Why Dual-Radio Wireless Makes Sense

You’ve decided to make the move to high-speed wireless. Maybe you’re upgrading to 802.11ac or you’re building a new wireless network from scratch. Either way, you’ve got to decide whether the access points you’re going to purchase will have a single radio or dual radios. If price is an issue, choosing an access point with only one radio will save you a little money. However is that the best decision for your wireless networking needs? Here’s why purchasing dual-radio access points makes financial and practical sense.

Dual-radio access points offer several advantages over those with a single radio.

  1. Extend your investment in 802.11x standards – An access point with two radios allows you to dedicate one radio to 802.11ac clients (laptops, tablets and smartphones) and the other to legacy 802.11b/g/n clients. If you still have a significant investment in devices supporting older wireless standards, a dual radio access point helps you extend that investment until you’re ready to upgrade.
  2. Use bandwidth-intensive services – Similarly, dual-radio access points allow you to dedicate one radio to services such as Voice over IP, streaming video and others that take up large amounts of bandwidth while your clients connect to the other radio without being negatively impacted by the services.
  3. Enhance wireless security – Having multiple radios enables you to enhance the security of your wireless network in two ways. First, you can use one radio for employees and provide them with access to internal resources while everyone else (guests, partners, etc.) connects to the second radio which offers internet-only access. Second, having a second radio allows you to use one for wireless intrusion detection and prevention scanning including scanning for rogue access points while the other is used to provide client access. Having only one radio would require all users to disconnect in order to perform the scan and then reconnect again later.
  4. Achieve better signal quality – The 802.11ac wireless standard operates in the less-crowded 5 GHz frequency band, providing better signal quality. Dedicating one radio to 5 GHz and the other to 2.4 GHz enables you to take advantage of the higher signal quality 802.11ac offers while still supporting legacy 802.11b/g/n clients over 2.4 GHz thanks to backward compatibility.
  5. Realize higher client capacities – Very simply, an access point with two radios allows you to have more WiFi-enabled devices connected at the same without experiencing signal interference.

Secure, high-speed wireless

If you have access points with multiple radios then you’re in position to realize the advantages listed above. If you’re looking at purchasing new access points, consider the benefits dual-radio solutions provide over those with a single radio. SonicWall offers several dual-radio access points as part of its SonicPoint Series. The SonicWall SonicPoint ACe and SonicPoint ACi feature two radios, one dedicated to 802.11ac and the other to 802.11n, while the SonicPoint N2 includes two 802.11n radios. Read more about the SonicPoint Series and how these secure, high-speed access points can help your organization.

SonicWall Staff
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