Book contents
- Frontmatter
- Contents
- List of Contributors
- Preface
- 1 Introduction
- Part I Optimal Cache Placement and Delivery
- 2 Coded Caching for Heterogeneous Wireless Networks
- 3 Wireless Device-to-Device Caching Networks
- 4 Cooperative Caching in Cloud-Assisted 5G Wireless Networks
- 5 Stochastic Caching Schemes in Large Wireless Networks
- 6 Joint Policies for Caching, Routing, and Channel Selection in Next-Generation Wireless Edge Systems
- Part II Proactive Caching
- Part III Cache-Aided Interference and Physical Layer Management
- Part IV Energy-Efficiency, Security, Economic, and Deployment
- Index
6 - Joint Policies for Caching, Routing, and Channel Selection in Next-Generation Wireless Edge Systems
from Part I - Optimal Cache Placement and Delivery
Published online by Cambridge University Press: 19 October 2020
- Frontmatter
- Contents
- List of Contributors
- Preface
- 1 Introduction
- Part I Optimal Cache Placement and Delivery
- 2 Coded Caching for Heterogeneous Wireless Networks
- 3 Wireless Device-to-Device Caching Networks
- 4 Cooperative Caching in Cloud-Assisted 5G Wireless Networks
- 5 Stochastic Caching Schemes in Large Wireless Networks
- 6 Joint Policies for Caching, Routing, and Channel Selection in Next-Generation Wireless Edge Systems
- Part II Proactive Caching
- Part III Cache-Aided Interference and Physical Layer Management
- Part IV Energy-Efficiency, Security, Economic, and Deployment
- Index
Summary
We consider joint caching, routing, and channel assignment for video delivery over coordinated small-cell cellular systems of the future internet. We formulate the problem of maximizing the throughput of the system as a linear program in which the number of variables is very large. To address channel interference, our formulation incorporates the conflict graph that arises when wireless links interfere with each other due to simultaneous transmission. We utilize the column generation method to solve the problem by breaking it into a restricted master subproblem that involves a select subset of variables and a collection of pricing subproblems that select the new variable to be introduced into the restricted master problem, if that leads to a better objective function value.
- Type
- Chapter
- Information
- Wireless Edge CachingModeling, Analysis, and Optimization, pp. 106 - 124Publisher: Cambridge University PressPrint publication year: 2021