Improved techniques for BER (Bit-Error-Rate) reduction at receivers are much needed in digital communications, in order to make it possible to transmit bit streams effectively at lower SNRs (Signal-to-Noise-Ratio) and for other advantages. This paper proposes and evaluates a new scheme for BER reduction applicable to a large class of correlated digital signals. Substantial improvements over cla...

Future telecommunications nodes will be predominantly mobile, bringing a new development of multimedia capabilities and performance service areas compared with the communications carried on fixed networks. In this paper there will be analyzed the performance of VoIP services in LTE networks, depending on the bandwidth of the channel, the method of modulation and coding schemes, by simulation of...

In this paper a discussion of the detailed operation of the interleavers used by the turbo codes defined on the telecommunications standards cdma2000 (3GPP2 C.S0024-B V2.0) and W-CDMA (3GPP TS 25.212 V7.4.0) is presented. Differences in the approach used by each turbo interleaver as well as dispersion analysis and frequency analysis are also discussed. Two examples are presented to illustrate t...

Abstract Telecommunications data are being explored by many countries as a new source of that can be incorporated into their national statistical systems. In particular, “mobile positioning data” increasingly used to study population movements and distributions. However, the legal, ethical, technical complexities working with this type often pose barriers, which prevent from at times when it is...

The article is devoted to the issue of organizing educational activities in conditions blended learning for future telecommunications specialists teaching disciplines “Switching and Information Distribution Systems” “Telecommunication Networks”. Due pandemic Russian invasion Ukraine, distance has become one leading trends education, providing continuous high-quality education. author analyzed e...

The theoretical foundations of Taguchi Methods were laid out by Genichi Taguchi, a Japanese engineer who began working for the telecommunications company, ECL (Electrical Communications Lab, a part of NT&T), in 1950’s. After World War II, his team was involved in the design of telephone system components, and successfully produced designs that performed better than their main rivals, Bell Labs,...

This paper presents a telephony solution for Local Multi-point Distribution Service (LMDS) using technology for Personal Communications Services (PCS). An actual system based on Digital Enhanced Cordless Telecommunications (DECT) has been implemented. The system architecture of the DECT-based LMDS telephony system is discussed. Performance measurement results show that a DECT-based system does ...

What a difference five years makes. In 2000, the Silicon Flatirons Telecommunications Program held its first conference on ‘‘Telecommunications Law for the Twenty First Century,’’ with my opening remarks and essay titled ‘‘Paradigm Changes In Telecommunications Regulation.’’1 That essay focused on the central themes of that conference, concluding with the observation that ‘‘Congress did not ful...

Zhengyu Li, Yichen Zhang, Christian Weedbrook, and Hong Guo1∗ State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Electronics Engineering and Computer Science, and Center for Quantum Information Technology, Peking University, Beijing 100871, China State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecomm...

the expanding technologies of the internet, telecommunications and computing have led to increasingly sophisticated and diverse methods of communication during the past decade. From simple textbased chat rooms to online virtual worlds, these new technologies present novel ways to interact with one’s peers and the public. the internet is not only influencing and changing the business model and f...