On the Relationship between Transmission Power and Capacity of an Underwater Acoustic Communication Channel

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2008

Autores

Daniel E. Lucani (Autor) FEUP; Milica Stojanovic (Autor) FEUP; Muriel Médard (Autor) FEUP

Ata de Conferência Internacional

Título: OCEANS 2008 - MTS/IEEE Kobe Techno-Ocean

Página Inicial: 1

OCEANS 2008 - MTS/IEEE Kobe Techno-Ocean

Kobe, Japan, 8-11 April 2008

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia electrotécnica, electrónica e informática

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia de comunicações > Engenharia de telecomunicações

Outras Informações

Resumo (PT): The underwater acoustic channel is characterized by a path loss that depends not only on the transmission distance, but also on the signal frequency. As a consequence, transmission bandwidth depends on the transmission distance, a feature that distinguishes an underwater acoustic system from a terrestrial radio system. The exact relationship between power, transmission band, distance and capacity for the Gaussian noise scenario is a complicated one. This work provides a closed-form approximate model for (1) power consumption, (2) band-edge frequency and (3) bandwidth as functions of distance and capacity required for a data link. This approximate model is obtained by numerical evaluation of analytical results which takes into account physical models of acoustic propagation loss and ambient noise. The closed-form approximations may become useful tools in the design and analysis of underwater acoustic networks.

Abstract (EN): The underwater acoustic channel is characterized by a path loss that depends not only on the transmission distance, but also on the signal frequency. As a consequence, transmission bandwidth depends on the transmission distance, a feature that distinguishes an underwater acoustic system from a terrestrial radio system. The exact relationship between power, transmission band, distance and capacity for the Gaussian noise scenario is a complicated one. This work provides a closed-form approximate model for (1) power consumption, (2) band-edge frequency and (3) bandwidth as functions of distance and capacity required for a data link. This approximate model is obtained by numerical evaluation of analytical results which takes into account physical models of acoustic propagation loss and ambient noise. The closed-form approximations may become useful tools in the design and analysis of underwater acoustic networks.

Idioma: Inglês

Tipo (Avaliação Docente): Científica