Monday, November 14, 2011

The reality of video over wireless architecture


In just the last few years, video application usage has increased significantly and is comprising a greater portion of Internet traffic every day. Rich-media-hungry smartphones and tablets have flooded the marketplace
and more applications that drive video usage continue to arrive on the market.


Providing high-quality video over wireless poses challenges above and beyond sheer bandwidth requirements. For starters, video traffic has very low tolerance for packet loss in the transport network from video server to video client. High or variable latency can also cause issues for streaming video applications.
Wireless networks must take these factors into consideration during the design phase.Video over wireless becomes even more challenging in high density, high-usage scenarios such as classrooms or training
rooms where dozens of users may be simultaneously accessing a single video source. Worst-case scenarios must be considered when designing wireless networks that will be used for such applications.


A key to delivering high-quality video over wireless is sufficient bandwidth capacity of the wireless network and its ability to deliver high throughput in actual operation. Video operates at a constant bit rate so it becomes a math problem to determine the overall capacity required of the network based on maximum number of expected users and the bandwidth required by the highest rate applications. Video is frequently the highest bandwidth application expected on most networks.

To generate higher capacity , people always refer to multicast approach. With multicast video, a single video stream is sent from the source with users desiring to watch the stream subscribing to it. This reduces bandwidth consumption on the network since a separate stream does not need to be established and maintained between the video source and each individual station. This works well for wired networks; however in wireless, multicast packets are re-transmitted if packet loss is experienced a common occurrence in wireless. If a multicast video packet is corrupted, all wireless users subscribed to that video will experience degraded quality.

In fact, the wireless infrastructure still being considered immature in dealing with video streaming. Though we have MIMO wireless , but as the number of user increase, the capacity will gradually decrease.




Thursday, October 13, 2011

Nexus Prime to beat Iphone 4S...really?


This week in the UK the Samsung Galaxy S II was awarded Phone of the Year by T3, and there the person accepting the award, UK Samsung Sales Director Andrew Glass, let loose the official name for the next Google hero phone: Nexus Prime. This normally wouldn’t be such a big deal for a smartphone, but when it comes to it being the platform of choice for google’s next big Android update Ice Cream Sandwich, we’ve just gotta know! So thusly there it is, Nexus Prime, and according the Glass again, we’ll be seeing it SOON.

Expected sometime inside the next two to three weeks, we’d originally expected to see this device today at CTIA in California. What happened instead was a delay reportedly due to the passing of legendary competitor Steve Jobs. In good taste it seems, Google and Samsung pushed the release date back a bit so as not to clash with the memorial services. Today we find that we DO get at least one detail on the upcoming superphone: a name. Here’s what Glass said, his words exactly:

“You will have an announcement of the Nexus Prime very shortly and will be seeing it in shops sooner than you think.” – Glass

Can you even bear the excitement welling up inside you? Your eyeballs will burst and your tongue will explode if you think about it too hard, settle down! Then proceed calmly to our big Nexus Portal for all the information you might need before the release. No worries!

Friday, July 22, 2011

One million Apple`s Lion download

Just within one day, 1one million copies has been downloaded for the new Apple OS X Lion. In addition to three other products, Apple released OS X Lion yesterday, an update to the Mac operating system that has be in the making since 2009. It seems that there were quite a few people waiting for the OS X release–apparently Lion was downloaded over 1 million times yesterday. That sets Mac OS X 10.7 as the fastest downloaded OS in Apple’s history.

Coincidentally, when Apple launched the Mac App Store back in January, it too received 1 million downloads in its first 24 hours. Lion was made available yesterday in the Mac App Store for $29.99, which was also a first for Apple since it used to offer a physical copy of the software available in its retail stores. However, customers had only one choice if they wanted Lion on the first day of its release, and that was the Mac App Store.

Apple is getting their torque while Microsoft is still looking for the suitable nut to tight the loose OS.

Monday, June 27, 2011

Sony Ericsson cool with Android

Mobile-phone maker Sony Ericsson unveiled two new Android models in a bid to grab more of the burgeoning smartphone market.

The company, a joint venture between L.M. Ericsson and Sony Corp, plans to launch the Xperia ray and Xperia active models during the third quarter, its chiefmarketing officer Steve Walker announced.

The new models should help the company expand its 11% market share of the Android segment, Walker said.

"Android smartphones is a rapidly growing part of the market, and we see our share within that market growing," Walker told The Associated Press.

