Showing posts with label NFC. Show all posts
Showing posts with label NFC. Show all posts

Wednesday, February 22, 2012

Graphic: Comparing Wireless Technology Range and Data Rates

This graphic helps visualize the different use-cases for various wireless technologies by comparing range and data rates.

A few notes:

  • LTE could be included in the same area as WiMax, and could probably be re-named "4G".
  • Wi-Fi will soon approach Gigabit speeds with 802.11ac and 802.11ad and would shift upward in the graphic.


Cheers,
Andrew

Thursday, January 12, 2012

Wi-Fi Article Round-Up: CES Edition

A recap of interesting Wi-Fi and IT industry articles from around the interwebs. For those living in isolation, CES is this week, so much of the news will relate to the show.

Note - I will not be covering CES news surrounding tablets or smartphones. Wi-Fi within those devices are well understood and not really new.

Wi-Fi Articles:


Wireless display technologies will fight to enter the market in 2012 and compete with Apple AirPlay. I don't think they'll gain much traction in 2012, but Marvell and the Wi-Fi Alliance have a better long-term shot than Intel WiDi, as I wrote about earlier this week.
Marvell to Showcase Wi-Fi Display Technology Implemented Across Avastar Family of Wireless Products: "The Wi-Fi Display specification is the basis for an exciting new Wi-Fi Alliance certification program, scheduled for launch in mid-2012. Devices certified under this program can provide a rich audio/video experience between Wi-Fi devices anywhere, at any time, without cables or a connection to an existing Wi-Fi network--all with the multi-vendor interoperability expected from Wi-Fi CERTIFIED."
This standards-based solution has already been adopted by Qualcomm Atheros as well (press release), proving just how important the Wi-Fi Alliance and interoperable standards are in the Wi-Fi industry (hint - we live by interoperability!)

New Wi-Fi Alliance growth predictions:
Wi-Fi Alliance's Wireless Predictions and Projects for 2012: "Recent research data shows that shipment of wi-fi devices is expected to double by 2015. Growth in home wireless networking devices—including TVs, media players and gaming consoles is anticipated to reach 35 percent from 2011 to 2016. Other predictions:
- Wi-Fi is expected to grow 109 percent between 2011-2016 in automotive applications such as infotainment systems, navigation, and traffic monitoring.
- Wi-Fi is expected to grow 39 percent between 2011-2016 in health, fitness, and medical applications.
- Wi-Fi is expected to grow 25 percent between 2011-2016 in smart meters and automation products."
White space Wi-Fi could get faster if Microsoft has anything to say. They have proposed Wi-Fi over Narrow Channels (Wi-Fi NC), which essentially bonds non-contiguous narrowband frequencies into a single Wi-Fi channel that increases available spectrum and therefore bandwidth for white space Wi-Fi.
WiFi-NC : WiFi Over Narrow Channels - Microsoft Research: "We propose WiFi-NC, a novel PHY-MAC design that allows radios to use WiFi over multiple narrow channels simultaneously. To enable WiFi-NC, we have developed the compound radio, a single wideband radio that exposes the abstraction of multiple narrow channel radios, each with independent transmission, reception and carrier sensing capabilities."


Hotspot 2.0 will a recurring theme throughout 2012 (and 2013 for that matter). The ability to provide Wi-Fi hotspot security, ease of use, service and provider transparency, and allow carrier data offload, while doing so with a viable business model for telecom carriers, independent hotspot operators, as well as authentication providers (which, BTW, is not limited to carriers), will be a major milestone for the Wi-Fi industry. Marcus breaks most of this down in his blog post on the subject!
Hotspot 2.0 and the Next Generation Hotspot: "Hotspot 2.0 and the Next Generation Hotspot initiatives are possibly the most exciting areas of wireless progress occurring in 2012. For starters, these developments have a worldwide scope of influence. The technologies that come to market as a result of these programs will directly affect a large portion of the world’s population. If brought to market with extensibility, they could revolutionize the hotspot ease-of-use and security landscapes. These programs deserve the spotlight."
While you're at it, be sure to sign up to learn about Hotspot 2.0 at the upcoming Wi-Fi Mobility Symposium and Wireless Field Day 2 events being held Jan. 25-27th.
Want details of the recent WPS vulnerability affecting Wi-Fi routers? Look no further than the No Strings Attached Show podcast - Episode 02 - Wi-Fi Protected Setup, Battered or Broken?


