Int. J. of Wireless and Mobile Computing   »   2015 Vol.9, No.2

 

 

Title: Three-tier caching and replacement technique for peer-to-peer mobile web caching

 

Authors: Sami Qawasmeh; Arwa Zabian

 

Addresses:
Department of Computer Science, Jadara University, Irbid, Jordan
Department of Computer Science, Jadara University, Irbid, Jordan

 

Abstract: In Peer-to-Peer (P2P) systems, all devices are equal in functionality, communication and shared resources. Owing to rapid advancement in mobile wireless communication technology, P2P computing has been introduced into mobile and wireless network. The resources and bandwidths in such networks are scarce. Caching will help in reducing latency and conserve network resources. In this paper, a caching and replacement algorithm for mobile web caching system is proposed. In the proposed system, both client and server are mobile devices. The replacement policy is based on three parameters: size of the document, number of hops and number of references. For eviction, the document with high cost for keeping in the cache is evicted, which means large and less referenced documents are evicted and, if necessary, are retrieved from one hop only. The results show that our proposed algorithm outperforms the Least Recently Used (LRU) algorithm in terms of hit ratio.

 

Keywords: mobile web caching; replacement algorithm; hit ratio; energy saving; latency time; three-tier caching; peer-to-peer; P2P systems; document size; number of hops; number of references.

 

DOI: 10.1504/IJWMC.2015.072571

 

Int. J. of Wireless and Mobile Computing, 2015 Vol.9, No.2, pp.161 - 169

 

Date of acceptance: 13 Apr 2015
Available online: 19 Oct 2015

 

 

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