Email Delivery

Receive new posts as email.

Email address

Syndicate this site

RSS | Atom


About This Site
Contact Us
Privacy Policy


February 2009
Sun Mon Tues Wed Thurs Fri Sat
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28

Stories by Category

2.5G and 3G :: 2.5G and 3G
4G :: 4G
802.11a :: 802.11a
802.11e :: 802.11e
802.11g :: 802.11g
802.11n :: 802.11n
802.1X :: 802.1X
802.20 :: 802.20
Academia :: Academia
Adapters :: Adapters
Administrative Detail :: Administrative Detail
Aggregators :: Aggregators
Air Travel :: Air Travel
Appliances :: Appliances
April Fool's :: April Fool's
Aquatic :: Aquatic
Basics :: Basics
Blogging :: Blogging
Bluetooth :: Bluetooth
Book review :: Book review
Broadband Wireless :: Broadband Wireless
Cellular :: Cellular
Chips :: Chips
Cluelessness :: Cluelessness
Community Networking :: Community Networking
Commuting :: Commuting
Conferences :: Conferences
Consumer Electronics :: Consumer Electronics
Culture :: Culture
Deals :: Deals
Enterprise :: Enterprise
Financial :: Financial
Free :: Free
Future :: Future
Gadgets :: Gadgets
Gaming :: Gaming
Guest Commentary :: Guest Commentary
Hacking :: Hacking
Hardware :: Hardware
Health :: Health
History :: History
Home :: Home
Home Entertainment :: Home Entertainment
Hot Spot :: Hot Spot
Hot Spot Advertising :: Hot Spot Advertising
Hotels :: Hotels
Humor :: Humor
Industry :: Industry
International :: International
Legal :: Legal
Libraries :: Libraries
Listen In :: Listen In
Locally cached :: Locally cached
Location :: Location
Mainstream Media :: Mainstream Media
Media :: Media
Medical :: Medical
Mesh :: Mesh
Metro-Scale Networks :: Metro-Scale Networks
Monitoring and Testing :: Monitoring and Testing
Municipal :: Municipal
Music :: Music
News :: News
Open Source :: Open Source
PDAs :: PDAs
Phones :: Phones
Photography :: Photography
Podcasts :: Podcasts
Politics :: Politics
Power Line :: Power Line
Public Safety :: Public Safety
Rails :: Rails
Regulation :: Regulation
Research :: Research
Residential :: Residential
Road Warrior :: Road Warrior
Roaming :: Roaming
Rural :: Rural
Satellite :: Satellite
Schedules :: Schedules
Security :: Security
Self-Promotion :: Self-Promotion
Small-Medium Sized Business :: Small-Medium Sized Business
Smartphones :: Smartphones
Sock Puppets :: Sock Puppets
Software :: Software
Spectrum :: Spectrum
Standards :: Standards
Streaming :: Streaming
Transportation and Lodging :: Transportation and Lodging
Unclassified :: Unclassified
Unique :: Unique
Universities :: Universities
Utilities :: Utilities
Vendor analysis :: Vendor analysis
Vertical Markets :: Vertical Markets
Video :: Video
Videocasts :: Videocasts
Voice :: Voice
WLAN Switches :: WLAN Switches
Wee-Fi :: Wee-Fi
Who's Hot Today? :: Who's Hot Today?
ZigBee :: ZigBee
wISP :: wISP


