Wireless expert cautions against mixing Wi-Fi, DAS

In a recent post on The Cabling Blog, Oberon Inc.'s director of engineering and co-founder Scott Thompson discussed dos and don'ts of in-building distributed antenna systems. Cabling Installation & Maintenance reported in its April issue that in-building DAS are growing in popularity as wireless-device users demand connectivity everywhere, including inside buildings constructed of materials that can interfere with the wireless antenna systems residing indoors.

In his post, Thompson notes, "Clearly as people become more dependent on mobile voice and data services, there is a growing expectation for network connectivity everywhere, indoors and outdoors. DAS and related in-building wireless systems provide a means to match this expectation, even in the most challenging indoor environments."

He stresses, though, that a DAS is a different architecture than the 802.11-based wireless LAN architecture deployed within buildings. 802.11 systems comprise distributed access points with connected antennas, rather than distributed antennas. And he further cautions users not to give in to the temptation to include private wireless LAN traffic over the DAS. "Generally speaking," he says, "when you use something in a way for which it was not intended, you don't get the results you want." He also points out that Cisco has issued a positioning statement indicating the company "does not certify, endorse, or provide RF support for Wi-Fi deployments over any distributed antenna system.

"Although not specifically precluding the use of Cisco wireless LAN products in a DAS, the statement recommends special consideration of signal coverage, client-to-access-point density, client roaming, location-based services, and the impact on the 802.11n antennas used by 802.11n access points," Thompson says in the blog.

View the entire blog entry here.

THE CABLING BLOG


Patrick McLaughlin @cablingmag

Matt
Vincent @CablingTweets

RELATED COMPANIES

FreeSpace Networks

FreeSpace Networks design and manufacture a range of high performance industrial point to point o...

EXFO

Provides next-generation test and service assurance solutions for wireline and wireless network o...

Connectivitywerx

Connectivitywerx provides complete turnkey design/build network connectivity solutions ranging f...

Led Rasvjeta Lux Ltd

Specializes in wireless outdoor and indoor air quality special lighting solutions, lighting effec...

CI&M VIDEO

SPONSORED CONTENT

EDITORIAL GUIDES

There is no current content available.

WHITE PAPERS

The 8-Fiber Solution for Today’s Data Center

April 6, 2015 Determining the right fiber count is vital for the cost and performance of today’s high-density 40/100G data center and network infrastructure appl...

Passive Optical Port Replication in the Data Center

March 16, 2015 What is port replication? Essentially, port replication is “mirroring” the ports of active fiber optic hardware in a passive component (fiber patch...
Sponsored by

Solving the Workplace Speech Privacy Crisis

February 10, 2015 When you think of an office building, chances are you picture private offices along the walls and cubicles taking up the open space in the middle. ...

WEBCASTS

Applications for 28AWG Twisted Pair Cabling Systems

The telecommunications room is housing more and more equipment, driving the need to maximize the space available. One option for creating more space is to shrink the size of the network cabling, wh...

Category 8 Cabling Update—Spring 2015

Still months away from the completion of Category 8 cabling specifications, the industry nonetheless moves forward as user organizations plan for their future networks, with Category 8 cabling part...
May 21, 2015

High-Power PoE Deployment Challenges and Solutions

Attendees of this webinar, sponsored by Omnitron Systems, will learn how to design networks that take advantage of developments high-power PoE technology, how to deploy fiber to reach remote P...
May 12, 2015

SPEED FEED

Speed Feed links you to a year’s worth of Cabling Installation & Maintenance articles in one easy-to-browse list.

CONNECT WITH US

Join our group
Follow Us & Get Updates
Industry Alerts & Reactions
  Add Us For Daily News
Email The Editor

SOCIAL ACTIVITY

© 2014. PennWell Corporation. All Rights Reserved. PRIVACY POLICY | TERMS AND CONDITIONS | SITE MAP