Inicio  /  Future Internet  /  Vol: 9 Par: 4 (2017)  /  Artículo
ARTÍCULO
TITULO

Request Expectation Index Based Cache Replacement Algorithm for Streaming Content Delivery over ICN

Haipeng Li    
Hidenori Nakazato and Syed Hassan Ahmed    

Resumen

Since the content delivery unit over Information-Centric Networking (ICN) has shifted from files to the segments of a file named chunks, solely either file-level or chunk-level request probability is insufficient for ICN cache management. In this paper, a Request Expectation Index (RXI) based cache replacement algorithm for streaming content delivery is proposed. In this algorithm, RXI is introduced to serve as a fine-grained and unified estimation criteria of possible future request probability for cached chunks. RXI is customized for streaming content delivery by adopting both file-level and chunk-level request probability and considering the dynamically varied request status at each route as well. Compared to prior work, the proposed algorithm evicts the chunk with the minimum expectation of future request to maintain a high cache utilization. Additionally, simulation results demonstrate that the RXI-based algorithm can remarkably enhance the streaming content delivery performance and can be deployed in complex network scenarios. The proposed results validate that, by taking fine-grained request probability and request status into consideration, the customized in-network caching algorithm can improve the ICN streaming content delivery performance by high cache utilization, fast content delivery, and lower network traffic.

PÁGINAS
pp. 0 - 0
MATERIAS
INFRAESTRUCTURA
REVISTAS SIMILARES
Future Internet

 Artículos similares

       
 
Mingshuang Jin, Hongbin Luo, Shuai Gao and Bohao Feng    
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 t... ver más
Revista: Future Internet

 
Marica Amadeo, Giuseppe Ruggeri, Claudia Campolo, Antonella Molinaro, Valeria Loscrí and Carlos T. Calafate    
By offering low-latency and context-aware services, fog computing will have a peculiar role in the deployment of Internet of Things (IoT) applications for smart environments. Unlike the conventional remote cloud, for which consolidated architectures and ... ver más
Revista: Future Internet

 
Kazuaki Okamoto and Kazumasa Takami    
In recent years, the interest in delay/disruption tolerant networking (DTN) is growing as a means of communication in times of disaster. To ensure that a DTN works well in an emergency, it is desirable to promote general use of the DTN, so that it will a... ver más
Revista: Future Internet