802.11ay: 20Gig Wireless!

March 31, 2016 at 8:00 AM

 

Hold on to your hats – or in this case, your wireless devices – and prepare to be blown away by 802.11ay. The next generation wireless standard promises almost three times the speed of 802.11ad with transmission rates of 20 Gbps, up from 802.11ad’s current rate of  7 Gbps. It will also extend transmission distance from the 10 meter limit of 802.11ad to as far as 300-500 meters!

 

Scheduled for release next year, 802.11ay will increase bandwidth and improve the reliability and robustness of the 60GHz millimeter wave spectrum. It will be designed to improve throughput, range and use-cases.

 

The focus of 802.11ay will be on new applications for mobile offloading, wireless docking and display as well as indoor and outdoor wireless backhaul. It is also expected to include mechanisms for MU-MIMO and channel bonding technologies.

 

The main targets for 802.11ay are DisplayPort, HDMI and USB connectivity, fast synch as well as short-range, high-bandwidth connectivity to TV and monitor displays.  

 

As an amendment for improving the performance of the 802.11ad standard, 802.11ay will support the same broad applications and be backward compatible with the 802.11ad standard.

 

802.11ay is primed to pack a punch with super-charged 20 Gig speeds and greater transmission distance. This revolutionary IEEE standard will surely break records and set the standard for future wireless technology.

 

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Next Generation Positioning: A look at what’s around the corner

March 10, 2016 at 8:00 AM

 

Most of us use GPS apps and positioning technology every day to get directions, find nearby restaurants and for a variety of other applications. Positioning technology has fully infiltrated our lives and usage is expected to continue to grow by up to 50% over the next two years.

 

Pinpointing the pulse of the market, the IEEE is working to develop the next generation positioning standard, 802.11az. 802.11az will enhance and enable indoor positioning systems by focusing on several key concepts. 

 

802.11az:

  • ·       Next-generation amendment to 802.11
  • ·       Designed for new positioning applications to run on wireless local area networks (WLAN)
  • ·       Focused on better positioning and location finding to enhance GPS for indoor locations
  • ·       Enables wireless connectivity for fixed, portable and moving stations within a local area
  • ·       Allows access to one or more frequency bands for local area communication

 

 Improved Accuracy:

  • ·       Increasing accuracy range from <1m to <0.1m
  • ·       As technology usage increases, so does the demand for performance
  • ·       Micro-locations offer a new category of usage models

  

Direction Finding:

· Guiding people through stores to find a specific product on a high  shelf

· Directing museum visitors through the exhibitions

· Providing product location information to customers as they enter a store

 

 

Improved Scalability and Efficiency:

  • ·       Bringing location technology into crowded venues to ease traffic flow
  • ·       Guiding people to their seats in stadiums
  • ·       Showing people to their gate in airports
  • ·       Directing passengers to their platform in metro stations and train stations

 

With such a great need for accurate indoor positioning, the IEEE is working to fulfill market demand by developing a robust, accurate and scalable wireless positioning standard. In the coming years, 802.11az will greatly enhance our personal and professional lives.

 

Tutorial on Wireless Networking

June 12, 2013 at 10:00 AM

 

Wireless network antenna and devices

Entire cities and even countries are looking into ways to expand communications access for their residents as the Internet has shifted from a luxury to an imperative. The most promising solution: wireless networking.

 

Why? Wireless networking allows a non-physical (well, at least non-cabled) connection to a wireless LAN (WLAN) and onto the World Wide Web for users. So what are you waiting for? Cut the cord!

 

Be mindful of this though- issues such as network and band congestion, security, signal range and propagation, power demands, and more make WLANs tricky to implement for all but the most informed network engineers and IT professionals. Yet there's no stopping this technology in its rapid advance, with solutions such as distributed antenna systems (DAS) and MESH networks beginning to show promise. For you to get started, here's a basic wireless tutorial on terminology and concepts.

 


Wireless Standards

 

Radio frequency signals can take a lot of different forms, so in order for devices made by different manufacturers to communicate, the IEEE has provided several standards including the mainstay for wireless Ethernet: 802.11.

 

The 802.11 standard specifies the band and IP protocol used to transmit data, and provides guidelines to maximize the speed of transmission. 802.11a, for instance, uses the 5Ghz band and can typically transmit at speeds up to 54 Mbps in shorter ranges. 802.11b, 802.11g, 802.11n, and the new 802.11ac all use various methods to increase the speed and range. The latest IEEE wireless standard, 802.11ac boasts transmission speeds of up to 1 Gbps!

 

Each standard typically requires wireless routers, access points, and other transmission equipment to match its designation, though there are many that can operate in multiple standards (such as routers that are 802.11b/g/n compliant).

 


Wireless Bands

 

In attempt to maintain order within the entire radio frequency spectrum that is available to us, the FCC and other global communications standardization organizations have designated or set aside specific ranges of frequencies for specific uses. We call these "ISM bands". ISM stands for industrial, scientific and medical to denote where these frequencies are used.  ISM bands (specifically the 2.4 GHz and 5 GHz frequencies) are also used in commercial wireless networks. 

 

Typically access points, antennas, and amplifiers all use either the 2.4 GHz band, 5.8 GHz band, or both for WiFi. Other ISM bands have been set aside for things like cell phone use, RFID chips, emergency/municipal use, and military use.

 


Wireless Security

 

As mentioned previously, one of the big emerging issues with wireless networking is security. Without a physical cable that can be plugged and unplugged, the only method to control who can do what on a network is to build it into the software and protocol. That means it is critical to set up a wireless network with appropriate security measures and to be aware of the security status of any network you connect to.

 

For most small networks, methods such as WPA, WPA2, or WPA-PSK allow the safe identification of nodes that should be allowed on a network with passwords and other controls. Wireless routers can also use access passwords to allow administrators to adjust or update security features as required.

 
If you have questions about a wireless project or application, contact L-com's technical support line for a live response and expert advice!
 
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