ieee 802.11 wlan

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Throughput Enhancement of IEEE 802.11 WLAN Via Frame Aggregation

The popular IEEE 802.11 WLAN is known to achieve relatively small throughput performance compared to the underlying PHYsical layer PHY transmission rate. This is due mainly to the large overheads composed of Medium Access Control MAC header, PHY preamble/header, backoff time, ACKnowledgement ACK transmission, and some Inter-Frame Spaces IFSs. Since...

Tags: IEEE 802.11, Seoul National University, Aggregation, Transmission, IEEE 802.11 WLAN, Wireless LANs, Wi-Fi, Wireless

White papers 2004-07-07

Additional Resources

Fastest-growing Web categories in France in May 2008

Site Category Apr-2008 May-2008 Growth Total Internet : Total Audience 30,649 31,066 1% Weather 6,107 7,445 22% Retail - Sports/Outdoor 2,145 2,586 21% Genealogy 772 930 21% Maps 10,347 11,622 12% Sports 10,187 11,272 11% Travel...

Tags: Category, Government, Internet, Vertical Industries, Benefits, Healthcare, Enterprise Software, Software, Human Resources, NB

Blog posts 2008-08-21

Traffic to Olympics-related Web sites, August 8-11, 2008

Name August 8 August 9 August 10 August 11 Yahoo Olympics 1,477 3,324 2,839 5,253 NBC Olympics 2,664 4,008 3,264 4,560 AOL Olympics 395 1,010 1,205 1,192 Beijing2008.cn 429 780 581 607 New York Times Olympics 341 466 301 482...

Tags: Web, Web Site, Web Site Development, Web Technology, Channel Management, Internet, Marketing, NB

Blog posts 2008-08-21

Fifteen most buzzed-about athletes

Athlete Sport Country 1.Michael Phelps Swimming United States 2.Yao Ming Basketball China 3.Kobe Bryant Basketball United States 4.LeBron James Basketball United States 5.Dara Torres Swimming United States 6.Shawn Johnson Gymnastics United States 7.Laure Manaudou Swimming France...

Tags: Athlete, NB

Blog posts 2008-08-20

Mobile Internet Penetration Across Countries

Country Mobile Internet Penetration US 15.6% UK 12.9% Italy 11.9% Russia 11.2% Spain 10.8% France 9.6% Germany 7.4% China 6.8% Brazil 2.6% India 1.8% Source: Nielsen by NB

Tags: Mobile Internet, Mobile, Penetration, Advertising & Promotion, Marketing, NB

Blog posts 2008-08-20

Fasted-growing web categories in France in May 2008

May-08 Rank Apr-08 Rank Property Audience, 000 N/A N/A Total Internet 31,066 1 1 Google Sites 23,054 2 2 Microsoft Sites 20,667 3 3 Orange Sites 16,031 4 4 Iliad/Free.fr Sites 13,478 5 5 eBay 12,257 ...

Tags: Web, Site, Channel Management, Internet, Marketing, NB

Blog posts 2008-08-20

Gymnasts ranked by online buzz

Athlete Country Index 1.Shawn Johnson United States 100 2.Nastia Liukin United States 43 3.Jiang Yuyuan China 16 4.Anna Pavlova Russia 11 5.Yang Yilin China 11 6.Steliana Nistor Romania 8 7.Ksenia Semenova Russia 3 Source:...

Tags: Buzz, NB

Blog posts 2008-08-20

Gymnasts ranked by online buzz

Athlete Country Index 1.Shawn Johnson United States 100 2.Nastia Liukin United States 43 3.Jiang Yuyuan China 16 4.Anna Pavlova Russia 11 5.Yang Yilin China 11 6.Steliana Nistor Romania 8 7.Ksenia Semenova Russia 3 Source:...

Tags: Buzz, NB

Blog posts 2008-08-20

Pleasant 'Dream' for HTC, Google: FCC approves

The FCC has approved HTC's 'Dream' phone, which will now be the first Android-based handset to hit the market, InfoWeek reports. It will support T-Mobile's 3G network. (Let's see if it handles 3G better than Apple and AT&T.) Looks like it will have a "jog ball" (trackball?),...

Tags: FCC, Google Inc., High Tech Computer Corp., Bluetooth, Federal Government, 3G, Wi-Fi, Cellular Phones, Wireless, Government, Consumer Electronics, Personal Technology, Richard Koman

Blog posts 2008-08-19

HP delivers strong third quarter fueled by blades, international, notebooks

HP on Tuesday reported fiscal third quarter earnings of $2 billion, or 80 cents a share, on revenue of $28 billion, up 10 percent from a year ago. Excluding items, HP reported earnings of 86 cents a share, 3 cents ahead of Wall Street estimates. Revenue also...

