NDLI: An efficient data aggregation algorithm in delay tolerant vehicular networks

Content Provider	IEEE Xplore Digital Library
Author	Qingwen Zhao Yanmin Zhu
Copyright Year	2014
Description	Author affiliation: Dept. of Comput. Sci. & Eng., Shanghai Jiao Tong Univ., Shanghai, China (Qingwen Zhao; Yanmin Zhu)
Abstract	We are interested in delay-constrained data aggregation in delay tolerant vehicular networks, in which contact opportunities are usually scarce and thus become critical resources. Data aggregation has been recognized as an effective technique for reducing communication cost while obtaining useful aggregated information. The unique characteristics of the network present great challenges to the delay-constrained aggregation issue. First, there is no always-connected path from a source node to a destination node. Second, there is an intrinsic tradeoff between communication cost and aggregation quality. In this paper we discuss the delay-constrained data aggregation problem in delay tolerant vehicular networks with the objective of maximizing the amount of information collected, which has not been well studied in the literature. We observe that there are heterogeneity and regularity with node contact patterns. Motivated by this observation, we propose an Efficient tree-based Data Aggregation algorithm called EDA. EDA first constructs a data aggregation tree based on the shortest path tree, and then assigns a waiting time budget to each node on the tree using a dynamic programming algorithm. We have performed extensive simulations on real taxi traces and results show that our EDA scheme incurs much lower transmission overhead while achieving the same performance compared with other schemes.
Starting Page	118
Ending Page	123
File Size	7498721
Page Count	6
File Format	PDF
ISBN	9781479920037
DOI	10.1109/ICC.2014.6883305
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-06-10
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Delays Vehicles Resource management Algorithm design and analysis Ad hoc networks Heuristic algorithms Data models
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
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