Tuesday, January 13, 2009

Location-Based Service

A location-based service (LBS) is a mobile device service through the mobile network and utilizing the ability to make use of the geographical position of the mobile device. LBS services include parcel tracking and vehicle tracking services.

Several categories of methods can be used to find the location of the subscriber. The simple and standard solution is GPS-based LBS. It is used to maintain knowledge of the exact location, however can be expensive for the end-user, as they would have to invest in a GPS-equipped handset. GPS is based on the concept of trilateration, a basic geometric principle that allows finding one location if one knows its distance from other, already known locations.

GSM localization is the second option. Finding the location of a mobile device in relation to its cell site is another way to find out the location of an object or a person. It relies on various means of multilateration of the signal from cell sites serving a mobile phone. The geographical position of the device is found out through various techniques like time difference of arrival (TDOA) or Enhanced Observed Time Difference (E-OTD).

Another example is Near LBS (NLBS), in which local-range technologies such as Bluetooth, WLAN, infrared and/or RFID technologies are used to match devices to nearby services. This application allows a person to access information based on their surroundings; especially suitable for using inside closed premises, restricted/ regional areas.

Another alternative is an operator- and GPS-independent location service based on access into the deep level telecoms network (SS7). This solution enables accurate and quick determination of geographical coordinates of mobile phone numbers by providing operator-independen t location data and works also for handsets that are not GPS-enabled.


Sunday, January 11, 2009

Cisco unveils media products at CES

Cisco Systems took its first big steps as a corporation into consumer digital media markets at the Consumer Electronics Show, claiming it would help ease the pain in managing home networks and Web services.

The company launched a home audio system and a media server from its expanded Linksys team. It also released business software from a new division that aims to simplify creating and running digital media services on the Web.

In many ways, the hardware products are similar to others from companies including Hewlett-Packard, NetGear, Sling Media, Sonus and others. Cisco execs claimed the products, available now, are significantly easier to install and use.


What's clear is Cisco's commitment to a corporate consumer thrust, leveraging a handful of acquisitions in the field including gateway maker Linksys.

"If you take away one thing from this event, know that we are really committed to the consumer market and we're putting the whole weight of the company behind it," said Cisco chief executive John Chambers at a CES press conference where the products were released.

In the process, Cisco has been beefing up the engineering ranks of its Linksys group, especially in software. The group now has design teams in Denmark, Switzerland, Irvine and San Jose.

"Linksys had an ODM model, but now a lot of the engineering has been brought in house particularly for the user experience," said Ned Hooper, senior vice president of corporate business development for Cisco who also acts as general manger of the company's new consumer group.

"I think it's less about the hardware than the software," said William Diehl, senior director of product management, research and UI design for the consumer group. "It's easy to do products, but it's hard to do easy products," said Diehl who joined Cisco two years ago when it was just starting to put together a team to design the products.

Specifically, Cisco rolled out a media storage hub that can hold two 2.5-inch drives of up to a terabyte each. The hub can automatically index and tag any media content on a home network.. It also lets users access their content remotely from the Web.

Microsoft has released software to drive similar systems linked to Windows. HP was the first to release a product based on the code about a year ago.

"We didn't want to pay the Microsoft tax," said one Cisco engineer.

Separately, the company released three products to play and distribute music around the home. A $299 player links a traditional stereo amplifier to a home net, a $499 director can act as a bookshelf stereo that sits on a home net and a $349 handheld controller manages the devices.

The Linux-based systems are available as a package today for $999. They use a Ralink 802.11g/n chip set and can link to any wired Ethernet link.

The devices use a distributed computing model for synchronizing content on systems on a home network, claiming it can handle such operations with a five microsecond latency to preserve audio fidelity.

The company plans to roll out a similar set of devices later this year for distributing video around the home over 802.11n. In addition, Cisco said it will license to other OEMs its Home Network Administration Protocol used by its new devices.

In tandem with the new hardware, Cisco's new media solutions group rolled out EOS, a software platform to manage how companies create and run online media and social networking services. The business software has no immediate links with the home products.

"There's no connection now but the goal is to make one," said Dan Scheinman, general manager of the group.

"Our ambition is wide for EOS," he added. "It should be the platform of record for media companies, enabling new media experiences and solving problems for media companies and consumers."

Top 15 Highest Paying Certifications in the Technology Industry

According to recent salary surveys by ZDNET's Tech Republic organization, the following are the highest paying certifications to have in the technology industry.

Following each certification is the average annual salary being paid to individual responders that hold the certification. I have also listed training resources to learn more information about how to acquire each of the highest paying certifications.