London-based Sony Ericsson, which saw its phone unit sales drop 23% in the first quarter from a year earlier, is moving away from cheaper phone models and seeking to take on Apple Inc's iPhone, Research in Motion's Blackberry and Nokia Corp's N9 in the higher-priced smartphone segment.

Thursday, June 9, 2011

Microsoft, Aruba and Cisco to form Mobile-convergence at IIUM Community

International Islamic University, IIUM tends to have multi-unified integrated system where various IT network brand have been integrated to work each other in the single unified communication.

The latest OCS deployment in IIUM give us a wide access towards a better and effective communication world widely. Even though this Service just being implemented among technical staff and higher management level, still it will give a significant breakthrough to become IIUM Digital Campus. Together with the new adoption of Cisco IP Phone, users will have unified communication  via cross-product tunneling implementation.

In a very soon VoWIFI will take into the the picture at IIUM Community as the bridge between Aruba Wireless and Cisco UC Manager is going to be establish via SIP communication channel.

Tuesday, May 31, 2011

2011 review : Is Bluecat better than Infoblox?


.Mid of last year, we have seen a total solution of IPAM, DHCP and DNS from Infoblox. The PoC set up by Mr. Chris Wan. Along the PoC, I’m satisfied with all the features introduced by Infoblox. It really suit IIUM future planning on convergence infrastructure. After the director remarks on the early January 2011, IT Division of IIUM will embark on cloud computing, convergence system and ubiquitous network. Definitely, IIUM require structured DNS infrastructure, centralized DHCP and enterprise IP Address Management (IPAM) system.
Today, we need to see another solution on IPAM, DCHP and DNS. The presentation presented by Rick Choo from BlueCat Networks. Overall presentation shows the strength of BlueCat on IPV6 enrollment. What impress me, a reputable non-microsoft based company (PNC info) is world-widely using BlueCat solutions. To compare between InfoBlox and BlueCat… we need to perform PoC for certain period.

Multimedia transmission over Aruba wireless

Today, I got a chance attending a product showcase session with the guy in the video below: Robert Fenstermacher, at Hilton Kuala Lumpur. The event organized by Synergy TechWave.

 I'm quite impress on its solution for making a multimedia over wireless more durable. Actually, we have planned couple of project in the future to improve our educational digital infrastructure. We are looking forward for a in-house IPTV over wifi (multicast), in-house Voice over wifi (VoWifi) and Video over wifi (unicast) solutions.

Probably, if we are able to provide a VoWifi in our campus, the mobile phone company will loose their margin of profit. Just imagine, if 20,000 student populations now able to communicate (voice call, video call and facetime) among them freely using their own iPhone/Android/Blackberry via campus wifi... then, the sales of prepaid card of Celcom, Maxis, Digi, TuneTalk, U-Mobile might be dropped tremendously right ?

I believe, the future educational trend will be moved to on demand practices which then lead to bandwidth drain at the gateway layer. In Malaysia, the cost of Metro-E services is really, really, really.. expensive. Most of the university can't afford to subscribe 1Gbps, but that's the demand right now. In fact, in average, Malaysian University only got between 64 Mbps - 200 Mbps for their internet access. Imagine.... is it enough if they have 20,000 population on campus ?? Jaring, Telekom, TIMEdotCom .. please give more discount to them....

Bandwidth management can't solve everything. Cache technology also can't solve everything. Definitely, the University might need a reliable storage to store the local content and broadcast the media on demand locally. The future trend now moving towards a reliable and secured high speed wifi connection. iPad, iPhone, Tablet, Android users are really demanding on a high speed wireless services to run the application inside it especially facetime.

Fenstermacher have shown to us the strength of Aruba multimedia-grade solution which I think can facilitate us to set up a substantial media on demand over wifi platform locally. If the University want to have a state of the art facilities for future mobility campus, they have to invest on storage and wireless infrastructure.

Wednesday, April 20, 2011

Intel shocks for their Q1 profit, AMD is sleeping

Latest information told us that Intel once again surprise us and themselves for their highest sales in quarter.The company expected to pull in roughly $11.6 billion, topping last quarter (and its previous record) by $500 million. Looks like the company was being conservative enough to make Pat Robertson blush -- it raked in a grand total of $12.8 billion in Q1 of 2011. About $500 million of that discrepancy can be explained by the acquisition of McAfee and Infineon, the rest is thanks to huge increases in sales across all market segments. Now go ahead, Intel, you just pretend to be surprised like last quarter.

