Fundamental Latency Limits for D2D-Aided Content Delivery in Fog Wireless Networks

01/02/2018
by   Roy Karasik, et al.
0

Device-to-Device (D2D) communication can support the operation of cellular systems by reducing the traffic in the network infrastructure. In this paper, the benefits of D2D communication are investigated in the context of a Fog-Radio Access Network (F-RAN) that leverages edge caching and fronthaul connectivity for the purpose of content delivery. Assuming offline caching, out-of-band D2D communication, and an F-RAN with two edge nodes and two user equipments, an information-theoretically optimal caching and delivery strategy is presented that minimizes the delivery time in the high signal-to-noise ratio regime. The delivery time accounts for the latency caused by fronthaul, downlink, and D2D transmissions. The proposed optimal strategy is based on a novel scheme for an X-channel with receiver cooperation. Insights are provided on the regimes in which D2D communication is beneficial.

READ FULL TEXT

page 1

page 2

page 3

page 4

research
12/18/2019

Information-Theoretic Analysis of D2D-Aided Pipelined Content Delivery in Fog-RAN

In a Fog-Radio Access Network (F-RAN), edge caching and fronthaul connec...
research
05/09/2019

Fog-Aided Device to Device Networks with Opportunistic Content Delivery

In this paper, we investigate the caching placement and content delivery...
research
10/07/2021

A novel approach for MBSFN Area Formation aided by D2D Communications for eMBB Service Delivery in 5G NR Systems

Forthcoming 5G New Radio (NR) systems will be asked to handle a huge num...
research
02/19/2018

Caching-Aided Collaborative D2D Operation for Predictive Data Dissemination in Industrial IoT

Industrial automation deployments constitute challenging environments wh...
research
04/02/2019

How Much Can D2D Communication Reduce Content Delivery Latency in Fog Networks with Edge Caching?

A Fog-Radio Access Network (F-RAN) is studied in which cache-enabled Edg...
research
05/14/2019

D2D Assisted Beamforming for Coded Caching

Device-to-device (D2D) aided beamforming for coded caching is considered...
research
04/13/2021

Joint Secure Design of Downlink and D2D Cooperation Strategies for Multi-User Systems

This work studies the role of inter-user device-to-device (D2D) cooperat...

Please sign up or login with your details

Forgot password? Click here to reset