Bibliothèque de L'IMIST/CNRST

Votre panier est vide.
IMIST


Votre recherche a retourné 4 résultats.

Distributed cooperative laboratories : networking, instrumentation, and measurements.   Publication : [S.l.] : Springer, 2006 . 548 p. ; , Distributed Cooperative Laboratories: Networking, Instrumentation, and Measurements is devoted to the investigation of the main issues related to the sustainable realization of tele-laboratories, where real and virtual instrumentation can be shared and used in a collaborative environment. This is a highly interdisciplinary topic, where various aspects converge: multimedia communications and networking, sensor networks, Grid technology, Quality of Service (QoS) provisioning and control, network management, measurement instrumentation and methodology, architecture of measurement systems. The book contains peer reviewed chapters organized into six parts: Technologies for Real-Time Interactive Multimedia Communications; Monitoring, Management and Configuration of Networks and Networking Devices; Data Acquisition and Aggregation in Sensor Networks; Grid Structures for Distributed Cooperative Laboratories; Architectures and Techniques for Tele-Measurements; and Virtual Immersive Communications and Distance Learning. Each chapter presents a self-contained treatment, within a framework that provides the reader with an up-to-date picture of the state-of-the-art and of the most recent developments of this multi-faceted topic. 24 cm. Date : 2006 Disponibilité : Exemplaires disponibles: La bibliothèque des sciences de l'ingénieur (1),

Réserver Ajouter au panier
Mobile ad hoc networks : energy-efficient real-time data communications / par Tavli, Bulent. Publication : [S.l.] : Springer, 2006 . 265 p. ; , A Mobile Ad Hoc Network (MANET) is an autonomous system of mobile nodes connected by wireless links to form a communication network. The challenge in the design of protocol architectures for MANETs is to provide a certain level of Quality of Service (QoS) in information transfer using the limited network resources, namely energy and bandwidth. This design goal is further constrained by the unreliable physical channel, the mobility of the nodes, and the lack of infrastructure for network coordination. To meet the QoS requirements for real-time data communication, some coordination of the channel is needed, but centralized coordination is not feasible in MANETs. Furthermore, since a MANET is a dynamic, distributed entity, the optimal control of such a system should also be dynamic and adaptive. This book presents the Time Reservation using Adaptive Control for Energy Efficiency (TRACE) family of protocol architectures that provide such dynamic coordinated channel access in a distributed manner, enabling energy-efficient, real-time data communications in MANETs. Furthermore, this book provides an introduction to the fundamentals of MANETs, an overview of protocols for each layer of the protocol stack, and a discussion of the issues involved with energy-efficient protocol design and quality of service for real-time data transmission. 25 cm. Date : 2006 Disponibilité : Exemplaires disponibles: La bibliothèque des sciences de l'ingénieur (1),

Réserver Ajouter au panier
Orthogonal frequency division multiplexing for wireless communications.   Publication : [S.l.] : Springer, 2006 . 308 p. ; , Orthogonal Frequency Division Multiplexing for Wireless Communications is an edited volume with contributions by leading authorities in the subject of OFDM. Its coverage consists of principles, important wireless topics (e.g. Synchronization, channel estimation, etc.) and techniques. Included is information for advancing wireless communication in a multipath environment with an emphasis on implementation of OFDM in base stations. Orthogonal Frequency Division Multiplexing for Wireless Communications provides a comprehensive introduction of the theory and practice of OFDM. Chapter 1, by G. Stþber, briefly introduces the history of OFDM or multicarrier modulation and basic concepts of OFDM, Chapter 2, by Y. (G.) Li, presents design of OFDM systems for wireless communications, various impairments caused by wireless channels, and some other types of OFDM related modulation. Chapter 3 to Chapter 6 address different techniques to mitigate the impairments and to improve the performance of OFDM systems. Chapter 3, by J. Cioffi and L. Hoo, focuses on system optimization techniques, including channel partitioning, loading of parallel channels, and optimization through coding. Chapter 4, by S. Wilson and P. ḍling, addresses timing- and frequency-offset estimation in OFDM systems. It also briefly discusses sampling clock offset estimation and correction. Chapter 5, by Y. (G.) Li, deals with pilot aided and decision-directed channel estimation for OFDM systems. Chapter 6, by C. Tellambura and M. Friese, discusses various techniques to reduce the peak-to-average power ratio of OFDM signals. To facilitate the readers, extensive subject indices and references are given at the end of the book. Even though each chapter is written by different experts, symbols and notations in all chapters of the book are consistent. 24 cm. Date : 2006 Disponibilité : Exemplaires disponibles: La bibliothèque des sciences de l'ingénieur (1),

Réserver Ajouter au panier
Video traces for network performance evaluation : a comprehensive overview and guide on video traces and their utilization in networking research / par Seeling, Patrick. Publication : [S.l.] : Springer, 2006 . 274 p. ; , Multimedia networking, especially the delivery video over the Internet, accounts for a large fraction of todayЀ™s and future computer networks. Working with actual video provides several challenges on different technical and social levels. Video traces - a representation of video data and video quality in textual format - present a different approach to facilitate studies with video traffic. Video Traces for Network Performance Evaluation provides a comprehensive introduction to video traces and their use in networking research. After first providing the basics of digital video and video coding, video traces are introduced, covering the metrics captured in the traces, the trace generation, as well as the statistical characteristics of the video characterized in the traces. Attention is then turned to the use of the video traces in networking research, examining the practical aspects of transporting video over Internet Protocol (IP) networks and the simulation of video transport using traces, including the simulations that incorporate the impact of transmission errors using offset distortion traces. Software tools and utilities that facilitate the use of video traces in network simulations and other video networking related software tools are also presented. 24 cm. Date : 2006 Disponibilité : Exemplaires disponibles: La bibliothèque des sciences de l'ingénieur (1),

Réserver Ajouter au panier
Vous ne trouvez pas ce que vous cherchez ?
© Tous droits résérvés IMIST/CNRST
Angle Av. Allal Al Fassi et Av. des FAR, Hay Ryad, BP 8027, 10102 Rabat, Maroc
Tél:(+212) 05 37.56.98.00
CNRST / IMIST

Propulsé par Koha