What happen then with AMD. still sleeping? It seems this isn't even competition anymore. It's more like a 5th grader bullying a 2nd grade kid. You've got to give them big guys all the credit as clearly their technology is light years ahead of AMD. Bulldozer what? It's just another lame trick and it's not gonna be a game changer. My advice to AMD is stop wasting time and focus more on the GFX dept. instead. It's impossible for them to win both sides. Just like how Intel could never get a piece of the pie Nvidia and ATI/AMD shared all these years. Just focus on what you're good at and you might still stand a chance. Sorry this might be a little harsh on the AMD fanboys but it's the honest truth that's happening. Phenom II X6 is good, but no where near even the Core i5 760. There's a large difference between "good" and "great". If Intel's non existant, then AMD would've taken its place and worthy to be great

Tech Trader Daily
Intel

Saturday, April 16, 2011

5 trends for 2011 smartphone

Back in 2001, when Nokia and Symbian has grouped together in design a smartphone, the new phenomena has exploded. nonetheless they seem to have been badly beaten by the newcomers, Android, and also Apple unique ambition on Iphone. The smartphone is seem to the most popular gadget in the recent year, where industry have fight each other to produce more and more advance smartphone to the users. So, what will be the 'hots' for smartphone in the year 2011?


1. Android rules
Google made one of its best acquisitions when it purchased Andy Rubin's Android software. The timing, business model and features of Android please major phone manufacturers, like Samsung, Motorola, HTC, and LG, and users are happy with their smartphones that are well integrated with Google's online services. In the third quarter 2010, Gartner estimated 25.5% market share in the smartphone market for Android globally.

Android's growth has been phenomenal during 2010. Samsung Galaxy series was acclaimed everywhere. Google has frequently released new versions and some growth pains have been identified. Fragmentation (application developers have to make extra work to get their apps run on different Android versions), however, is real. Android's market share won't grow as fast in 2011 as it did in 2010, but it is possible that Android could catch Symbian (36.6% market share) and become the number one smartphone operating system.

2. New Apple iPhone models
Apple has been able to resist the temptation to introduce cheaper iPhone models, because the iPhone has been selling so well. Its share from global smartphone market is 16.7%. This is an exception in Apple's product range. Fairly quickly after the high-end iPod player was introduced, Apple launced cheaper and smaller iPod Nano and iPod shuffle products to ensure more people could afford an iPod. Apple is offering laptops for different user and price segments: the Macbook, the MacBook Air and the MacBook Pro.

The day will come when Apple introduces a cheaper and smaller iPhone, and it could be in 2011. Android has already eaten iPhone's market share, mind share and application market, and Apple will respond.

3. Symbian won't go away
Symbian and Nokia started to create the smartphone concept and market in 2001, when they introduced Nokia's first cameraphone where you could develop new applications and let other users download the apps to their phones. For many years Symbian's smartphone market share was around 60 and 80 percent, largely because at the time, Nokia had an innovative and extensive smartphone product range. Now Symbian operating system is running in 36.6% of new smartphones. Although Nokia can market Symbian smartphones for under $100 (and make profit), Symbian's transition to touch screen software hasn't been a success.

Nonetheless, Symbian will survive in Nokia's low-end and mid-range smartphones. Customers who don't care about the operating system or don't intend to download extra apps, but only need navigation or unlimited music downloads, make safe choices and get another Nokia phone that can deliver the vital functionality.

4. MeeGo will be hyped by Nokia's new management
Nokia has an image problem for two reasons. First, it has not succeeded in the US and second, it hasn't introduced credible high-end smartphones recently. Nokia's new management, driven by the new CEO Stephen Elop, will use MeeGo as a tool to fix these problems.

We should see high-end smartphones and a tablet powered by MeeGo in 2011. Otherwise, Nokia can forget about the whole MeeGo business.

5. A perfect combination: BlackBerry and Windows Phone
Both Blackberry and Windows Phone have suffered in competition against Android and the iPhone. Blackberry's market share has declined to 14.8% in 3Q2010, whereas Microsoft's Windows Phone market share had fallen to 2.8%. It is almost impossible to see why Nokia would license Microsoft's operating system for smartphones, because Nokia is capable and has the resources to develop its own software. It is and has been more successful than Microsoft as well.

In contrast, it is easy to see why RIM would license Windows Phone software for its Blackberry smartphones. Blackberry's transition to touch screen software has been critized. Now, Microsoft has brand new touch screen operating system. More importantly, Blackberry customers are businesses who can afford to deploy RIM's messaging backbone for smartphones. Corporate CIOs who are running Microsoft Exchange systems would be more than happy to purchase Blackberry smartphones running on Windows Phone software that integrate seamlessly to Exchange and Blackberry messaging systems.

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