Optimal Scheduling and Fair Service Policy for STDMA in Underwater Networks with Acoustic Communications

Autor:	Miguel-Ángel Luque-Nieto, José-Miguel Moreno-Roldán, Pablo Otero, Javier Poncela
Jazyk:	angličtina
Rok vydání:	2018
Předmět:	optimal scheduling time-division multiple access Gini index string network underwater sensor networks Chemical technology TP1-1185
Zdroj:	Sensors, Vol 18, Iss 2, p 612 (2018)
Druh dokumentu:	article
ISSN:	1424-8220
DOI:	10.3390/s18020612
Popis:	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.
Databáze:	Directory of Open Access Journals
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