In the past two decades, sigma-delta ( Σ∆ ) analog-to-digital converters are well suited for and widely used in instrumentation, voice and audio applications, featuring low-frequency and high-resolution. The reason behind this is because high resolution of sigma-delta ( Σ∆ ) architecture is obtained through trading off speed of modern CMOS (or BiCMOS) technology for high accuracy. With the cont...

To meet rapidly growing demands for various telecommunication services such as high speed internet, wireless multimedia, and mobile computing, substantial research efforts have been made on the development of advanced communication systems. One of the major goals in such a development is to design efficient signal processing and coding schemes to achieve highly reliable and spectral-efficient t...

The traditional system of industry report is highly influenced by the speed of Internet and has low efficiency on report. In order to solve these problems, this paper studies J2EE and AJAX technologies, combine them and propose an industry report system which based on J2EE and AJAX technologies. The system which makes full advantages of both technologies, has solved the problems such as easily ...

A large number of sensors and intelligent devices are interconnected via the internet to collect data as part things (IoT) applications. Data security is one important challenges for these applications due vulnerability internet. IoT limiting factors, such delay-sensitivity, restricted memory, low computing capability, make choosing appropriate encryption standard extremely important. The curre...

Digital Video Broadcasting (DVB) provides the opportunity for high-speed Internet delivery direct to user’s homes and offices. Most applications require full duplex communication, and the return path from the user to the Internet will be provided using lower speed terrestrial connections. Two challenges are presented when using DVB for high-speed Internet access: the poor performance of TCP ove...

The use of MP3 as a compression codec for Internet Telephony has become feasible in view of the latest developments in PC hardware and broadband Internet capacity. In this context, this paper examines the implementation details behind such an Internet telephone, measuring delay in the end hosts. A new approach to detecting and correcting audio skew is proposed and implemented, focusing on the a...

This work presents HSTCP-LP (High-Speed TCP Low Priority), a high-speed TCP stack whose goal is to utilize only the excess network bitrate (bandwidth) as compared to the “fair-share” of bitrate as targeted by other TCP variants. By giving a strict priority to all non-HSTCP-LP cross-traffic flows, HSTCP-LP enables a simple two-class prioritization without any support from the network. It enables...

With the rapid development of the internet, the amount of information and data which are produced, are extremely massive. Hence, client will be confused with huge amount of data, and it is difficult to understand which ones are useful. Data mining can overcome this problem. While data mining is using on cloud computing, it is reducing time of processing, energy usage and costs. As the speed of ...