Energy-Efficient Channel Coding Strategy for Underwater Acoustic Networks

Sensors

Richard D. Souza¹  Bruno S. Chang²  Daniel H. Simão²  Glauber Brante²  Edgard Jamhour³  Grasielli Barreto³  Manoel C. Penna³  Marcelo E. Pellenz³ 

[1] Department of Electrical Engineering, Federal University of Santa Catarina, Santa Catarina 88040-900, Florianópolis, Brazil;Graduate Program in Electrical and Computer Engineering (CPGEI), Federal University of Technology, Paraná 80230-901, Curitiba, Brazil;Postgraduate Program in Computer Science (PPGIa), Pontifical Catholic University of Parana, Paraná 80215-901, Curitiba, Brazil;

关键词: underwater acoustic networks;    forward error correction codes;    fountain codes;    energy efficiency;   

DOI  :  10.3390/s17040728

来源: DOAJ

【 摘 要 】

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 a K-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.

【 授权许可】

Unknown