A report from Burton Group suggests that new emerging standard of wireless network (WLAN / WiFi) 802.11n (Mimo) will start replacing wired Ethernet 802.3 networks within the next 2-3 years as it improves throughput and range compared to actual 802.11 b/g.

IT senior analyst Paul DeBasi goes even further and says "IT professionals should start thinking now about how they will deploy, maintain and benefit from an all-wireless LAN."

This is a joke isn't it ? Even if I'm a fervent of wireless technology, I simply cannot imagine how wireless networks will replace actual wired networks. Here are the main reasons:

• Bandwidth: With 802.11n the maximum theoretical throughput (using 2 steams) will be 248 Mbps meanwhile Ethernet 802.3an (2006) already provides 10Gbps and next IEEE study group target is 802.3ba with both 40 and 100Gbps. I don't even speak about signal attenuation releated to distance and obstacles.

• Frequency spectum 2.4 GHz & 5GHz are very narrow and number of available channels are limited. So maintaining high speed links, large number of clients without facing frequency overlaps and other electro-magnetic interferences seems very unlikely.
• Electro-smog: With 802.11n the range covered will be larger but this will have undoubtedly have a negative impact on performance and signal strength specially when using ISM 2.4 GHz spectrum in a wireless crowed environment.
• VoWLAN capacity: Several studies have been done to determine, how many simultaneous calls one AP can handle. The number of simultaneous calls is 15 before observed speech quality is lowered via increased delay. (I assume the study also get rid of telephone wires).
• A "wireless only" corporate office means that PBX system also have to rely on wireless network, otherwise it would be complete non-sense to pull wire only for telephone and use wireless connectivity for computers.

Is this report a hoax or do they, at the Burton Group, have some enlighten prophets?

Source: ZDNet
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Found on BBC website a study, which questioned 1125 IT professional in Europe, revealing that more than 50% of IT projects are not delivered on time.

 

The study conducted by by HP and the Economist Intelligence Unit says the the 3 most commons causes for delay are :

• Outsourcing (it reminds me something)
• Changing priorities half way through (certainly not always an IT responsibility)
• Poor coordination between managers (sic!)

Other interesting points found on the article are that : 

• 51% of European IT's say there would be not risk to their job. This percentage slips to 33% in Asia and 22% in Americas.

• 57% of participants to the study said that less than 50% of the IT initiatives in their firms had a positive outcome. In 2006 this figure was 54%

In Europe Sweden comes first when it is about delivering IT project on time with 44% then follow

• Switzerland 24%

• Czech Republic 20%

• Germany 19%

• Denmark 16%

• UK 11%

• Finland 8%

• Israel 8%

• France 6%

• Belgium 4%

• Italy 4%

• Netherlands 4%

• Russia 4%

• Spain 4%

Source : BBC News

There were in May 2007 284 millions Internet users in Asia, according comScore study, who are online an average of 20.2 hours and view 2171 pages per month while the worldwide average is 25.2 hours and 2519 pages.

Asia region represents the third of the Worldwide Internet population. China leads with 91.5 millions users (they only represent 9% of the country's population), followed by Japan (53 million) and South Korea (26.3 million). Internet users of these 3 countries represent, all together, 60% of all Asia-Pacific Internet users.

In term of usage rate, South Korea in on the top with 65%, closely followed by Australia (62%), New Zeland (60%) and Hong Kong (59%), India is at the rear with only 3%.

If Google is the most popular web site worldwide, ComScore's study shows that in Asia Yahoo remains the prefered site in Hong Kong, India, Japan, Malaysia, Singapore, and Taiwan. Meanwhile, Microsoft domains are the most visited in Australia, China, and New Zealand, with the Seoul-based NHN Corporation taking top honors in South Korea.

Source: The Register