volume 51

20160506-full
Issue 5-6, 2016

ELECTROTECHNICA & ELECTRONICA E+E

Twelfth International Conference on Electron Beam Technologies – EBT 2016, 13-18 June, Varna, Bulgaria

Vol. 51. No 5-6/2016
Monthly scientific and technical journal
Published by:
The Union of Electronics, Electrical Engineering and Telecommunications /CEEC/, BULGARIA

20160506-full

C O N T E N T S

Special issue: Scientific papers from 12-th International Conference on Electron Beam Technologies – EBT ...  read more

20160304-full
Issue 3-4, 2016

ELECTROTECHNICA & ELECTRONICA E+E

Vol. 51. No 3-4/2016
Monthly scientific and technical journal
Published by:
The Union of Electronics, Electrical Engineering and Telecommunications /CEEC/, BULGARIA

20160304-full

C O N T E N T S

ELECTRONICS

Gergana I. Vacheva, Nikolay L. Hinov
 ...  read more

20160102-full
Issue 1-2, 2016

ELECTROTECHNICA & ELECTRONICA E+E

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

20160102-full

C O N T E N T S

TELECOMMUNICATIONS SCIENCE

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

Seferin ...  read more

20160102-07
Performance investigation of deep and ultra-deep submicron CMOS transistors in analog circuit design
Emil D. Manolov

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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 ...  read more

20160102-06
Investigation and design of high-speed transimpedance amplifier circuits using CFOAs
Ivailo M. Pandiev

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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 ...  read more

20160102-05
Dimensioning and evaluation of the radio frequency spectrum
Georgi K. Petrov, Boncho H. Balabanov

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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 ...  read more

20160102-04
Practical implementation of algorithms for error-correction and combating ISI in a DSP-based QAM modulator
Emil E. Vladkov

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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 ...  read more

20160102-03
Aspects of autonomous M2M device management
Ivaylo I. Atanasov

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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 ...  read more

20160102-02
Internet Erlang formula: survey on relation between demand, capacity and performance in IP network
Seferin T. Mirtchev

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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 ...  read more

20160102-01
Applications of spectral graph theory in the field of telecommunications
Mircho J. Mirchev

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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 ...  read more