Sunday, August 31, 2008

IEEE 802.11r WiFi roaming standard approved!

The newest Wi-Fi protocol, 802.11r, which has become the de facto "Wireless VoIP standard", is now a published standard of the Institute of Electrical and Electronics Engineers (IEEE) standards board.

ieee802-11-logo On this day, 29th August 2008, the IEEE has formally announced that 802.11r is approved. According to Wikipedia, IEEE 802.11r-2008 or fast BSS transition (FT) is an amendment to the IEEE 802.11 standard to permit continuous connectivity aboard wireless devices in motion, with fast and secure handoffs from one base station to another managed in a seamless manner.

The arrival of 11r is timely. Voice over Wi-Fi is expected to generate increased interest as more dual-mode Wi-Fi/cellular solutions are delivered this year. 802.11f provides a fast enough hand-off for data services, but that can take a second or two if cryptography is being used, so 802.11r was kicked off in 2004 to provide consistent connections. The handoffs take place in less than 50 milliseconds, rather than the several seconds needed to negotiate a secured connection.


Given the need to integrate with 802.11i security and 802.11e QoS standards, developing a workable standard for fast roaming is challenging. Not surprisingly, 11r defines a complex architecture, though one that is not expected to require forklift upgrades of existing hardware. But getting all the software right will be difficult.

Related readings:

802.11r strengthens wireless voice

Friday, August 29, 2008

Mobile Number Portability in Malaysia

After YEARS of discussing this topic, MNP, by the MCMC. Finally, it will be implemented on 29th August 2008 ( Friday ). It would started for Pre-paid user and followed up by Post-paid user in a couple of weeks. The nationwide launch for the MNP service is in October.

With the MNP implementation, the mobile user no longer 'tight' with their mobile service operator.  You will have the convenient freedom of switching to competing mobile service operators while retaining your respective phone numbers. It means that you can switch any operator from Digi to Maxis or Maxis to Celcom etc. with your phone number e.g. +6016-XXXYYYY remains the same!


There will be a RM25 charge everytime the MNP is used to switch to a new operators.

More info on MNP :


Sunday, August 24, 2008

Windows 7 launch in 2009 ?

Take it as a sign that Windows Vista is a failure to the market ( Even I am downgrading from Vista License to XP for my new Dell laptop ), rumors claims that the Windows 7 might be release earlier in early 2009?!

Windows 7, formerly codenamed as Blackcomb or Vienna, is the working code name by Microsoft as a successor of Windows Vista. Microsoft spokemen claims that Windows 7 will be focusing on user centric, performance improvements and break the compatibility issue with Vista that Vista has with previous version.

More info on : Windows 7 News

Some screenshots for Windows 7, it is fake or real ?














More screenshots:

Feast Your Eyes on the Leaked Screenshots of Windows 7 M1 Ultimate Edition!

Windows 7 screenshots are they true?????