Tags: Revenue, Notebook, Hewlett-Packard Co., Blade, Operating Profit, Earnings, Operational Accounting, Sales Strategy, Finance, Sales, Larry Dignan

Blog posts 2008-08-19

An Event Apart 2008: Day 2

The second day of An Event Apart will feature plenty of web standards jargon. I will be posting photos and notes from today's events. Unfortunately, the slides are reserved for attendees only, but I will try to gather as much information as...

Tags: Google Inc., Microformat, Tool, Post-it Note, Eric Meyer, CSS, Productivity, Keyboards, Scripting Languages, Software/Web Development, Web Development, Hardware, Peripherals, Andrew Mager

Blog posts 2008-08-19

Mobile handset sales down in 2Q: Market share race has three horses

NPD Group on Tuesday announced its second quarter handset sales tally and 28 million units were shipped to consumers, down 13 percent from a year ago. According to NPD, second quarter handset revenue was $2.4 billion, down 2 percent from a year ago. What's...

Tags: NPD Group Inc., Mobile, Handset, Sales, Cellular Phones, Smart Phones, Consumer Electronics, Personal Technology, Larry Dignan

Blog posts 2008-08-19

62.7% of US employees choose PPO plan for their medical insurance

Consumer Driven Health Plans, or CDHPs, increased by 43% from 2007, and now comprise nearly 13% of all plans offered by employers. The%age of employees enrolled in these plans nearly doubled, from six% in 2007 to 11.2% 2008. While preferred provider organizations PPOs continue to dominate the market, representing 54%...

Tags: Employee, Insurance, Plan, HMO, Healthcare, Vertical Industries, Benefits, Enterprise Software, Software, Human Resources, AM

Blog posts 2008-08-18

(Photos: Training for WMD terrorist attacks)

(Photos: Training for WMD terrorist attacks)2008 SF Responders WMD Training EventThe ARMY CBRNE response trailer that is referred to in the picture is really a 6-wheeled, Gator-style ATV that is self-propelled by its own engine. The picture of the SWAT officer holstering his pistol in his boot is an absolute...

Tags: Workforce management, training and certification, WMD terrorist attack, training, photograph

Discussion threads 2008-08-18

HP Pavilion Elite m9300t

At its core, our $1,100 HP Pavilion Elite m9300t review unit is a reasonably priced example of HP's midrange desktop. It gives you about $900 worth of basic computer, and an extra $200 in home theater-style extras. The good news is that this system is configurable, so if, like us,...

Tags: Desktops, DVD, Consumer electronics, Network technology, Hewlett-Packard Co., HP Pavilion, HP Pavilion Elite

Product reviews 2008-08-18

With FCC testing due soon, Google pushes white spaces

Google launched Free the Airwaves, a public advocacy site dedicated to pushing for what product manager Minnie Ingersoll calls "Wi-Fi on Steroids," meaning TV white spaces. Google and numerous other high-tech companies are pushing for the FCC to allow unlicensed use of the white spaces, much as...

Tags: FCC, Google Inc., Federal Government, Government, Richard Koman

Blog posts 2008-08-18

10 reasons to love Silverlight and 10 reasons to hate it

10 reasons to love Silverlight and 10 reasons to hate itRE: really bad storyIt is a slow news day for me. But I thought it was one of the better breakdowns I'd seen and I'm also fishing for .NET/Mac hints.=Ryanreally bad storymust be a slow news day... they blog about...

Tags: Microsoft development tools, Blogging, Microsoft Silverlight, Expression Blend

Discussion threads 2008-08-18

An Event Apart 2008: Day 1

The antique Palace Hotel in San Francisco houses An Event Apart, a collaboration of interactive presentations about web standards, user experience design, and best practices. The two-day conference features well-known speakers from around the world, including AEA's hosts Jeffrey Zeldman and Eric Meyer. ...

Tags: Web, Framework, Web Design, Interfaces, Craftsmanship, D, Channel Management, Marketing, Andrew Mager

Blog posts 2008-08-18

Don't downgrade me to XP!

I ordered several desktops last week for administrative staff and, unfortunately, overlooked the "Downgrade to Windows XP" option. This is, in fact, the default for HP's business systems, which certainly speaks to Microsoft's Vista debacle. The secretaries are thrilled that the machines on their desks are running XP...

Tags: Operating System, Microsoft Windows Vista, Microsoft Windows Vista (Longhorn), Microsoft Windows, Microsoft Windows XP, Operating Systems, Software, Christopher Dawson

Blog posts 2008-08-18

US visits to social networking sites in June 2008

Rank Name Domain Jun-08 May-08 Jun-07 Growth 1 MySpace www.myspace.com 71.92% 72.73% 77.42% -6% 2 Facebook www.facebook.com 16.91% 16.24% 11.60% 40% 3 myYearbook www.myyearbook.com 1.54% 1.40% 0.33% 318% 4 Tagged www.tagged.com 1.08% 1.00% 0.69% 45% 5 Bebo www.bebo.com 1.05% 0.90%...

Tags: Network, Social Networking, Online Communications, Marketing, Advertising & Promotion, NB

Blog posts 2008-08-18