Abstract
Telco content delivery networks (CDNs) have envisioned building highly distributed and cloudified sites to provide a high-quality CDN service in the 5G era. However, there are still two open problems to be addressed. First, telco CDNs are operated upon the underlay network evolving towards information-centric networking (ICN). Different from CDNs that perform on the application layer, ICN enables information-centric forwarding to the network layer. Thus, it is challenging to take advantage of the benefits of both ICN and CDN to provide a high-quality content delivery service in the context of ICN-based telco CDNs. Second, bandwidth pricing and request mapping issues in ICN-based telco CDNs have not been thoroughly studied. In this paper, we first propose an ICN-based telco CDN framework that integrates the information-centric forwarding enabled by ICN and the powerful edge caching enabled by telco CDNs. Then, we propose a location-dependent pricing (LDP) strategy, taking into consideration the congestion level of different sites. Furthermore, on the basis of LDP, we formulate a price-aware request mapping (PARM) problem, which can be solved by existing linear programming solvers. Finally, we conduct extensive simulations to evaluate the effectiveness of our design.
Highlights
Content delivery networks (CDNs) have become indispensable for data dissemination on the Internet
We propose a framework that consists of a location-dependent pricing (LDP) module, price-aware request mapping (PARM) module and status measurement (SM) modules
On the basis of the prices calculated in the previous part, we further evaluate the performance of the PARM design, compared with another two cases, i.e., BASE and PURM
Summary
Content delivery networks (CDNs) have become indispensable for data dissemination on the Internet. To address the above mentioned challenges, in this paper, we first propose a framework that integrates information-centric forwarding with a powerful caching service provided by telco CDNs, Future Internet 2019, 11, 125 enabling more cost-efficient ICN-based telco CDNs. we design a location-dependent pricing strategy (LDP) that considers the spatially heterogeneous features of traffic in geo-distributed telco CDN sites. Our design ensures that in both cases, the higher a site’s congestion level is, the higher its bandwidth price is This design of joint location dependent pricing and request mapping helps telco CDNs manage sites’ bandwidth more efficiently and to better match revenue to cost. The simulation results show that our design helps ICN-based telco CDNs flexibly price different CDN sites according to their congestion levels.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
