Citation

Ahmad, Nazrul Muhaimin and Tan, Kim Geok (2007) Enhanced client polling with multilevel pre-fetching algorithm for wireless networks. Journal of Communications and Networks, 9 (1). pp. 43-49. ISSN 1229-2370

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Abstract

The implementation of client polling as a weak cache coherence mechanism has two major drawbacks: Firstly, the cache may return a stale copy if the object is changed in the origin server while the cached copy is considered valid. Secondly, the cache can invalidate at cached copy that is still valid in the server. Therefore, we propose a multilevel pre-fetching (MLP) in conjunction with the client polling to refine these drawbacks. MLP is introduced to improve the level of freshness among the cached objects. The simulation results presented in this paper show that the proposed MLP significantly minimizes the number of stale objects and reduces the invalidation messages sent out to the server, i.e., increase the cache HIT rate.

Item Type:	Article
Subjects:	T Technology > T Technology (General) Q Science > QA Mathematics > QA71-90 Instruments and machines > QA75.5-76.95 Electronic computers. Computer science
Divisions:	Faculty of Engineering and Technology (FET) Faculty of Information Science and Technology (FIST)
Depositing User:	Ms Suzilawati Abu Samah
Date Deposited:	18 Oct 2011 07:03
Last Modified:	27 Apr 2015 08:07
URII:	http://shdl.mmu.edu.my/id/eprint/3105

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