Retele De Telecomunicatii Tatiana Radulescu Pdf 181

ReÅele de telecomunicaÅii: A book by Tatiana RÄdulescu

ReÅele de telecomunicaÅii (Telecommunication Networks) is a book written by Tatiana RÄdulescu, an engineer and professor at the University of Bucharest, Romania. The book was published by Thalia in 2005 and has 501 pages. It covers various topics related to telecommunication networks, such as:

The principles and technologies of telecommunication services, such as voice, data, video, multimedia, and intelligent networks.

The architectures and protocols of telecommunication networks, such as circuit-switched, packet-switched, ATM, IP, MPLS, wireless, optical, and access networks.

The performance and quality of service issues of telecommunication networks, such as traffic analysis, congestion control, routing, switching, error control, security, and synchronization.

The standards and regulations of telecommunication networks, such as ITU-T, ETSI, IEEE, IETF, ISO, and FCC.

The book is intended for students, engineers, researchers, and practitioners who are interested in learning about telecommunication networks. It provides both theoretical and practical aspects of the subject, with examples, exercises, and case studies. The book is written in Romanian and uses the International System of Units (SI) for measurements.

ReÅele de telecomunicaÅii is available in PDF format from Scribd[^2^], a digital library that hosts millions of books, documents, and audiobooks. The PDF file has 258 pages and can be downloaded or viewed online for free. The file name is Retele de Telecomunicatii - Tatiana Radulescu.pdf and the file size is 181 MB.

ReÅele de telecomunicaÅii is a comprehensive and up-to-date book that covers the fundamentals and applications of telecommunication networks. It is a valuable resource for anyone who wants to learn more about this fascinating and dynamic field.

In the following sections, we will briefly introduce some of the main topics covered by ReÅele de telecomunicaÅii.

Telecommunication Services

Telecommunication services are the functions and features that are offered by telecommunication networks to their users. They can be classified into different categories, such as:

Basic services: These are the services that provide the basic functionality of telecommunication networks, such as voice communication, data transmission, and fax. They usually require a direct connection between the sender and the receiver, and have a fixed bandwidth and quality.

Supplementary services: These are the services that enhance or complement the basic services, such as call waiting, call forwarding, caller ID, and voice mail. They usually do not require a direct connection between the sender and the receiver, and can be activated or deactivated by the user.

Intelligent services: These are the services that use advanced features of telecommunication networks, such as databases, processing, and signaling. They can provide customized and personalized services to the user, such as prepaid cards, toll-free numbers, and virtual private networks.

Value-added services: These are the services that add value to the basic services by providing additional information or functionality. They can include services such as email, web browsing, video conferencing, and online gaming.

Multi-service networks: These are the networks that can support multiple types of services on a single platform. They can use different technologies and protocols to integrate voice, data, video, and multimedia services.

Telecommunication Networks

Telecommunication networks are the systems and devices that enable the transmission and reception of telecommunication signals. They can be classified into different categories, such as:

Circuit-switched networks: These are the networks that establish a dedicated path between the sender and the receiver for the duration of a communication session. They can guarantee a fixed bandwidth and quality for each session, but they can waste resources when there is no traffic. Examples of circuit-switched networks are public switched telephone networks (PSTN) and integrated services digital networks (ISDN).

Packet-switched networks: These are the networks that divide the data into small units called packets and send them over shared paths to their destination. They can optimize the use of resources by multiplexing multiple sessions on the same path, but they can introduce delays and losses due to congestion and errors. Examples of packet-switched networks are local area networks (LAN) and wide area networks (WAN).

ATM networks: These are the networks that use a specific type of packet-switching technology called asynchronous transfer mode (ATM). They can support multiple types of services with different quality of service (QoS) requirements by using fixed-length packets called cells and virtual circuits. Examples of ATM networks are broadband ISDN (B-ISDN) and ATM LAN.

IP networks: These are the networks that use a specific type of packet-switching technology called internet protocol (IP). They can interconnect different types of networks and devices by using variable-length packets called datagrams and logical addresses. Examples of IP networks are internet and intranet.

MPLS networks: These are the networks that use a specific type of packet-switching technology called multiprotocol label switching (MPLS). They can improve the performance and efficiency of IP networks by using fixed-length labels to route packets along predetermined paths. Examples of MPLS networks are MPLS VPN and MPLS TE.

Wireless networks: These are the networks that use electromagnetic waves to transmit and receive signals without wires or cables. They can provide mobility and flexibility to users by using radio frequency (RF), infrared (IR), or optical signals. Examples of wireless networks are cellular networks, satellite networks, wireless LAN, wireless MAN, wireless PAN, and wireless sensor networks.

Optical networks: These are the networks that use light waves to transmit and receive signals over optical fibers or free space. They can provide high bandwidth and low attenuation to users by using lasers or LEDs as sources and photodiodes as detectors. Examples of optical networks are fiber optic communication systems, optical LAN, optical MAN, optical access network aa16f39245