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A Proxy-Based Collaboration System to Minimize Content Download Time and Energy Consumption

Authors
Jang, InsunPark, GwangwooSuh, DongeunPack, SangheonDan, Gyorgy
Issue Date
8월-2017
Publisher
IEEE COMPUTER SOC
Keywords
Mobile collaborative community; content download; proxy-based collaboration system; alpha-local search of sharing order (alpha-LSSO)
Citation
IEEE TRANSACTIONS ON MOBILE COMPUTING, v.16, no.8, pp.2105 - 2117
Indexed
SCIE
SCOPUS
Journal Title
IEEE TRANSACTIONS ON MOBILE COMPUTING
Volume
16
Number
8
Start Page
2105
End Page
2117
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/82741
DOI
10.1109/TMC.2016.2616871
ISSN
1536-1233
Abstract
Mobile collaborative community (MCC) is an emerging technology that allows multiple mobile nodes (MNs) to perform a resource intensive task, such as large content download, in a cooperative manner. In this paper, we introduce a proxy-based collaboration system for the MCC where a content proxy (CProxy) determines the amount of chunks and the sharing order scheduled to each MN, and the received chunks are shared among MNs via Wi-Fi Direct. We formulate a multi-objective optimization problem to minimize both the collaborative content download time and the energy consumption in an MCC, and propose a heuristic algorithm for solving the optimization problem. Extensive simulations are carried out to evaluate the effects of the number of MNs, the wireless bandwidth, the content size, and dynamic channel conditions on the content download time and the energy consumption. Our results demonstrate that the proposed algorithm can achieve near-optimal performance and significantly reduce the content download time and has an energy consumption comparable to that of other algorithms.
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Pack, Sang heon
공과대학 (전기전자공학부)
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