NDLI: A hybrid medium access control protocol for underwater wireless networks

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A hybrid medium access control protocol for underwater wireless networks

Content Provider	ACM Digital Library
Author	Mohapatra, Prasant Kredo, Kurtis B.
Abstract	Underwater networks allow investigation of many areas of the world not easily accessed by humans, but offer interesting challenges to device and protocol designers due to the unique channel conditions present when using acoustic communications. The high transmit power of acoustic transceivers makes the medium access protocol a primary focus point for reducing energy consumption in energy limited underwater devices. Scheduled protocols use very little power by eliminating collisions, but cannot adapt to changing traffic conditions in the same way as random protocols. We attempt to bridge these two ideas by dividing time into scheduled and unscheduled access periods in order to yield the benefits of each protocol. We show that this technique increases the bits delivered per energy unit in many cases of interest. Additionally, the hybrid technique provides low latency for a wider range of traffic rates than either of the two protocols when considered individually. We also investigate some of the design tradeoffs to consider when using a hybrid protocol.
Starting Page	33
Ending Page	40
Page Count	8
File Format	PDF
ISBN	9781595937360
DOI	10.1145/1287812.1287821
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2007-09-14
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Medium access control Underwater acoustic networks
Content Type	Text
Resource Type	Article

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