NDLI: A multi-channel MAC protocol for underwater acoustic networks

Content Provider	IEEE Xplore Digital Library
Author	Gao, Mingsheng Jian Li Wei Li Zhixiang Deng
Copyright Year	2015
Description	Author affiliation: College of IoT Engineering, Hohai University, China 213022 (Gao, Mingsheng; Jian Li; Wei Li; Zhixiang Deng)
Abstract	In underwater acoustic networks (UANs), the “hidden terminal” and “exposed terminal” problems greatly restrict their capacity due to the characteristics of the underwater acoustic channel, such as very limited bandwidth, time-varying multipath propagation, and large propagation delay. However, it is still possible to achieve reasonably good performance if we smartly leverage large propagation delay. In this paper, we propose a multi-channel MAC protocol for UANs (called UA-MCMA). UA-MCMA divides the available channel into a control channel and several traffic channels, each of which will be uniquely used by one node within its single-hop scope. Unlike conventional handshaking-based schemes that tend to suffer from low throughput and high transmission delay in UANs due to the long propagation delay, the UA-MCMA combats this problem by allowing a sender to start transmitting data packets on its traffic channel periodically after it has sent a request-to-send frame on the control channel, without waiting for the clear-to-send frame from the receiver. By doing so, some data can be transmitted during the channel reservation period, which notably improves the performance of UANs. Simulation results confirm its good performance in terms of throughput and average packet delay.
Starting Page	293
Ending Page	298
File Size	307094
Page Count	6
File Format	PDF
e-ISBN	9781467381864
DOI	10.1109/CAMAD.2015.7390527
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-09-07
Publisher Place	United Kingdom
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Throughput Acoustics Delays
Content Type	Text
Resource Type	Article

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