The need for underwater reliable connections requested to provide different services as sea monitoring, devices control and camera images/videos may lead to require also large rate values. Due to the very limited bandwidth achieving few Khz, space diversity techniques can aid in this twofold mission. In this paper we investigate the use of an underwater acoustic MIMO technique, and jointly adopt the Pulse Position Modulation (PPM), in order to improve the data rates without reducing the reliability of the link. PPM is known to be power efficient modulation format while it is bandwidth inefficient so the use of MIMO can compensate that drawback with reasonable complexity. The performance has been evaluated on the basis of signal recordings for what concerns interference. © 2014 IEEE.
Trace-orthogonal pulse position modulation space time block coding for underwater links / Biagi, Mauro; Rinauro, Stefano; Colonnese, Stefania; Pergoloni, Stefano; Scarano, Gaetano; Cusani, Roberto. - (2014), pp. 1-5. (Intervento presentato al convegno Oceans - St. John's, 2014 tenutosi a St. John's; Canada) [10.1109/OCEANS.2014.7003193].
Trace-orthogonal pulse position modulation space time block coding for underwater links
BIAGI, MAURO;RINAURO, STEFANO;COLONNESE, Stefania;PERGOLONI, STEFANO;SCARANO, Gaetano;CUSANI, Roberto
2014
Abstract
The need for underwater reliable connections requested to provide different services as sea monitoring, devices control and camera images/videos may lead to require also large rate values. Due to the very limited bandwidth achieving few Khz, space diversity techniques can aid in this twofold mission. In this paper we investigate the use of an underwater acoustic MIMO technique, and jointly adopt the Pulse Position Modulation (PPM), in order to improve the data rates without reducing the reliability of the link. PPM is known to be power efficient modulation format while it is bandwidth inefficient so the use of MIMO can compensate that drawback with reasonable complexity. The performance has been evaluated on the basis of signal recordings for what concerns interference. © 2014 IEEE.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