February 2009 | January 2009 | December 2008 | November 2008 | October 2008 | September 2008 | August 2008 | July 2008 | June 2008 | May 2008 | April 2008 | March 2008 | February 2008 | January 2008 | December 2007 | November 2007 | October 2007 | September 2007 | August 2007 | July 2007 | June 2007 | May 2007 | April 2007 | March 2007 | February 2007 | January 2007 | December 2006 | November 2006 | October 2006 | September 2006 | August 2006 | July 2006 | June 2006 | May 2006 | April 2006 | March 2006 | February 2006 | January 2006 | December 2005 | November 2005 | October 2005 | September 2005 | August 2005 | July 2005 | June 2005 | May 2005 | April 2005 | March 2005 | February 2005 | January 2005 | December 2004 | November 2004 | October 2004 | September 2004 | August 2004 | July 2004 | June 2004 | May 2004 | April 2004 | March 2004 | February 2004 | January 2004 | December 2003 | November 2003 | October 2003 | September 2003 | August 2003 | July 2003 | June 2003 | May 2003 | April 2003 | March 2003 | February 2003 | January 2003 | December 2002 | November 2002 | October 2002 | September 2002 | August 2002 | July 2002 | June 2002 | May 2002 | April 2002 | March 2002 | February 2002 | January 2002 | December 2001 | November 2001 | October 2001 | September 2001 | August 2001 | July 2001 | June 2001 | May 2001 | April 2001 |

Recent Entries

Sperren Sie Endlich Ihren Kopf Auf
Wi-Fi Group Finalizes Latest Wireless Flavor
Seattle Bans Wi-Fi for Public Safety Reasons
"No Neighbor" Wi-Fi Eliminates Interference

Site Philosophy

This site operates as an independent editorial operation. Advertising, sponsorships, and other non-editorial materials represent the opinions and messages of their respective origins, and not of the site operator.


Entire site and all contents except otherwise noted © Copyright 2001-2009 by Glenn Fleishman. Some images ©2006 Jupiterimages Corporation. All rights reserved. Please contact us for reprint rights. Linking is, of course, free and encouraged.

Powered by
Movable Type

Recently in April Fool's Category

April 1, 2008

Sperren Sie Endlich Ihren Kopf Auf

By Glenn Fleishman

Wi-Fi spectrum to be auctioned off: John C. Dvorak discovers that the U.S. Congress has voted to sell the unlicensed spectrum in which Wi-Fi works by 2012. In the meantime, a license code will be needed, purchased from the FCC, and coded into your devices' SSIDs. Microwave ovens won't be exempt; a $10 per month "potential interference fee" will be collected. Think this is too hard to regulate? Remember that TV detector vans drive around Britain fining people who lack a TV license!

Exploding head: An English schoolteacher's head exploded due to electromagnetic radiation at his school in Cotswold as part of an experiment gone awry.

Posted by Glenn Fleishman at 2:15 PM | Permanent Link | Categories: April Fool's | No Comments

April 1, 2008

Wi-Fi Group Finalizes Latest Wireless Flavor

By Glenn Fleishman

The twist? This time, wires are involved: The Wi-Fi Alliance is poised to provide certification for a quietly developed flavor of 802.11--one so quietly developed that its true implications weren't understood, and few impediments were put in its way, such as internecine squabbling over esoteric details. The new flavor, 802.11af, will be ratified as Wi-Fi Over Ethernet (WoE), an unfortunate acronym that shouldn't bode poorly for the standard's future. (It's probably better they opted against Wi-Fi over Wires, WoW, which many geeks would have confused with World of Warcraft.)

Wi-Fi over Ethernet combines electromagnetic resonance--the ability of a EMF to excite signals in wires--with excess wired capacity in a manner similar to how broadband over powerline works. Where properly equipped 802.11af Ethernet switches and adapters are available, coupled with WOE-capable Wi-Fi systems, the Wi-Fi signals will simply be picked up and carried by the Ethernet network. Switching and transmission then become limited to the extent of the wired network--which will improve throughput and range. (A future standard might allow passive powering of lightweight devices from Ethernet, which is a neat reversal.)

This is in the same category of new convergent standards such as Bluetooth over 802.11 and FireWire (IEEE 1394) over IEEE 741-2007: ways to provide better specs on one standard by combining it with another that has a complementary purpose.

Now, of course, modern computing systems tend to include gigabit Ethernet and Wi-Fi, so why do we need a third modality that combines the two? Partly because of new devices like the MacBook Air and smartphones like BlackBerrys with Wi-Fi built in. Without an Ethernet adapter, the range of these devices can be limited, and throughput restricted.

