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

Cable Labels UK

Cost effective cable labeling products. Our FREE web based software and templates give you the la...

Oberon Inc

Oberon is a leading designer and manufacturer of in-building wireless network infrastructure prod...

Sumitomo Electric Lightwave

Sumitomo Electric Lightwave (SEL) foresaw the migration to an all optical fiber network as early ...

Eureka Dry Tech Auto Dry Box

Eureka Auto Dry Box will provide moisture & humidity controlled storage for coax and other cables...

CI&M VIDEO

SPONSORED CONTENT

MUST-SEE PHOTOS

EDITORIAL GUIDES

There is no current content available.

WHITE PAPERS

Taking Your Network to 40/100G Ethernet

June 29, 2015 With the ratification of new industry standards and increased demands on data center throughput, 40/100G Ethernet will be an integral component of ...
Sponsored by

Wideband Multimode Fiber – What is it and why does it make sense?

June 17, 2015 Multimode fiber (MMF) cabling is the workhorse media of local area network (LAN) backbones and data centers because it offers the lowest cost means...
Sponsored by

Taking the Mystery Out of 600V Ethernet Applications

June 2, 2015 Ethernet technology was invented over 30 years ago as a robust way to interconnect computers in an office environment. The scale and performance of...
Sponsored by

WEBCASTS

Data Center Management and Cabling

The cabling infrastructure supporting a data center’s information technology network is an essential system to the facility’s proper functioning, but it is just one of many such essential systems. ...

Bringing Category 6A into the Enterprise

Historically, Category 6A was seen as a future-proofing solution for enterprise cabling.  With applications like Wi-Fi and PoE continuing to demand higher bandwidth and power, the time for Cat...

Taking Copper To Greater Heights With Pair Bonding and Vectoring

As the demand for higher bandwidth for Triple Play Services (voice, data, and video) continues to increase, the deployment of bonding continues to be an essential practice for today’s service provi...
Date: June 25, 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

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

SOCIAL ACTIVITY