The NTC has contracted Chula UniSearch, a consulting arm of Chulalongkorn University (CU), led by Dr. Supavadee Aramvith and Dr. Chaodit Aswakul, to operate the project which is participated by CAT Telecom, Samart Telecom, AIS, NEC, Rohde&Schwarz, FORTH and ADC Communications. NGN technologies such as 3G, Wi-Max, VoIP, SIP server/Soft switch, VoD and FTTH are evaluated in the project along with...

Social Network Analysis (SNA) is a set of research procedures for identifying group of people who share common structures in systems based on the relations among actors. Grounded in graph and system theories, this approach has proven to be powerful measures for studying networks in various industries like Telecommunication, banking, physics and social world, including on the web. Since Telecomm...

Polarization entangled photon pair source is widely used in many quantum information processing applications such as teleportation, quantum communications, quantum computation and high precision quantum metrology. We report on the generation of a continuous-wave pumped 1550 nm polarization entangled photon pair source at telecom wavelength using a type-II periodically poled KTiOPO(4) (PPKTP) cr...

This paper discusses how the very rapid innovation in mobile platforms within a digital infrastructure challenges the traditional analysis of the revenue business model used by mobile telecom operators. The authors discuss how these mobile platforms have a more dynamic approach to digital innovation, hence they are able to shift business model strategies at a faster pace than telecom operators,...

In this paper, we consider high-speed wireless packet access using code division multiple access (CDMA) and multiple-input–multiple-output (MIMO). Current wireless standards, such as high speed packet access (HSPA), have adopted multi-code transmission and hybrid–automatic repeat request (ARQ) as major technologies for delivering high data rates. The key technique in hybrid–ARQ, is that erroneo...

In this paper, we consider high-speed wireless packet access using code division multiple access (CDMA) and multiple-input–multiple-output (MIMO). Current wireless standards, such as high speed packet access (HSPA), have adopted multi-code transmission and hybrid–automatic repeat request (ARQ) as major technologies for delivering high data rates. The key technique in hybrid–ARQ, is that erroneo...

Network theory is used for describing and analyzing the development of the Japanese mobile telecom industry. By using mainly organizational means, mobile operators in that industry have already started to accomplish what European operators expect new technologies will deliver and what they have paid so dearly for. The observed change is interpreted to mean that former industrial models of unbro...

Disk-based database systems are widely used, offering a great set of functionalities perfectly suited for most kinds of applications. However, when high performance is the priority, such databases are unable to produce satisfactory results. Telecom applications demand high performance especially for their real-time applications. Location management is one of many telecom applications that fall ...

More and more applications and functionalities have been introduced to smartphones, but smartphones have limited resources on computation and battery. To enhance the capacity of smartphones, an interesting idea is to use Cloud Computing and virtualization techniques to shift the workload from smartphones to a computational infrastructure. In this paper, we propose a new framework which keeps a ...

The parametric cost estimation approach has proved to be an efficient method for analyzing complex systems such as spacecraft, missiles, ships, buildings, etc where cost varies according to a number of parameters. The cost to provision a telecom network also depends on a number of parameters; but little research effort has been applied to estimate cost using this approach. In estimating the cos...