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Optimal Scheduling and Fair Service Policy for STDMA in Underwater Networks with Acoustic Communications
Miguel-Angel Luque-Nieto1, José-Miguel Moreno-Roldán2, Pablo Otero3
1Department of Ingeniería de Comunicaciones, University of Málaga. luquen@uma.es.
Abstract:
In this work, a multi-hop string network with a single sink node is analyzed. A periodic optimal scheduling for TDMA operation that considers the characteristic long propagation delay of the underwater acoustic channel is presented. This planning of transmissions is obtained with the help of a new geometrical method based on a 2D lattice in the space-time domain. In order to evaluate the performance of this optimal scheduling, two service policies have been compared: FIFO and Round-Robin. Simulation results, including achievable throughput, packet delay, and queue length, are shown. The network fairness has also been quantified with the Gini index.
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