Mobile Applications Monitor Noise

A mobile phone application developed by Sony Computer Science Laboratory will help make the environment more peaceful and far from noise pollution.

Nicolas Maisonneuve from Sony's labs in France and his team have developed a software application that can be downloaded named NoiseTube. NoiseTube use of smartphone users, to monitor the noise pollution that occurred in its place. "His goal is to make the phone as environmental sensors," said Masionneuve.

Initially this application works with a microphone to record sound through the phone. User then prompted to label the tape that they had to gather information such as sound source, before it is sent to the server NoiseTube.

Once the data is labeled with the name of the street and the city, this data is then converted by a software center in a format that can be used in Google Earth. Software in this server would then mark the location of which was considered noisy, with a danger label.

DetikINET of Newscientis launched on Friday (20/11/2009), so far the application can only operate in the smartphone of Sony Ericsson and Nokia. But like many people who are interested in the applications 'environment of love' is. Read More......

Google Acquires Gizmo5 VoIP

The news about Google's acquisition of the company Gizmo5 was no secret this week. The reason Google reportedly recently officially announced that it has acquired Gizmo5. And Gizzmo5 itself is a small company that provides service-based VoIP calls to the phone and computer.

In connection with that, Google expects the engineers will all Gizmo5 will soon join the Google Voice team. Google Voice is a call forwarding service based Internet which allows people to use one central number and have their own phone ringing on their choices.

Google does not say what features or technologies that will be adopted from Gizmo5 to Google in the near future. However, the addition of VoIP calls Google Voice products are a strong possibility that the adoption of the reference target.

In addition, the existence of Gizmo5 subscribers will still be able to continue using their services so far, but no new users will be allowed to register now. The provisions of the agreement were not known so far. Read More......

Apple Trying to Ban Atomic Reversing Snow Leopard

Apple reportedly has been restored support for Intel Atom processor in the latest Snow Leopard build.

"Atom seems to have resurrected his own style of zombie 10C535", which has confirmed a posting on the Steel's Blog. "Atom is living on another day, but nothing is concrete until the final version [Snow Leopard] 10.6.2 came out."

Not surprisingly, the ban Atom rampant speculation that triggered a short time that Apple is trying to close the rapidly growing community of Hackintosh Netbook.

For example, a reader of a newspaper there, known as the Los argue that Apple is only interested in forcing consumers to buy expensive hardware.

"This is the same as Palm Pre. Palm find their phone works with iTunes and Apple is now blocking the Palm Pre latest updates on iTunes. They're like a bunch of selfish kids, "wrote the Los. "It [is] another reason why I do not like Apple or their OS. I looked at Apple as 'Computing For Dummies' too. Most people I know bought from Apple for 2 reasons 1 there is: one of them seems to fit because they are different or because they do not know what they are doing and need a very simple OS. "

While what is disclosed other readers, which also spread Johnnyricomc similar sentiments.

"For me, this is just a small effort by Apple to control things. Microsoft will get a **** storm if they wanted to do something similar to the Apple brand hardware. "

Although the latest Snow Leopard build that supports the Atom processor (for now), Apple certainly will continue the efforts to prevent the spread of OS X on hardware that is "not valid". Read More......

3G For The World

The development of technology and 3G networks have been able to change the world of telecommunications. 3G gives the appearance of fresh and fulfill its function in improving the quality of telecommunications, increased bandwidth and supports a variety of more diverse applications.

Qualcomm and a telecommunications industry research institution named Pyramid Research and discuss about the development of 3G technology in developing countries, particularly Asia Pacific.

In an official statement received Qualcomm Okezone, found some interesting things about this third-generation technology.

Qualcomm findings and Pyramid mention that 3G is the potential to be the new standard of wireless networks in developing countries. This prediction is not without reason. So, now the government in developing countries began to think that providing more coverage of broadband and voice services standard facilities and the message becomes a very important thing.

In addition, the spectrum licenses would help the government find new revenue sources. This is also supported by a growing number of inexpensive handsets. Some vendors come from China even able to produce 3G devices at low cost.

These findings also mention the expansion of 3G customer segments. At the beginning of the emergence of 3G, operators are targeting the customers who come from upper middle class. But now, the consumer 3G services is more extensive and can be enjoyed by all those who came from among the young.

But unfortunately, the growth of 3G network users are not matched well with the quality of the network itself. The results of a survey conducted mention Qualcomm and Pyramid, the need for content and other services are still not fulfilled its full potential. This was due to the limited development of infrastructure and distribution network, particularly in remote areas.

That is why, the operators are advised to develop their own 3G networks to ensure the fulfillment of the needs of a larger capacity. They also must continue to increase their involvement in the development of devices and services. That way, these steps can help them in maintaining and improving customer loyalty in the service.

