The public telephone networks
Telephone networks are known as public telephone networks. They consist of : Trunk exchange . Local exchange . And lines between them . T...
Tampilkan postingan dengan label Communications. Tampilkan semua postingan
Tampilkan postingan dengan label Communications. Tampilkan semua postingan
Sabtu, 19 Juli 2014
Sabtu, 04 Februari 2012
INTRODUCTION TO RF PLANNING 2
TOOLS USED FOR RF PLANNING : • Network Planning Tool • CW Propagation Tool • Traffic Modeling Tool • Project Management Tool Network Plannin...
Senin, 26 Desember 2011
INTRODUCTION TO RF PLANNING 1
• Designing a cellular system - particularly one that incorporates both Macrocellular and Microcellular networks is a delicate balanci...
Selasa, 13 September 2011
Introduction to Antenna
An antenna is an electrical conductor or system of conductors * Transmission - radiates electromagnetic energy into space ...
Selasa, 03 Mei 2011
Wireless Ad hoc Networks
Wireless ad hoc networks have special characteristics related to node mobility, node self-configuration and the lack of centralized access...
Minggu, 03 April 2011
SS7 Basics
SS7 Protocol : The primary signaling protocol in use today is signaling systems 7(SS7), which interconnects networks such as SSP, SCP ....
Jumat, 21 Januari 2011
PE license and exams
The PE exam tests your ability to practice competently in a particular engineering discipline. It is designed for engineers who have gained...
Selasa, 18 Januari 2011
Introduction to 802.11 Standard
IEEE 802.11 standard specifies a 2.4 GHz operating frequency with data rates of 1 and 2 Mbps using either Direct Sequence Spread Spectr...
Minggu, 16 Januari 2011
Basic commands and syntax in MATLAB
We will speak about Basic commands and syntax in MATLAB to show how we can write code in it . If you type in a valid expression and ...
Intro to MATLAB
MATLAB is a software package for computation in engineering, science, and applied mathematics. It offers a powerful programming languag...
Rabu, 12 Januari 2011
What's OFDM-MIMO ?
Multiple Input Multiple Output (MIMO) One building block for next-generation wireless access, MIMO (multiple-input, multiple-output),...
OFDM Advantages and Disadvantages
The major advantage of OFDM is its robustness against multi path propagation. Thus, it is suitable to be implemented in wireless environ...
Orthogonal Frequency Division Multiplexing (OFDM)
O rthogonal F requency D ivision M ultiplexing ( OFDM ) is a multicarrier modulation technique. OFDM provides high bandwidth efficienc...
Minggu, 09 Januari 2011
Turbo-Decoder
The turbo code decoder is an iterative Maximum A posteriori (MAP) algorithm. MAP algorithms use a Bayesian analysis of the channel t...
Turbo-Encoder
Turbo code encoders are a concatenation of systematic encoders referred to as constituent codes. (Systematic encoders pass both uncod...
What's the Turbo-code ?
Turbo coding is a forward error correction (FEC) scheme. Iterative decoding is the key feature of turbo codes. Turbo codes consist...
Jumat, 31 Desember 2010
Hello everybody
Hello , My name is mahmoud . A communications engineer .I'd like to share all things that i know with you .This blog will discuss all th...
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