Inicio > > Redes y comunicaciones informáticas > Acesso multiusuário em WLANs de alta eficiência
Acesso multiusuário em WLANs de alta eficiência

Acesso multiusuário em WLANs de alta eficiência

Mohand YAZID / Saloua BRAHMI

89,45 €
IVA incluido
Disponible
Editorial:
KS OmniScriptum Publishing
Año de edición:
2025
Materia
Redes y comunicaciones informáticas
ISBN:
9786206817581
89,45 €
IVA incluido
Disponible

Selecciona una librería:

  • Librería Samer Atenea
  • Librería Aciertas (Toledo)
  • Kálamo Books
  • Librería Perelló (Valencia)
  • Librería Elías (Asturias)
  • Donde los libros
  • Librería Kolima (Madrid)
  • Librería Proteo (Málaga)
Sobre IBD

Para promover as comunicações MU (Multi-Utilizador) em WLANs de elevada eficiência, a nova norma IEEE 802.11ax introduziu o conceito de RU (Resource Unit) através da técnica de transmissão OFDMA. Embora as comunicações OFDMA MU permitam servir vários utilizadores ao mesmo tempo nas direcções DL (Down-Link) e UL (Up-Link), há ainda vários desafios a enfrentar para conceber um protocolo MAC (Medium Access Control) que atribua de forma justa e utilize eficazmente as RUs. Os desafios a enfrentar são os seguintes (1) definir quando e como utilizar os quadros de controle 802.11ax, (2) estabelecer uma política de envio justo das necessidades UL, (3) adotar uma estratégia para selecionar uma estrutura de canal, e (4) evitar perda de eficiência espetral e timeout BA (Block Acknowledgment). Nesta tese, propusemos o protocolo FAEU-RUs (Fair Allocation and Effective Utilization of RUs), respondendo a cada um dos desafios das comunicações OFMDA MU. A avaliação de desempenho demonstra que o protocolo FAEU-RUs melhora significativamente o desempenho global da rede, mas também o desempenho individual de cada tipo de tráfego (DL e UL) e de cada categoria de estação.

Artículos relacionados

  • Next Generation Search Engines
    Recent technological progress in computer science, Web technologies, and the constantly evolving information available on the Internet has drastically changed the landscape of search and access to information. Current search engines employ advanced techniques involving machine learning, social networks, and semantic analysis. Next Generation Search Engines: Advanced Models for ...
  • Collaboration and the Semantic Web
    Collaborative working has been increasingly viewed as a good practice for organizations to achieve efficiency. Organizations that work well in collaboration may have access to new sources of funding, deliver new, improved, and more integrated services, make savings on shared costs, and exchange knowledge, information and expertise. Collaboration and the Semantic Web: Social Net...
  • Resource Allocation in Next-Generation Broadband Wireless Access Networks
    With the growing popularity of wireless networks in recent years, the need to increase network capacity and efficiency has become more prominent in society. This has led to the development and implementation of heterogeneous networks. Resource Allocation in Next-Generation Broadband Wireless Access Networks is a comprehensive reference source for the latest scholarly research o...
  • Advanced Topics in Information Technology Standards and Standardization Research, Volume 1
    Kai Jakobs
    ...
  • Data Warehouses and OLAP
    ...
  • Selected Readings on Database Technologies and Applications
    Terry Halpin
    Education and research in the field of database technology can prove problematic without the proper resources and tools on the most relevant issues, trends, and advancements. Selected Readings on Database Technologies and Applications supplements course instruction and student research with quality chapters focused on key issues concerning the development, design, and analysis ...

Otros libros del autor

  • Multi-User-Zugang in hocheffizienten WLANs
    Mohand YAZID / Saloua BRAHMI
    Um die MU-Kommunikation (Multi-User) in hocheffizienten WLANs zu fördern, hat der neue IEEE 802.11ax-Standard das Konzept der RU (Resource Unit) mit Hilfe der OFDMA-Übertragungstechnik eingeführt. Obwohl die OFDMA-MU-Kommunikation es ermöglicht, mehrere Benutzer gleichzeitig sowohl in DL- (Down-Link) als auch in UL-Richtung (Up-Link) zu bedienen, müssen noch mehrere Herausforde...
    Disponible

    89,45 €

  • Dostęp wielu użytkowników w wysokowydajnych sieciach WLAN
    Mohand YAZID / Saloua BRAHMI
    Aby promować komunikację MU (Multi-User) w wysokowydajnych sieciach WLAN, nowy standard IEEE 802.11ax wprowadził koncepcję RU (Resource Unit) za pomocą techniki transmisji OFDMA. Chociaż komunikacja MU OFDMA umożliwia jednoczesną obsługę wielu użytkowników zarówno w kierunku DL (Down-Link), jak i UL (Up-Link), pozostaje kilka wyzwań, którym należy sprostać, aby zaprojektować pr...
    Disponible

    89,38 €

  • Accesso multiutente in reti WLAN ad alta efficienza
    Mohand YAZID / Saloua BRAHMI
    Per promuovere le comunicazioni MU (Multi-User) nelle WLAN ad alta efficienza, il nuovo standard IEEE 802.11ax ha introdotto il concetto di RU (Resource Unit) mediante la tecnica di trasmissione OFDMA. Sebbene le comunicazioni OFDMA MU consentano di servire più utenti contemporaneamente sia in direzione DL (Down-Link) che UL (Up-Link), restano da affrontare diverse sfide per pr...
    Disponible

    89,45 €

  • Accès multi-utilisateurs dans les réseaux WLAN à haut débit
    Mohand YAZID / Saloua BRAHMI
    Pour promouvoir les communications MU (multi-utilisateurs) dans les réseaux locaux sans fil à haute efficacité, la nouvelle norme IEEE 802.11ax a introduit le concept d’unité de ressources (RU) au moyen de la technique de transmission OFDMA. Bien que les communications OFDMA MU permettent de desservir plusieurs utilisateurs en même temps dans les directions DL (Down-Link) et UL...
    Disponible

    89,45 €