Collaborative caching priority for processing requests in MANETs

Accessing distant sources in MANETs leads to poor performance and sometimes impossible due to regular disconnection of mobile hosts. Several approaches have been proposed to improve data accessibility and reduce delay in serving requests. These approaches adopted the collaborative caching techniques...

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Main Authors: Elfaki, Mohamed Ahmed, Ibrahim, Hamidah, Mamat, Ali, Othman, Mohamed, Safa, Haidar
Format: Article
Language:English
Published: Elsevier 2014
Online Access:http://psasir.upm.edu.my/id/eprint/36807/
http://psasir.upm.edu.my/id/eprint/36807/1/Collaborative%20caching%20priority%20for%20processing%20requests%20in%20MANETs.pdf
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author Elfaki, Mohamed Ahmed
Ibrahim, Hamidah
Mamat, Ali
Othman, Mohamed
Safa, Haidar
author_facet Elfaki, Mohamed Ahmed
Ibrahim, Hamidah
Mamat, Ali
Othman, Mohamed
Safa, Haidar
author_sort Elfaki, Mohamed Ahmed
building UPM Institutional Repository
collection Online Access
description Accessing distant sources in MANETs leads to poor performance and sometimes impossible due to regular disconnection of mobile hosts. Several approaches have been proposed to improve data accessibility and reduce delay in serving requests. These approaches adopted the collaborative caching techniques, enabling various mobile hosts to cache and share data items in their local caches. However, processing requests based on their classification have not been tackled in previous works to reduce the average delay. In this paper, we propose a collaborative caching priority approach, which serves requests based on their classifications either priority or normal. This is to ensure that priority requests are served with minimum cache discovery overhead and with less delay in fetching data items that are cached in MANETs. The experimental results show that the proposed approach improved the performance of collaborative caching and outperformed the cooperative and adaptive system (COACS), with a decrement of 30.42% in average delay and an increment of 21.26% in hit ratio.
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spelling upm-368072015-09-08T03:54:12Z http://psasir.upm.edu.my/id/eprint/36807/ Collaborative caching priority for processing requests in MANETs Elfaki, Mohamed Ahmed Ibrahim, Hamidah Mamat, Ali Othman, Mohamed Safa, Haidar Accessing distant sources in MANETs leads to poor performance and sometimes impossible due to regular disconnection of mobile hosts. Several approaches have been proposed to improve data accessibility and reduce delay in serving requests. These approaches adopted the collaborative caching techniques, enabling various mobile hosts to cache and share data items in their local caches. However, processing requests based on their classification have not been tackled in previous works to reduce the average delay. In this paper, we propose a collaborative caching priority approach, which serves requests based on their classifications either priority or normal. This is to ensure that priority requests are served with minimum cache discovery overhead and with less delay in fetching data items that are cached in MANETs. The experimental results show that the proposed approach improved the performance of collaborative caching and outperformed the cooperative and adaptive system (COACS), with a decrement of 30.42% in average delay and an increment of 21.26% in hit ratio. Elsevier 2014-04 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/36807/1/Collaborative%20caching%20priority%20for%20processing%20requests%20in%20MANETs.pdf Elfaki, Mohamed Ahmed and Ibrahim, Hamidah and Mamat, Ali and Othman, Mohamed and Safa, Haidar (2014) Collaborative caching priority for processing requests in MANETs. Journal of Network and Computer Applications, 40. pp. 85-96. ISSN 1084-8045 10.1016/j.jnca.2013.08.013
spellingShingle Elfaki, Mohamed Ahmed
Ibrahim, Hamidah
Mamat, Ali
Othman, Mohamed
Safa, Haidar
Collaborative caching priority for processing requests in MANETs
title Collaborative caching priority for processing requests in MANETs
title_full Collaborative caching priority for processing requests in MANETs
title_fullStr Collaborative caching priority for processing requests in MANETs
title_full_unstemmed Collaborative caching priority for processing requests in MANETs
title_short Collaborative caching priority for processing requests in MANETs
title_sort collaborative caching priority for processing requests in manets
url http://psasir.upm.edu.my/id/eprint/36807/
http://psasir.upm.edu.my/id/eprint/36807/
http://psasir.upm.edu.my/id/eprint/36807/1/Collaborative%20caching%20priority%20for%20processing%20requests%20in%20MANETs.pdf