Vendeur : California Books, Miami, FL, Etats-Unis
EUR 19,96
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Ajouter au panierEtat : New.
Vendeur : Ria Christie Collections, Uxbridge, Royaume-Uni
EUR 18,87
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Ajouter au panierEtat : New. In.
Vendeur : moluna, Greven, Allemagne
EUR 24,03
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Ajouter au panierEtat : New. KlappentextrnrnThe United States Air Force relies heavily on computer networks for everyday operations. The medium access control (MAC) protocol currently used by most local area networks (LAN) permits a single station to access the network at a.
Langue: anglais
Edité par Creative Media Partners, LLC Okt 2012, 2012
ISBN 10 : 1249586461 ISBN 13 : 9781249586463
Vendeur : AHA-BUCH GmbH, Einbeck, Allemagne
EUR 46,50
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Ajouter au panierTaschenbuch. Etat : Neu. Neuware - The United States Air Force relies heavily on computer networks for everyday operations. The medium access control (MAC) protocol currently used by most local area networks (LAN) permits a single station to access the network at a time (e.g. CSMA/CD or Ethernet). This limits network throughput to, at most, the maximum transmission rate of a single node with overhead neglected. Significant delays are observed when a LAN is overloaded by multiple users attempting to access the common medium. In CSMA/CD, collisions are detected and the data sent by the nodes involved are delayed and retransmitted at a later time. The retransmission time is determined with a binary exponential back-of algorithm. Code Division Multiple Access (CDMA) is a technique that increases channel capacity by allowing multiple signals to occupy the same bandwidth simultaneously. Each signal is spread through multiplication with a unique pseudo-random code that distinguishes it from all other signals. Upon reception, the signal of interest is despread and separated from other incoming signals by multiplying it with the same exact code. With this technique, it is possible for multiple stations to transmit simultaneously with minimal ill effects.
Vendeur : Mispah books, Redhill, SURRE, Royaume-Uni
EUR 100,45
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Ajouter au panierPaperback. Etat : Like New. Like New. book.
Vendeur : THE SAINT BOOKSTORE, Southport, Royaume-Uni
EUR 20,91
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Ajouter au panierPaperback / softback. Etat : New. This item is printed on demand. New copy - Usually dispatched within 5-9 working days.