802.11ax and Medium Contention

As many of you might already know, a key efficiency enhancement for 802.11ax will be the use of OFDMA by Wi-Fi radios. Orthogonal frequency-division multiple access (OFDMA) is a multi-user version of the OFDM digital-modulation technology and is used in other wireless technologies such as LTE. OFDMA subdivides a channel into smaller frequency allocations, called […]

What’s the Maximum Number of Devices For A Wi-Fi Access Point?

Chris and I discuss how many devices a single access point can provide access to along with design and configuration best practices for enterprise Wi-Fi.

How Do 20 MHz-Only Clients Operate In 802.11ax?

Much of the 802.11ax draft amendment has been written with Internet of Things (IoT) devices in mind. The radio chipsets used for IoT devices generally need to be low-cost and consume very little power. Traditionally, Bluetooth and Zigbee chipsets have been cheaper to manufacture for IoT devices than Wi-Fi radio radios. However, 802.11ax lays the […]

Cone vs Beach Ball – When to Choose an Access Point with an External Antenna 

In the world of wireless access points, one size does not fit all. There are choices to be made in ensuring that you have the best technology fit for the requirements of each situation and one of the key considerations is whether to use an Access Point with an internal or external antenna. So how do […]

What Does Multi-User (MU) Mean?

The term multi-user (MU) simply means that transmissions between an AP and multiple clients can occur at the same time dependent on the supported technology. However, the MU terminology can be very confusing when discussing 802.11ax. MU capabilities exist for both OFDMA and MU-MIMO. 802.11ax defines the use of two multi-user technologies, OFDMA and MU-MIMO. But please […]

802.11ax Frame Aggregation Enhancements

The primary goal of both 802.11n and 802.11ac was to provide high throughput and bigger data rates. However, frame aggregation is one key aspect of 802.11n/ac that did enhance airtime efficiency. Frame aggregation is a method of combining multiple frames into a single frame transmission. Fixed MAC layer overhead and medium contention overhead are reduced, […]

What is a Room Area Network (RAN)?

For many years, Multi-Dwelling Unit (MDU) environments have struggled to effectively manage and secure their network. A fundamental requirement of an MDU (student accommodation, hotels, assisted living facilities etc.) is to provide a secure, isolated network environment for each user and their associated room. The traditional approach has been to provide each room with a […]

Why is Upgrading Wi-Fi Clients/Devices Important?

Chris and I discuss the importance of upgrading end user devices when upgrading your enterprise WLAN network in a recent video.

802.11ax Frequently Asked Questions

This article covers what the 802.11ax standard is and some common questions regarding this new standard and its accompanying features. Answers Compiled by: David Coleman, CWNE #4 Perry Correll, Aerohive’s IEEE and WiFi Alliance representative Gregor Vucajnk, CWNE #96 1. What is 802.11ax? 802.11ax is an IEEE draft amendment that defines modifications to the 802.11physical […]

SD-WAN: Zero-Touch Provisioning & Auto-VPN

Software-Defined Wide Area Networking (SD-WAN) is an innovative new approach to the deployment, management and operation of WANs. In this 5-part series, the key benefits of this exciting new technology are explored. In this final post of the series, we’ll look at how SD-WAN streamlines deployment, while enabling branches to effortlessly connect together via advanced […]