How about making Eye-Fi, the SD cards that connects to Wi-Fi for automatic picture upload, into an industry standard? Enter the SD Association and the Wireless LAN SD standard!
Wireless LAN SD standard aims to give every SD card that Eye-Fi flair: "The Wireless LAN SD standard announced today is the SD Association's first wireless SD memory card standard combining storage and wireless capabilities. Consumers will be able to transfer pictures, videos and other content wirelessly from most existing digital cameras and digital video cameras to web-based cloud services and between SD devices over home networks."
We've also seen manufacturers embedding Wi-Fi capabilities directly into cameras (Samsung, Kodak), and camcorders too (JVC, Gobandit Live). Watch out Eye-Fi, time to shift into new territory to keep the sales flowing! Also, check out this Toshiba FlashAir wireless LAN SD hands-on video!
Toshiba FlashAir Wireless LAN SD Card
Or how about embedding an Android phone into a true point-and-shoot camera, with this interesting twist on the merger of the two capabilities in the Polaroid SC1630.

Polaroid's Frankenstein Camera / Android Phone, the SC1630
Okay, I will throw one smartphone news item at you... how about more and more phones supporting dual-band Wi-Fi. There have been others prior, I'd just like to highlight the growing trend. 5GHz phones - "Make it so!"

Notice support for 5GHz standards (11a/n) with a 1x1:1 configuration
capable of up to 150Mbps if it support 40Mhz wide channels (not verified)

Indoor location services - Google is trumpeting their indoor location and navigation technology in Google Maps 6.0. I first heard of this being deployed in my neck of the woods, at the Mall of America, and now it's at CES.
Google Maps indoor navigation: yeah, it works at CES: "Google Maps 6.0 brought a promise of indoor navigation back in November of last year, but outside of a few dozen airports, transit hubs and retail outlets, we had no idea where it was or wasn't implemented. Turns out, Google (smartly) mapped out lots of Las Vegas before the annual Consumer Electronics Show"
I'm concerned with the hype surrounding this service as over-zealous media analysts predict this will revolutionize indoor navigation and appear at most retail stores. Sure, one-off venues likes malls make sense, but an inordinate amount of time goes into mapping the venue. Don't expect large retail chains to be spending the labor and money to map each and every one of their thousands of stores anytime soon! Indoor location just ain't THAT easy :)
Home automation solutions continue to keep plugging away, hoping to find a place in consumer's hearts. Right now most of them are standalone solutions, lacking whole-home automation at an affordable price for the masses.
Belkin announces WeMo home automation system; controls electrical outlets with your smartphone, motion: "WeMo works with a home's existing electrical system and requires only a Wi-Fi® network and free smartphone app to set up and control. Simply plug the WeMo Home Control Switch into any electrical outlet and then plug in any device, such as a lamp, into the WeMo Home Control Switch. Through the free smartphone app, the item then can be turned on or off remotely or scheduled to turn on and off at set times." 
Also check out the Motorola Connected Home Gateway (tour and video).
Belkin WeMo Electrical Outlets
Wi-Fi video surveillance and baby cameras are also quite popular (see Dropcam, Samsung). Smart appliances are also back at CES this year, same as last year (see LG, Samsung). While we're at it, let's make it Siri voice-activated too! Oh, and don't forget this weird Withings Wi-Fi connected baby scale!