The role of government is also very important in applying the basis for the growth of 3G networks such as by providing 3G networks capable of providing greater capacity, providing adequate incentives and tools for developers, as well as pushing the price reduction for the content and services. Read More......

Artificial eyes can See through the wall

A method to track the movement behind the wall or in total darkness has been developed. This application is very useful when the hostage crisis to take care to seniors.

Technique called Radio Tomography Imaging (RTI), using a wireless radio transceiver targeted zone. Both send and receive radio signals.

By analyzing variations in signal strength, a computer program can produce black and white images of objects movement. This approach is similar to medical tomography computing, in which a program to analyze a series of X-ray scanner to produce images of internal organs.

Joey Wilson and Neal Patwari of the University of Utah, examine the RTI with the transceiver 24 to 34 tubes. Transceiver that is used similar to that used in the Zigbee network, which connects the same home thermostat and automated device or home other factories. This system was successfully tested inside and outside the room and through walls.

"Radio tomography can assist law enforcement and emergency management so that they know where to focus our attention," writes Patwari and Wilson. Read More......

2G to 3G EVOLUTION

2G networks were built mainly for voice data and slow transmission. Due to rapid changes in user expectation, they do not meet today's wireless needs. Evolution from 2G to 3G can be sub-divided into following phases:

* 2G to 2.5G
* 2.5G to 2.75G
* 2.75G to 3G

From 2G to 2.5G (GPRS)

The first major step in the evolution to 3G occurred with the introduction of General Packet Radio Service (GPRS). So the cellular services combined with GPRS became 2.5G.

GPRS could provide data rates from 56 kbit/s up to 114 kbit/s. It can be used for services such as Wireless Application Protocol (WAP) access, Short Message Service (SMS), Multimedia Messaging Service (MMS), and for Internet communication services such as email and World Wide Web access. GPRS data transfer is typically charged per megabyte of traffic transferred, while data communication via traditional circuit switching is billed per minute of connection time, independent of whether the user actually is utilizing the capacity or is in an idle state.

GPRS is a best-effort packet switched service, as opposed to circuit switching, where a certain Quality of Service (QoS) is guaranteed during the connection for non-mobile users. It provides moderate speed data transfer, by using unused Time division multiple access (TDMA) channels. Originally there was some thought to extend GPRS to cover other standards, but instead those networks are being converted to use the GSM standard, so that GSM is the only kind of network where GPRS is in use. GPRS is integrated into GSM Release 97 and newer releases. It was originally standardized by European Telecommunications Standards Institute (ETSI), but now by the 3rd Generation Partnership Project (3GPP).

From 2.5G to 2.75G

GPRS networks evolved to EDGE networks with the introduction of 8PSK encoding. Enhanced Data rates for GSM Evolution (EDGE), Enhanced GPRS (EGPRS), or IMT Single Carrier (IMT-SC) is a backward-compatible digital mobile phone technology that allows improved data transmission rates, as an extension on top of standard GSM. EDGE can be considered a 3G radio technology and is part of ITU's 3G definition, but is most frequently referred to as 2.75G. EDGE was deployed on GSM networks beginning in 2003—initially by Cingular (now AT&T) in the United States.

EDGE is standardized by 3GPP as part of the GSM family, and it is an upgrade that provides a potential three-fold increase in capacity of GSM/GPRS networks. The specification achieves higher data-rates by switching to more sophisticated methods of coding (8PSK), within existing GSM timeslots.

EDGE can be used for any packet switched application, such as an Internet, video and other multimedia.

From 2.75G to 3G

From EDGE networks the introduction of UMTS networks and technology is called pure 3G. 3G Bandwidth 5 MHz

Migrating from GPRS to UMTS

From GPRS network, the following network elements can be reused:

* Home location register (HLR)
* Visitor location register (VLR)
* Equipment identity register (EIR)
* Mobile switching centre (MSC) (vendor dependent)
* Authentication centre (AUC)
* Serving GPRS Support Node (SGSN) (vendor dependent)
* Gateway GPRS Support Node (GGSN)

From Global Service for Mobile (GSM) communication radio network, the following elements cannot be reused

* Base station controller (BSC)
* Base transceiver station (BTS)

They can remain in the network and be used in dual network operation where 2G and 3G networks co-exist while network migration and new 3G terminals become available for use in the network.

The UMTS network introduces new network elements that function as specified by 3GPP:

* Node B (base station)
* Radio Network Controller (RNC)
* Media Gateway (MGW)

The functionality of MSC and SGSN changes when going to UMTS. In a GSM system the MSC handles all the circuit switched operations like connecting A- and B-subscriber through the network. SGSN handles all the packet switched operations and transfers all the data in the network. In UMTS the Media gateway (MGW) take care of all data transfer in both circuit and packet switched networks. MSC and SGSN control MGW operations. The nodes are renamed to MSC-server and GSN-server.

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