Book contents
- Frontmatter
- Contents
- List of Contributors
- Part I Overview
- Part II Physical Layer Design
- Part III Resource Allocation and Network Management
- 9 Delay and Traffic Matching in Ultra-dense Networks
- 10 Traffic Offloading in Software Defined Ultra-dense Networks
- 11 Resource Allocation in Ultra-dense Networks
- 12 Wireless Edge Caching in Ultra-dense Networks
- 13 User Association in Ultra-dense Networks
- 14 UAV-Based Ultra-dense Networks
- 15 Generalized Low-Rank Optimization for Ultra-dense Fog-RANs
- Part IV Field Trials and Tests
- Index
12 - Wireless Edge Caching in Ultra-dense Networks
from Part III - Resource Allocation and Network Management
Published online by Cambridge University Press: 12 October 2020
- Frontmatter
- Contents
- List of Contributors
- Part I Overview
- Part II Physical Layer Design
- Part III Resource Allocation and Network Management
- 9 Delay and Traffic Matching in Ultra-dense Networks
- 10 Traffic Offloading in Software Defined Ultra-dense Networks
- 11 Resource Allocation in Ultra-dense Networks
- 12 Wireless Edge Caching in Ultra-dense Networks
- 13 User Association in Ultra-dense Networks
- 14 UAV-Based Ultra-dense Networks
- 15 Generalized Low-Rank Optimization for Ultra-dense Fog-RANs
- Part IV Field Trials and Tests
- Index
Summary
The wireless edge caching is considered as a promising technique to cope with rapid increase in mobile traffic demand. The fundamental idea of edge caching is to offload the data traffic to local cache memories by dealing with content requests with the pre-fetched contents on network edge nodes. The wireless edge caching consists of two main phases: content placement and content delivery. Since the strategies for these two phases are highly dependent on which devices are capable of caching in the network, the characteristics and types of achievable caching gains appear to vary with the location of cached data. The cached data at the transmitter side can be utilized to reduce the traffic load on backhaul and the latency, while the cached data at the receiver side can be utilized to improve the network resource efficiency and the quality of experience (QoE) of the end-users. This chapter introduces the state-of-the-art wireless edge caching techniques for transmitters and receivers of ultra dense networks and offers a design guideline on reaping the promising gain of wireless edge caching.
Keywords
- Type
- Chapter
- Information
- Ultra-dense NetworksPrinciples and Applications, pp. 209 - 238Publisher: Cambridge University PressPrint publication year: 2020