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

Diamant, Roee and Casari, Paolo and Zorzi, Michele (2016) A TDMA-based MAC Protocol Exploiting the Near-Far Effect in Underwater Acoustic Networks. In: MTS/IEEE OCEANS 2016, 10-13 April 2016, Shanghai, China.

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Abstract

A prime source of collisions in underwater acoustic 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 on occurrences 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.

Item Type: Conference or Workshop Papers (Paper)
Uncontrolled Keywords: Underwater acoustic networks, near-far effect, spatial-reuse scheduling, time-division-multiple-access (TDMA), long propagation delay, optimization.
Subjects: UNSPECIFIED
Divisions: UNSPECIFIED
Depositing User: Paolo Casari
Date Deposited: 19 May 2016 10:17
Last Modified: 19 May 2016 10:17
URI: http://eprints.networks.imdea.org/id/eprint/1324

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