underwater acoustics

Marine mammals ecology and acoustics

Marine mammals ecology and acoustics

Within the Marine Ecology and Biology Lab, this research team is focused on marine mammals’ ecology, behaviour, acoustics and conservation, as well as on noise in the marine environment, and the impact of noise on marine mammals.

 

Competencies of the Group of Marine Ecology and Biology 

A simple frequency-domain negative acknowledgment feedback for automatic repeat on reQuest underwater acoustic networks

Bidirectional underwater acoustic communications usually request the transmission of some control information among nodes to govern the data flow. Control signaling, employed as frame reception validation, is also a peculiarity of the Automatic Repeat on reQuest (ARQ) schemes. An alternative solution to the error control problem is using forward error correction, even though high redundancy is needed to obtain the low error rate, hence leading to a sensible throughput reduction. Furthermore, no control on data integrity is allowed.

© Università degli Studi di Roma "La Sapienza" - Piazzale Aldo Moro 5, 00185 Roma