Volume 51, Issue 1-2, 2016

Issue 1-2, 2016


Vol. 51. No 1-2/2016
Monthly scientific and technical journal
Published by:
The Union of Electronics, Electrical Engineering and Telecommunications /CEEC/, BULGARIA




Mircho J. Mirchev
Applications of spectral graph theory in the field of telecommunications 2

Seferin ...  read more

Performance investigation of deep and ultra-deep submicron CMOS transistors in analog circuit design

The article discusses the procedure for examination the performance of deep and ultra-deep submicron CMOS transistors with application in analog integrated circuit design. The study is illustrated by using BSIM4 model of 45nm bulk CMOS ...  read more

Investigation and design of high-speed transimpedance amplifier circuits using CFOAs

The paper presents the structure and principle of operation of the basic transimpedance amplifier (TIA) circuits. In particular, high-speed (with bandwidth >1MHz) inverting and non-inverting circuits, employing current-feedback operational ...  read more

Dimensioning and evaluation of the radio frequency spectrum

Radio frequency spectrum is assumed as valuable resource in many articles and discussions. The Radio Frequency Spectrum (RFS) resource value is necessary to obtain comparison of communications systems efficiency. This resource has three ...  read more

Practical implementation of algorithms for error-correction and combating ISI in a DSP-based QAM modulator

A communication system build upon contemporary digital modulation principles on a DSP-based hardware platform where most of the tasks are performed in software through signal processing algorithms can easily accommodate existing and ...  read more

Aspects of autonomous M2M device management

Device management is a challenging task in Machine-to-Machine (M2M) communications. The increased number of connected devices and device diversity calls for device management that reduces the deployment time and operational costs. Open ...  read more

Internet Erlang formula: survey on relation between demand, capacity and performance in IP network

The internet traffic is the result of interaction among millions of users, hundreds of heterogeneous applications, and dozens of sophisticated protocols. The internet traffic is much more complex than the telephone traffic and the mix ...  read more

Applications of spectral graph theory in the field of telecommunications

The quick expansion of the networks worldwide, leads to number of question regarding their topology. In the initial planning and further optimizations the network topology is a key factor. The dynamic routing protocols give the ability ...  read more