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A TDMA-based MAC Protocol Exploiting the Near-Far Effect in Underwater Acoustic Networks

One prime source of collisions in underwater acous-
tic communication networks (UWANs) is the so called near-far
effect, where a node located farther from the receiver is jammed
by a closer node. While common practice considers such situation
as a challenge, in this paper we consider it as a resource, and use
it to increase network throughput of spatial reuse time-division
multiple access. We propose a transmission allocation algorithm
that opportunistically utilizes information of near-far scenarios
in UWANs to maximize channel utilization. Numerical results
show that, at a slight cost in terms of fairness, our scheduling
solutions achieve higher throughput and lower transmission delay
than benchmark spatial-reuse scheduling protocols. To allow the
reproducibility of our results, we publish the implementation of
our proposed algorithm.

Authors:

Roee Diamant, Paolo Casari, Michele Zorzi

Published On:

IEEE MTS OCEANS ’16 Shanghai

Publication Year:

2016

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