Samsung SmartHome Wi-Fi Washer, Dryer, and Mobile Application 


IT Industry Articles:


NFC built into MicroSD cards could bring faster consumer adoption, for uses including information retrieval (such as Google Places or Sony SmartTags), information exchange, and contactless payment (mobile wallets).
Moneto NFC microSD to bring contactless features to any Android phone: "DeviceFidelity and Spring Card Systems have teamed up on a NFC-capable microSD card that will hopefully forgo the need of buying specific mobile handsets for the privilege of contactless payments. "
Also check out this Cirque Glidepoint NFC-enabled laptop trackpad. I'm not sure how this would be of practical use, but it's interesting, that's for sure.
NFC MicroSD Card
Home networking could be made easier with higher-speed powerline networks. I think consumers will still prefer Wi-Fi, but powerline could be an attractive option for older homes with thick construction material that hinders RF propagation. Given powerline's checkered performance history and problems with power strips, filters, and surge protectors, I think it still faces challenges with consumer adoption.
HomePlug Alliance AV2 specification promises gigabit class networking over electrical wires: "With MIMO functionality (multiple-input and multiple-output) at its core, the new specification features gigabit class speeds and comes from a decade of field tests. What's more, the new standard promises to bring greater in-home coverage beyond WiFi capabilities while maintaining compatibility with existing HomePlug AV / IEEE 1901 products."

Comic for the Week:

Don't Kitchen Sink Me, Dude!



Cheers (and happy reading)!
Andrew

Friday, April 29, 2011

Wi-Fi Article Round-Up: 2011/04/29

Here are a collection of Wi-Fi related articles that I have found useful, interesting, or enlightening. As always, for a complete list of articles check out my shared article feed from Google Reader.


My Stuff:
Industry Wi-Fi Articles:
Techie Wi-Fi Articles:
Other IT Related Articles:
Comic for the Week:
It's not "off-shoring", it's "best-shoring"...

Dilbert.com



Cheers (and happy reading),
Andrew

Friday, December 10, 2010

Introduction to NFC on the Google Nexus S

Following up on my previous post about how NFC Smartphones Could Mean Greater Customer Influence, here is an introduction to the capabilities in the first iteration of NFC available in a U.S. smartphone, the Nexus S by Google and Samsung.

As mentioned in the video, NFC is currently limited to reading data from tags. The phone cannot send data to another NFC device at this time due to security concerns. This prevents contactless payment applications at this time, but I would expect to see enhanced NFC capabilities in the not-to-distant future once developers have worked out security considerations for this type of functionality.



It will be interesting to see which retail establishments are early adopters and lead the pack in innovative uses for this functionality to interact with their customers. I would expect to see a period of minimal NFC application availability initially as retailers evaluate technology use-cases and test interactive applications in limited markets. However, look for the market to pick up dramatically in time for the Q4 holiday shopping season next year as retailers push for competitive advantages in mobile commerce to drive increased store visits by consumers.

All signs point to mobile as the big strategic initiative for retailers in 2011!

Cheers,
Andrew

Tuesday, December 7, 2010

NFC Smartphones Could Mean Greater Customer Influence

Yesterday, Google officially announced the Nexus S smartphone which was developed by Google and Samsung to ensure tight integration of the operating system and hardware. Apart from being the flagship device for Android 2.3 "Gingerbread", supporting a new SDK/NDK, and running on new hardware specs, what interests me the most about this announcement is the integration of Near-Field Communications technology.

Near Field Communication (NFC) technology is a combination of hardware and software that uses a very high frequency to transmit data between two devices when in close proximity, typically around 10 cm or less in distance. The technology is closely related to proximity cards, smartcards, and RFID equipment and serves as an extension which integrates both a smartcard interface and reader into a single device.

The first release of Android 2.3 only supports tag reading applications, not two-way communication. This allows initial applications to use NFC for tag reading and information display to the user, but prevents more direct information exchange between devices thus limiting applications such as contactless payment at point-of-sale. Also, since NFC is integrated into the Android operating system, no application launching is required to activate NFC when in proximity to a tag. This should provide a simple and satisfactory user experience.