You were waiting for the magic number: How fast is WoE? Nearly 1600 Mbps raw speed, and about 30 Mbps of raw throughput. Before you scoff, remember that you might be able to use WoE over hundreds of meters across a switched Ethernet network, where a Wi-Fi signal might stretch just a hundred or two hundred feet. If Wi-Fi beats WoE, a computer will use Wi-F.

The Wi-Fi Alliance hasn't set the date of their certification yet, but I'm told it will happen any day. The mark will be added to the list of A, B, G, Draft N, WMM Power Save, and other symbols, as AF. The industry is considering a campaign around the phrase, "WoE is me(tm)!" trying to capture the excitement of the new synergy. Again, unfortunate acronym.

The IEEE has finalized and approved a draft, but final ratification isn't expected until 1 April 2009.

Posted by Glenn Fleishman at 8:22 AM | Permanent Link | Categories: April Fool's | No Comments | No TrackBacks

April 1, 2005

Seattle Bans Wi-Fi for Public Safety Reasons

By Glenn Fleishman

A report in TidBITS dated April 1 explains Seattle's recent coffeehouse ban: As we all know, Wi-Fi commonly operates in the 2.4 GHz band, the same band used by microwave ovens to heat food through the bipolar effect in which rapid switching causes friction in water molecules. (Not resonance as is often mistakenly stated.)

This can apparently lead to dangerous results not previously seen as the density of Wi-Fi usage increases. At a local coffeeshop, an ill-advised gateway placement and too many Wi-Fi users resulted in the espresso machine's boiler exploding from too much pressure. Several were injured, only one seriously; all were bloggers.

Seattle has formed the WTF (Wi-Fi Testing Foundation) to better understand this incident, but has proactively banned Wi-Fi until the results come in.

Posted by Glenn Fleishman at 6:40 AM | Permanent Link | Categories: April Fool's | 7 Comments | No TrackBacks

April 1, 2004

"No Neighbor" Wi-Fi Eliminates Interference

By Glenn Fleishman

Broadcom and Atheros drop conflict, team up for interference-free Wi-Fi: The Wi-Fi industry closed ranks today when a long-simmering dispute between Broadcom and Atheros over interference caused by competing high-speed products was dropped in favor of joint development.

There's a history of this form of cooperation in which companies that otherwise compete cross-license patents and develop standards so that each can offer products that benefit the consumer.

As Tom's Networking reports, the new SuperBurner-AF technology overcomes both physical obstructions that can reduce the range of wireless networks while also eliminating the interference caused by nearby wireless LANs.

In related news, Tes-La has introduced Wi-Fi-based laptop charging. The Tes-La wireless power system allows hotspot operaters to add a TCP/EP (TCP over Electrical Power) to their access points, while users add an adapter to their power jack. TCP/EP allows a hotspot to meter and charge for electrical use over Wi-Fi.

Tes-La's leading competitor, Noside Connections, claims Tes-La technology could cause death and injury, which all business travels know is a small price to pay to keep one's laptop charged.

In an entirely unrelated story except for the name "Connections," but which happens to fit in this space, prisoners in the UK get free Wi-Fi. It's the latest innovative approach to rehabilitation coming from the country that brought us debtor's prison and jail time for failure to pay television license fees.

Meanwhile, Doc Searls of Linux Journal forwarded this item: Reuters reports the discovery of a Wi-Fi hot spot "about the size of Turkey" in the Atlantic Ocean, just west of the Canary Islands. The dimensions of the spot were determined by combined reports of communications officers on-board container cargo and cruise ships. Asked to comment on the quality of the connection through the hot spot, Ozmo Zdilmidgi, who works with the Maersk Sealand company, said, "I dunno. It was WEPped and we couldn't get on."

Posted by Glenn Fleishman at 8:13 AM | Permanent Link | Categories: April Fool's | No Comments | No TrackBacks

« Appliances | Main Index | Archives | Aquatic »