Principi Telekomunikacija Miroslav Dukic Pdf 18

If you need Principi telekomunikacija for study, here are legitimate options:

If your “18” refers to Chapter 18, the centerpiece is chromatic dispersion. Dukić explains that different wavelengths travel at slightly different speeds in silica glass. This causes pulse broadening, which limits the bit rate–distance product.

Key formula from Dukić’s Chapter 18:

[ \Delta T_\textchrom = D \cdot L \cdot \Delta \lambda ]

Where:

For standard single-mode fiber at 1550 nm, ( D \approx 17 ) ps/(nm·km). If your laser has ( \Delta \lambda = 0.1 ) nm and length ( L = 100 ) km, the spread is 170 ps. For a 10 Gb/s system (bit period = 100 ps), this spread would cause intersymbol interference unless compensated. principi telekomunikacija miroslav dukic pdf 18

Dukić then introduces dispersion-shifted fibers and dispersion compensation modules (DCMs). These practical sections explain why telecom engineers use specific fiber types for different network segments (metro vs. long-haul).

Title: Principi telekomunikacija Author: Prof. Dr. Miroslav Dukić Field: Telecommunications / Electrical Engineering

The book covers the physical and link layers of communication systems. It is typically used in the third or fourth year of an electrical engineering bachelor’s degree. The main topics include:

The book ends with a chapter on modern networks (often LTE/5G fundamentals in later editions).

To help you without the actual PDF, here is an in-depth explanation of two likely topics. If you need Principi telekomunikacija for study, here

As telecommunications shifts to AI-driven networks, 6G, quantum comms, and ultra-dense optical systems, Principi telekomunikacija will require new editions. Miroslav Dukić’s legacy, however, remains secure. The book is not just a collection of formulas; it teaches an engineering mindset: break down complex systems (like a mobile phone call) into modulations, encodings, multiple access, and propagation.

For today’s student, mastering Chapters 1 through 18 means you can understand how a fiber carries 800 Gb/s (using DWDM – dense wavelength division multiplexing) and how a 5G base station manages interference. Those fundamentals do not age.

Miroslav Dukić is a renowned Serbian author and professor in the field of telecommunications. He has taught generations of engineers at the University of Belgrade’s School of Electrical Engineering. His writing style is known for being mathematically rigorous yet accessible to undergraduate students. Besides Principi telekomunikacija, he has authored other important works, including Digital Telecommunications and Optical Telecommunications.

The first edition of Principi telekomunikacija appeared in the late 1990s, filling a gap in Serbian-language technical literature. Prior to that, students relied mostly on translated Soviet or English textbooks. Dukić’s work became the standard because it balanced theory with practical examples relevant to the region’s telecom infrastructure.

Dukić defines the energy of a continuous-time signal ( x(t) ) as: For standard single-mode fiber at 1550 nm, (

[ E = \int_-\infty^\infty |x(t)|^2 dt ]

For a signal to be an energy signal, this integral must be finite and non-zero. Power signals (like periodic signals) have infinite energy but finite average power:

[ P = \lim_T \to \infty \frac1T \int_-T/2^T/2 |x(t)|^2 dt ]

On page 18, you typically find a comparison table and an example: for a sine wave ( A \sin(2\pi f t) ), the average power is ( A^2 / 2 ), regardless of frequency.

Why this matters:
Telecommunications deals with signals traveling through noisy channels. Knowing signal power helps calculate the signal-to-noise ratio (SNR), which determines channel capacity via the Shannon formula:

[ C = B \log_2(1 + \textSNR) ]

Dukić’s early problems train students to compute SNR in dB, a skill used in link budget analysis for both wireless and fiber optics.