Working in retail IT, and specifically on wireless communication technologies, the adoption of NFC has the potential to significantly disrupt the model of B2C (business to consumer) interaction. There is currently a race by retailers to adopt developing mobile technologies that allow greater interaction with guests where retailers have the most influence over purchasing habits, at the point-of-sale. Studies show that providing customers with more information about products, special offers, and targeted messages at the point-of-sale and through mobile platforms is still the most effective method for retailers to influence the customer, and outweighs fears about competitive shopping by consumers on mobile platforms.

Many retailers have been researching opportunities for customer interaction through mobile applications, cellular networks, and in-store Wi-Fi networks. Typically, cellular networks are not robust enough to provide a reliable interaction model with consumers, especially at the point-of-sale due to signal degradation inside modern facilities. Therefore, many have begun to offer free in-store Wi-Fi using a mix of existing and new network infrastructure, or managed services, to encourage consumers to connect and interact while within their stores. The draw for consumers is the ability to remain connected in their increasingly digital lifestyles. For the retailer, enhanced customer engagement through the use of mobile applications offers the possibility to influence the customer at the point of sale, drive higher sales, increase net profit by selling higher gross margin product, and increase brand loyalty.

Retail establishments have also been aggressively researching real-time location services (RTLS) to provide  highly targeted messages and promotions to consumers while in store. However, the lack of a mature business model for this level of interaction coupled with RTLS accuracy requirements are hindering progress at this point. Targeting consumer smartphone platforms for integration is typically the focus, which allows interaction with the broadest consumer segment, especially when in-store (how often do you take your phone while shopping versus a laptop or tablet?). Since most smartphone models only have Wi-Fi and cellular communications, a Wi-Fi RTLS solution is required. However, achieving the desired accuracy, usually within 5 feet, is problematic. Current Wi-Fi RTLS solutions use RSSI-based tri-lateration, which currently cannot provide the desirable level of location accuracy, ranging from 10-50 feet depending on network design and environmental constraints. Add in the complexity of initial and recurring calibration required to keep the system performing well, and the expense can quickly exceed the benefits.

The addition of Wi-Fi or RFID tags can increase location accuracy, but is not ideal for consumer use within retail establishments since the consumer would be required to pick up an additional tagged device upon entering the store, carry it with them throughout their visit, and return the tag upon exit. On the surface, that may not seem like an issue. However, a significant implication with this approach is the decoupling of user identity from the location data. Data correlation between the user and their shopping/purchase habits is of great value to retailers for business analytics including targeted messaging, providing a personalized shopping experience, understanding consumer demographics, and much more. Retailers are still developing these consumer interaction models and should be transparent in their collection and use of such information to ease consumer privacy concerns by providing detailed information to consumers, establishing strong data security policies, and adopting a consumer "opt-in" model for the service offering.

Near Field Communications (NFC) holds the potential to offer the highly localized and personalized consumer interaction model which retailers are currently seeking, while eliminating the need for deployment and maintenance of complex Wi-Fi RTLS systems. Although NFC is not a complete functional replacement for a dedicated RTLS system, it can provide most of the consumer influence benefits while sacrificing a subset of back-end business analytics such as consumer travel paths and dwell times through the store. The combination of NFC technology for localized consumer interaction, and Wi-Fi RTLS as a supplement for business analytics seems to offer a relatively good compromise.

The race by retail establishments to interact with consumers through mobile technologies should spur development of applications that utilize integrated NFC smartphone capabilities. Engadget aptly states "[NFC] has the potential to become a very interesting new method of interaction between our devices and our surroundings." Indeed!

I will be following the development, smartphone adoption, and application development surrounding NFC technologies and related wireless technologies very closely.

Cheers,
Andrew