Journal ArticleDOI
Cache in the air: exploiting content caching and delivery techniques for 5G systems
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TLDR
A novel edge caching scheme based on the concept of content-centric networking or information-centric networks is proposed and evaluated, using trace-driven simulations to evaluate the performance of the proposed scheme and validate the various advantages of the utilization of caching content in 5G mobile networks.Abstract:
The demand for rich multimedia services over mobile networks has been soaring at a tremendous pace over recent years. However, due to the centralized architecture of current cellular networks, the wireless link capacity as well as the bandwidth of the radio access networks and the backhaul network cannot practically cope with the explosive growth in mobile traffic. Recently, we have observed the emergence of promising mobile content caching and delivery techniques, by which popular contents are cached in the intermediate servers (or middleboxes, gateways, or routers) so that demands from users for the same content can be accommodated easily without duplicate transmissions from remote servers; hence, redundant traffic can be significantly eliminated. In this article, we first study techniques related to caching in current mobile networks, and discuss potential techniques for caching in 5G mobile networks, including evolved packet core network caching and radio access network caching. A novel edge caching scheme based on the concept of content-centric networking or information-centric networking is proposed. Using trace-driven simulations, we evaluate the performance of the proposed scheme and validate the various advantages of the utilization of caching content in 5G mobile networks. Furthermore, we conclude the article by exploring new relevant opportunities and challenges.read more
Citations
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Journal ArticleDOI
Distributed Caching for Data Dissemination in the Downlink of Heterogeneous Networks
TL;DR: The proposed distributed BP algorithm has a near-optimal delay performance, approaching that of the high-complexity exhaustive search method; the modified BP offers a good delay performance at low communication complexity; both the average degree distribution and the outage upper bound analysis relying on stochastic geometry match well with the authors' Monte-Carlo simulations.
Journal ArticleDOI
Online Proactive Caching in Mobile Edge Computing Using Bidirectional Deep Recurrent Neural Network
TL;DR: This paper proposes an online proactive caching scheme based on bidirectional deep recurrent neural network (BRNN) model to predict time-series content requests and update edge caching accordingly and demonstrates that the proposed approach can achieve considerably high prediction accuracy and significantly improve content hit rate of end devices.
Journal ArticleDOI
Integration of Networking, Caching, and Computing in Wireless Systems: A Survey, Some Research Issues, and Challenges
TL;DR: A brief survey on some of the works that have been done to enable the integrated networking, caching, and computing system, and several research challenges remain to be addressed, including latency requirement, interfaces, mobility management, resource and architecture tradeoffs, convergence, etc.
Journal ArticleDOI
Coordinated Multi-Point Clustering Schemes: A Survey
TL;DR: The state-of-the-art on one of the key challenges of CoMP implementation: CoMP clustering is surveyed, including the need for CoMP, the clustering challenge for 5G wireless networks and a brief essential background about CoMP and the enabling network architectures.
Journal ArticleDOI
On Energy-Efficient Edge Caching in Heterogeneous Networks
TL;DR: The results show that the optimal placement of MDS-encoded content in caches at the wireless edge increases significantly the overall EE of the heterogeneous network, demonstrating the importance of the edge caching strategy for energy-efficient network designs.
References
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Device-to-device communication as an underlay to LTE-advanced networks
TL;DR: Device-to-device (D2D) communication underlaying a 3GPP LTE-Advanced cellular network is studied as an enabler of local services with limited interference impact on the primary cellular network.
Journal ArticleDOI
A survey of information-centric networking
TL;DR: This work compares and discusses design choices and features of proposed ICN architectures, focusing on the following main components: named data objects, naming and security, API, routing and transport, and caching.
Proceedings ArticleDOI
FemtoCaching: Wireless video content delivery through distributed caching helpers
Negin Golrezaei,Karthikeyan Shanmugam,Alexandros G. Dimakis,Andreas F. Molisch,Giuseppe Caire +4 more
TL;DR: The theoretical contribution of this paper lies in formalizing the distributed caching problem, showing that this problem is NP-hard, and presenting approximation algorithms that lie within a constant factor of the theoretical optimum.
Posted Content
FemtoCaching: Wireless Video Content Delivery through Distributed Caching Helpers
Karthikeyan Shanmugam,Negin Golrezaei,Alexandros G. Dimakis,Andreas F. Molisch,Giuseppe Caire +4 more
TL;DR: In this paper, the authors propose a system where helpers with low-rate backhaul but high storage capacity cache popular video files, and analyze the optimum way of assigning files to the helpers in order to minimize the expected downloading time for files.
Proceedings ArticleDOI
SoftCell: scalable and flexible cellular core network architecture
TL;DR: The presented SoftCell is a scalable architecture that supports fine-grained policies for mobile devices in cellular core networks, using commodity switches and servers, and enables operators to realize high-level service policies that direct traffic through sequences of middleboxes based on subscriber attributes and applications.