of connected devices at the same time. From barcode scanners and RFID readers to mobile printers, wearable computers, AGVs (automated guided vehicles), cameras, IoT sensors, etc.

A solid wireless infrastructure helps keep those devices online without constant disconnects or network saturation. Trustworthy communication of devices and enterprise systems reduces downtime while enabling seamless functioning during maximum production hours.

The requirement for consistent performance is even more crucial as organizations continue to expand their connected ecosystems, which makes scalable wireless networks an integral need of the hour.

Enabling Real-Time Asset Visibility

The capacity to transfer information immediately throughout the enterprise. Regardless of whether assets are monitored by RFID, barcode scanning, Bluetooth, GPS, or IoT technologies, guaranteed wireless connectivity ensures that location and status information is up-to-the-minute rather than out of date.

As a result, the continuous stream of information allows organizations to:

• Locate critical assets more quickly
• Improve inventory accuracy
• Monitor equipment utilization
• Decrease tool and material search time
• Support faster order fulfillment

Asset tracking technologies take place over a stable wireless network, giving businesses more assurance the data flowing into their operations reflects reality.

Strengthening Security Across the Network

More modern communications have tighter authentication, encryption of communications, and capabilities to centrally manage to help enshrine some sensitive business data.

Organizations can also segregate their network traffic, which will keep operational devices away from user access or other systems, which means if a security risk comes from the guest user, it will have little to no impact on an organization, and improve the End-User experience as well.

Organizations have limited control over connected devices, software upgrades, security policies, and compliance requirements; that is where the mobile device management solutions come into play.

Preparing for Future Technologies

Technology does not wait, and enterprise networks need to be accommodating. Instead, a scalable wireless environment gives organizations the ability to expand around new technologies like increased IoT deployments, automation systems, advanced analytics, and intelligent asset tracking solutions.

Businesses that plan for growth today can avoid expensive redesign efforts down the line and seamlessly integrate new devices as business needs evolve.

Supporting Hybrid Enterprise Environments

Most organizations run a hybrid between legacy systems and the more current technology. Interoperable wireless infrastructure simplifies the introduction of new mobile devices, access points, and tracking solutions without affecting existing operations.

That flexibility provides the ability to modernize at a pace that supports the organization, while also protecting previous investments in enterprise technology. Implementing upgrades in a staged manner reduces operational risk when changing technology.

Choosing the Right Wireless Strategy

Choosing the right wireless infrastructure requires more than just looking at speed and industrial wireless networks. Now organizations should take into consideration network coverage and device density, security needs, scalability, as well as compatibility with existing surface-based enterprise systems.

Engaging with seasoned technology partners can help businesses construct wireless ecosystems that are not only aligned to operational goals, but also appropriate for sustainable future expansions. Not only the convenience that a good network provides, but also efficient mobile computing, RFID, barcode systems, asset tracking platforms, and other mission-critical applications.

Looking Ahead

Wireless is increasingly a key component for digital transformation investments. Organizations are bringing in more connected devices and real-time tracking solutions, making the quality of their wireless infrastructure a factor directly affecting operational efficiency, visibility and user experience.

By investing in an updated and scalable wireless foundation, organizations can better prepare for enterprise mobility, empower asset tracking, maintain collaboration, and realize the value of their connected devices.