NDLI: Distributed cooperative diversity method for P2P file sharing over wireless ad hoc network

Content Provider	IEEE Xplore Digital Library
Author	Youyun Xu Dapeng Li
Copyright Year	2008
Description	Author affiliation: Sch. of Electron., Inf. & Electr. Eng., ShangHai JiaoTong Univ., Shanghai (Youyun Xu; Dapeng Li)
Abstract	In wireless ad hoc networks, if we design the cooperative diversity method during download process to utilize the wireless medium and common files source, the file download performance would be improved significantly. In this paper, we propose novel protocols, opportunistic downloading protocol (ODP) and opportunistic DF broadcast downloading protocol(ODFBP). Our new protocols could adaptively work in different file distribution scenarios. ODP corresponds to single requesting peer, it first select the source with the best channel condition from M available local neighbor source file peers and then requests the file data from the selected source. We introduce a distributed CDF based mu-law time expire source choice method where each source peers only have the knowledge of local instantaneous channel gain. While ODFBP work in dual requesting peers scenario, it includes our distributed common source choice algorithm and DF (decode and forward) protocols for cooperative broadcast channels. And the information theoretic analysis of outage probability shows that the ODFBP schemes can obtain M(the number of the file source) times diversity-multiplex tradeoff gain.
Starting Page	509
Ending Page	515
File Size	2032634
Page Count	7
File Format	PDF
ISBN	9781424423736
DOI	10.1109/CHINACOM.2008.4685077
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-08-25
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Protocols Peer to peer computing Diversity methods Routing wireless networks Decoding Network cooperative diversity Mobile ad hoc networks Information analysis Design engineering outage probability peer to peer Programmable logic arrays Broadcasting file sharing
Content Type	Text
Resource Type	Article

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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
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