Buch, Englisch, 60 Seiten, Format (B × H): 154 mm x 236 mm, Gewicht: 1241 g
Energy-Saving and Cost-Aware Methods
Buch, Englisch, 60 Seiten, Format (B × H): 154 mm x 236 mm, Gewicht: 1241 g
Reihe: SpringerBriefs in Computer Science
ISBN: 978-981-10-6522-4
Verlag: Springer Nature Singapore
This book investigates the problem of reducing operating cost for a video streaming content delivery network (CDN), including both the CDN’s energy and traffic costs. It first introduces the key issues and design choices of representative real-world CDNs, and discusses the energy saving techniques for data centers and CDNs. Then, based on a measurement study on a large video streaming CDN, it reveals an inherent conflict between improving a video streaming CDN’s energy efficiency for energy saving, and maintaining the CDN’s ISP-friendly server selection policy. Further, it discusses a cost-aware capacity provisioning algorithm that not only allows the service capacity of a CDN’s server clusters in numerous ISPs to be dynamically planned, but also means that the overall operating cost, including both the energy consumptions and the cross-ISP traffics, can be further optimized. In addition it uses the workload derived from real-world measurement and also implements real values of theactual power and bandwidth prices to evaluate the capacity provisioning algorithm, showing that it can significantly reduce the overall operating cost of a video streaming CDN, and effectively avoid frequent server switches. Lastly, the book outlines a number of potential research directions regarding cost-aware content delivery. The measurement, analysis, and optimization methodologies and results presented in this book are of particular interest to researchers in the Internet and networking area.
Zielgruppe
Research
Autoren/Hrsg.
Fachgebiete
- Mathematik | Informatik EDV | Informatik Technische Informatik Hardware: Grundlagen und Allgemeines
- Technische Wissenschaften Elektronik | Nachrichtentechnik Nachrichten- und Kommunikationstechnik
- Mathematik | Informatik EDV | Informatik Computerkommunikation & -vernetzung
- Mathematik | Informatik EDV | Informatik Daten / Datenbanken
Weitere Infos & Material
Chapter 1 Introduction.- 1.1 Background.- 1.2 CDN Objectives.- 1.3 Challenges in CDN.- 1.4 Energy-saving and Cost-aware Content Delivery.- Chapter 2 Content Delivery Networks and Its Interplay with ISPs.- 2.1 CDNs in Real World.- 2.2 Interplay between CDN and ISP.- Chapter 3 Energy Management.- 3.1 Energy Saving for Data Center.- 3.2 Energy Saving for CDN.- Chapter 4 Cost Measurement for Internet Video Streaming.- 4.1 Measurement Methodology and CDN Architecture.- 4.2 Server Selection Policy Analysis.- 4.3 Energy-aware Capacity Provisioning.- 4.4 Implication and Motivation.- Chapter 5 Capacity Provisioning for Video Content Delivery.- 5.1 Problem Statement.- 5.2 Capacity Provisioning Algorithm.- Chapter 6 Performance Evaluation.- 6.1 Experiment Setup.- 6.2 Evaluation and Comparison.- Chapter 7 Concluding Remarks.