1. PMI Project Management Professional (PMP)

With an average annual salary of $101,695, the PMP certification from the Project Management Institute (PMI) organization tops the list of highest paying certifications for the current year.

2. PMI Certified Associate in Project Management (CAPM)

Next highest on the list of highest paying certifications is PMI's Certified Associate in Project Management (CAPM). The average annual salary for CAPM holders that were surveyed is $101,103.

3. ITIL v2 - Foundations

With an annual average salary of $95,415 the ITIL v2 Foundations certification came up third on the list of highest paying certifications. ITIL stands for the IT Infrastructure Library. The ITIL certification is designed to show expertise in ITIL service support and service delivery.

4. Certified Information Systems Security Professional (CISSP)

Coming in at a close 4th on the list of highest paying certifications is the Certified Information Systems Security Professional or CISSP certification from (ISC)2. The average annual reported salary was $94,018.

5. Cisco CCIE Routing and Switching

At $93,500 per year average annual salary, the Cisco CCIE Routing and Switching certification came in 5th on the list of highest paying certifications in the technology industry.

6. Cisco CCVP - Certified Voice Professional

Number six on the list of the highest paying certifications is the Cisco CCVP or Cisco Certified Voice Professional. The average annual salary of CCVP respondents was $88,824.

7. ITIL v3 - ITIL Master

The ITIL v3 certification - the ITIL Master - came in 7th on the list of the highest paying technical certifications. The average annual salary for ITIL Master certification holders was $86,600.

8. MCSD - Microsoft Certified Solution Developer

The MCSD or Microsoft Certified Solution Developer certification pays an average of $84,522. This puts the MCSD certification at number 8 on the list of highest paying certifications in technology.

9. Cisco CCNP - Cisco Certified Network Professional

Cisco Certified Network professional or CCNP certification is number 9 on the list of highest paying technical certifications. The average annual salary reported by CCNP holders is $84,161.

10. Red Hat Certified Engineer

The Red Hat Certified Engineer (RGCE) came in at number 10 on the list of highest paying certifications. The average annual salary reported by Red Hat Certified Engineers is $83,692.

11. MCITP - Microsoft Certified IT Professional (Enterpeise)

The MCIPT certification (Enterprise) , or Microsoft Certified IT Professional - Enterprise Support comes in at number 11 on the list of highest paying technical certifications. (The MCITP Database is number 14, see below). The average MCITP Enterprise salary reported was $82,941.

12. Cisco CCSP - Cisco Certified Security Professional

Coming in at number 12 on the list of the highest paying technical certifications is the Cisco CCSP or Cisco Certified Security Professional. The average annual salary reported by CCSP holders is $80,000.

13. MCAD - Microsoft Certified Applications Developer

With an average annual salary of $79,444, the MCAD certification, or Microsoft Certified Application Developer certification, is number 13 on the list of highest paying certifications in technology.

14. MCITP - Microsoft Certified IT Professional (Database)

The MCIPT certification (Database), or Microsoft Certified IT Professional - Database comes in at number 14 on the list of highest paying technical certifications. (The MCITP Enterprise Support is number 11, above). The average MCITP Database salary reported was $77,000.

15. MCDBA - Microsoft Certified Database Administrator

The Microsoft Certified Database Administrator, or MCDBA, comes in at number 15 on the list of highest paying technical certifications. The average annual salary reported by MCDBA respondents is $76,960.

Friday, January 9, 2009

Telecom equipment providers fully prepared for 3G

The issuing of long-awaited 3G licenses in China has sparked competition among telecom equipment providers. Both domestic and overseas competitors are fully prepared for this lucrative market.

Sweden-based Ericsson has been working on the development of WCDMA technology, one of the three standards for 3G technology. Three years ago, the company tapped into Chinese homegrown TD-SCDMA technology. It established an R&D center in order to better gain a market share.

Feng Yingduo, VP of Ericsson (Greater China), "hundreds of engineers at our company are well prepared to serve the three mobile operators who have gained 3G licenses. We are now bidding for contracts."

Telecom equipment providers have all invested heavily in the development of 3G technologies. Now that 3G licenses have been granted, they hope to get a return for that investment. Many domestic providers have been forced to focus on overseas markets. But now they are able to start with favorable resources at home.

Liu Peng, VP of ZTE, says, "our construction of all the three standards of 3G technology in the Chinese market will help us a lot in exploring global markets. We will compete in those markets with our hi-tech and high value added products."

The Chinese government sees the development of 3G networks as an important step in boosting domestic demand and optimizing telecom market competition.

In the next two years it's estimated direct investment in construction of 3G mobile networks will reach 280 billion yuan. And the network investment will lead to 2-trillion yuan in private-sector investment in two or three years.