NDLI: Data Caching Based on Improved DGA in Ad Hoc Networks

Content Provider	IEEE Xplore Digital Library
Author	Hongbin Song Xiaoqiang Xiao Ming Xu Lei Lin
Copyright Year	2009
Abstract	Data caching is an important technique in wireless ad hoc networks, where it can increase data availability and significantly improve the efficiency of information access by reducing the access latency and bandwidth usage. However, designing efficient caching algorithms is non-trivial when network nodes have limited memory. After analyzing the benefit function of DGA (Distributed Greedy Algorithm) (by Tang [6]), an improved DGA algorithm (IDGA) is proposed and the factor of data access frequency is investigated to get better performance in this paper. The data access frequency is divided into two parts, which are local access frequency and other node access frequency, and then different weights are assigned to them respectively. Thus, data caching can be implemented based on different network application. The simulation results using the network simulator NS2 show that, compared with DGA, our algorithm is more applicable, and different benefit functions can be chosen for various applications to get lower latency and higher availability.
Starting Page	562
Ending Page	565
File Size	271340
Page Count	4
File Format	PDF
ISBN	9780769539294
e-ISBN	9781424454211
DOI	10.1109/DASC.2009.96
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-12-12
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Base stations Dissolved gas analysis ad hoc Frequency conversion data caching algorithm Ad hoc networks NS2 Delay Vehicles Mobile ad hoc networks Layout Bandwidth IDGA Computer networks data access frequency
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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