title: Energy-Efficient Channel Coding Strategy for Underwater Acoustic Networks.
abstract: Underwater acoustic networks (UAN) allow for efficiently exploiting and monitoring the sub-aquatic environment. These networks are characterized by long propagation delays, error-prone channels and half-duplex communication. In this paper, we address the problem of energy-efficient communication through the use of optimized channel coding parameters. We consider a two-layer encoding scheme employing forward error correction (FEC) codes and fountain codes (FC) for UAN scenarios without feedback channels. We model and evaluate the energy consumption of different channel coding schemes for aK-distributed multipath channel. The parameters of the FEC encoding layer are optimized by selecting the optimal error correction capability and the code block size. The results show the best parameter choice as a function of the link distance and received signal-to-noise ratio.
authors.affiliation: Postgraduate Program in Computer Science (PPGIa), Pontifical Catholic University of Parana, Paraná 80215-901, Curitiba, Brazil. grasibarreto@gmail.com.
authors.forename: Grasielli
authors.initials: G
authors.lastname: Barreto
authors.affiliation: Graduate Program in Electrical and Computer Engineering (CPGEI), Federal University of Technology, Paraná 80230-901, Curitiba, Brazil. hayashidadaniel@gmail.com.
authors.forename: Daniel H
authors.initials: DH
authors.lastname: Simão
authors.affiliation: Postgraduate Program in Computer Science (PPGIa), Pontifical Catholic University of Parana, Paraná 80215-901, Curitiba, Brazil. marcelo@ppgia.pucpr.br.
authors.forename: Marcelo E
authors.initials: ME
authors.lastname: Pellenz
authors.affiliation: Department of Electrical Engineering, Federal University of Santa Catarina, Santa Catarina 88040-900, Florianópolis, Brazil. richard.demo@ufsc.br.
authors.forename: Richard D
authors.initials: RD
authors.lastname: Souza
authors.affiliation: Postgraduate Program in Computer Science (PPGIa), Pontifical Catholic University of Parana, Paraná 80215-901, Curitiba, Brazil. ejamhour@gmail.com.
authors.forename: Edgard
authors.initials: E
authors.lastname: Jamhour
authors.affiliation: Postgraduate Program in Computer Science (PPGIa), Pontifical Catholic University of Parana, Paraná 80215-901, Curitiba, Brazil. penna@ppgia.pucpr.br.
authors.forename: Manoel C
authors.initials: MC
authors.lastname: Penna
authors.affiliation: Graduate Program in Electrical and Computer Engineering (CPGEI), Federal University of Technology, Paraná 80230-901, Curitiba, Brazil. gbrante@utfpr.edu.br.
authors.forename: Glauber
authors.initials: G
authors.lastname: Brante
authors.affiliation: Graduate Program in Electrical and Computer Engineering (CPGEI), Federal University of Technology, Paraná 80230-901, Curitiba, Brazil. bschang@utfpr.edu.br.
authors.forename: Bruno S
authors.initials: BS
authors.lastname: Chang
keywords: energy efficiency; forward error correction codes; fountain codes; underwater acoustic networks