802.11ac: The Fifth Generation of Wi-Fi Technology
In the last few months, there have been a lot of written on the emerging 802.11ac standard. This next generation of Wi-Fi promises to be very exciting since 802.11ac will address some critical pain points faced by users of 802.11n today – more bandwidth and more simultaneous users. To help explain the technology, we put together a new Fundamentals video. You’ll learn about new features such as:
- Operating in the 5GHz band
- Wider channels (80MHz & 160MHz) which means more capacity in the band
- Increased modulation with 256 QAM (Quadrature Amplitude Modulation), providing a significant increase in throughput over 802.11n which has 64 QAM
- Downlink Multi-User MIMO which allows an AP to transmit to multiple clients simultaneously
- Up to 8 Spatial streams which doubles the number of spatial streams used in 802.11n
Read More »
Tags: 802.11ac, 802.11n, byod, mobility, mu-mimo, wlan
We released our latest in the Fundamentals series earlier this month and it is trending quite well. The 802.11ac standard sounds like a step backwards alphabetically…but it will soon be an incredible step forward forward for WiFi once it is ratified by the IEEE. Watch this latest fundamentals to get comfortable with the truth. 802.11n is still your best bet for 2012 and into 2013 as we continue to partner on the standards process but the future is bright indeed!
Read More »
Tags: 5 GHz, 802.11, 802.11ac, 802.11n, beamforming, cleanair, ClientLink, CTS, IEEE, mobility, mu-mimo, rts, TechWiseTV, VHT, wifi, wireless
With all that has recently been written about BYOD, it’s clear that enterprise IT managers need to consider performance requirements on the wireless access point. With more clients accessing the network, the performance demands in terms of coverage and client density will increase. Furthermore, consumer devices such as smartphones and tablets may have difficulty connecting to an AP compared to a laptop. This could be attributed to the fact that most of these devices either do not support 802.11n or they support legacy 802.11g/a. If the devices support 802.11n is sometimes limited to 1×1 MIMO. An access point that has superior performance will be needed to address the growing needs of these new clients.
Read More »
Tags: 802.11n, byod, cleanair, ClientLink, wi-fi, wlan
Earlier this week, we kicked off special customer guest blog series with Andrew vonNagy, author of the blog Revolution Wi-Fi, and active on Twitter @revolutionwifi. Join us today as Andrew explores the next two major retail trends changing the Wi-Fi industry, and catch up with the first part if you missed it.
Trend 2: Empowering Sales Associates
Given the increasingly connected and smart shopper, consumers now have more product information than in-store sales associates in many cases. Yet sales staff are key to providing a great consumer experience in-store. Retailers need to empower sales associates with the depth of product information that consumers have, and to provide additional tools that facilitate existing and new services offered by the retailer.
Historically, only a fraction of retail sales associates have been provided with mobile devices, and those devices have enabled only a limited set of capabilities such as stocking, inventory management and product availability. One reason for this is the high cost of ruggedized mobile devices for use in retail. A typical high-speed scanner PDA can cost well over $1,200 each. In order to provide every sales associate with more information to help consumers, retailers are adopting lower-cost, feature-rich, smart mobile devices that provide more robust capabilities than specialized scanners. Mobile platforms built by Apple, Android, and third-party manufacturers are enabling this shift, along with a retail IT focus on enabling business processes in a more flexible, consistent, and re-usable fashion.
Read More »
Tags: 802.11n, digital signage, iPad, iphone, mobile devices, mobile pos, retail, sales, smartphone, tablet, wi-fi, wifi, wireless, wireless LAN
If you happened to have your Thanksgiving meal last week with a person of Greek heritage, you may have heard them toast “Yia mas”, that literally means “to our health”. And that is exactly what I am thankful for each day, my family’s health.
I am also thankful for the health of our wireless business, which is going great thanks to professionals such as doctors, and nurses that want to want to use their personal devices (smartphones and tablets) at work.
At Cisco we have long been talking about how we enable this proliferation of devices in the workplace and how we make it easier for IT to onboard and troubleshoot these “un-managed” devices. We also provide a robust wireless infrastructure that enables these professionals by providing the best possible mobile experience. But the trend of personal devices in the workplace does pose a valid concern: “As more and more doctors start using their personal iPads at work, will my patient data be secure?”
Curiosity got the better of me, and I decided to look at some data over the long weekend to better understand how healthcare data breaches occur. This is by no means a scientific analysis, I just crunched some data I downloaded from the U.S. Department of Health and Human Services website (hss.gov), so the findings are not conclusive, but rather indicative of what is happening. The data represents HIPAA breaches of 500 or more records per incident over the past 2-year period.
Here is what the data says: Read More »
Tags: 802.11n, compliance, doctors, healthcare, HIPAA, iPad, mobile devices, security, tablet, wireless