NDLI: A cooperative ARQ scheme for multi-hop underwater acoustic sensor networks

Content Provider	IEEE Xplore Digital Library
Author	Jae Won Lee Ho-Shin Cho
Copyright Year	2011
Description	Author affiliation: School of Electronics Engineering College of IT Engineering, Kyungpook National University, Daegu, Korea (Jae Won Lee; Ho-Shin Cho)
Abstract	We propose an efficient cooperative ARQ (Automatic Repeat request) scheme for multi-hop underwater acoustic communications, in which cooperative nodes are used to provide more reliable alternative paths for a specific source-relay-destination connection. Based on the knowledge of inter-node distances, a cooperative region is defined to include all possible candidates for cooperative nodes from a given pair of source-relay-destination nodes. When the relay (destination) node receives an erroneous packet, it asks for retransmission from a cooperative node, which is selected in a closest-one-first manner from the nodes in the cooperative region. The selection procedure continues until the retransmission is successful. In addition, during a packet-relay through multiple hops, the typical acknowledgement (ACK) signal is replaced with overhearing data packet returned back from the next hop. In this paper, we evaluate the proposed scheme by comparing it with a conventional S&W ARQ in terms of throughput efficiency. Computer simulation results show that the proposed cooperative retransmission scheme can significantly improve the throughput by increasing the probability of successful retransmission.
Starting Page	1
Ending Page	4
File Size	322365
Page Count	4
File Format	PDF
ISBN	9781457701658
e-ISBN	9781457701641
DOI	10.1109/UT.2011.5774130
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-04-05
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Automatic repeat request Relays Throughput Underwater acoustics Bit error rate Protocols
Content Type	Text
Resource Type	Article

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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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