Idioma:

Scaling Behavior for Device-to-Device Communications With Distributed Caching

Golrezaei, Negin ; Dimakis, Alexandros G. ; Molisch, Andreas F.

IEEE transactions on information theory, 2014-07, Vol.60 (7), p.4286-4298 [Periódico revisado por pares]

New York, NY: IEEE

Texto completo disponível

Citações Citado por

Enviar para

Título:
Scaling Behavior for Device-to-Device Communications With Distributed Caching
Autor: Golrezaei, Negin ; Dimakis, Alexandros G. ; Molisch, Andreas F.
Assuntos: Ad hoc networks ; Applied sciences ; Asymptotic properties ; Base stations ; Behavior ; Caching ; Collaboration ; Detection, estimation, filtering, equalization, prediction ; Digital transmission ; Educational institutions ; Exact sciences and technology ; Exact solutions ; Exponents ; Information theory ; Information, signal and communications theory ; Interference ; Mathematical analysis ; Mathematical models ; Optimization ; Reuse ; Signal and communications theory ; Signal, noise ; Statistics ; Systems, networks and services of telecommunications ; Telecommunications ; Telecommunications and information theory ; Throughput ; Transmission and modulation (techniques and equipments) ; Wireless communication ; Wireless communications
É parte de: IEEE transactions on information theory, 2014-07, Vol.60 (7), p.4286-4298
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: We analyze a novel architecture for caching popular video content to enable wireless device-to-device (D2D) collaboration. We focus on the asymptotic scaling characteristics and show how they depend on video content popularity statistics. We identify a fundamental conflict between collaboration distance and interference and show how to optimize the transmission power to maximize frequency reuse. Our main result is a closed form expression of the optimal collaboration distance as a function of the model parameters. Under the common assumption of a Zipf distribution for content reuse, we show that if the Zipf exponent is greater than 1, it is possible to have a number of D2D interference-free collaboration pairs that scales linearly in the number of nodes. If the Zipf exponent is smaller than 1, we identify the best possible scaling in the number of D2D collaborating links. Surprisingly, a very simple distributed caching policy achieves the optimal scaling behavior.
Editor: New York, NY: IEEE
Idioma: Inglês

Links

View record in Pascal Francis

Voltar para lista de resultados

Realização: Logos de Redes Sociais:

Scaling Behavior for Device-to-Device Communications With Distributed Caching

Golrezaei, Negin ; Dimakis, Alexandros G. ; Molisch, Andreas F.

New York, NY: IEEE

Buscando em bases de dados remotas. Favor aguardar.