Multi-hop Routing is Order-optimal in Underwater Extended Networks

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2010

Autores

Won-Yong Shin (Autor) Outra; Daniel E. Lucani (Autor) FEUP; Muriel Medard (Autor) FEUP; Milica Stojanovic (Autor) FEUP; Vahid Tarokh (Autor) Outra

Ata de Conferência Internacional

Título: IEEE International Symposium on Information Theory (ISIT 2010), Austin TX, June 2010

Páginas: 510-514

IEEE International Symposium on Information Theory (ISIT 2010), Austin TX, June 2010

Austin TX, JUL 13-13, 2010

Classificação Científica

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

Outras Informações

Resumo (PT): Capacity scaling laws are analyzed in an underwater acoustic network with n regularly located nodes. A narrow-band model is assumed where the carrier frequency is allowed to scale as a function of n. In the network, we characterize an attenuation parameter that depends on the frequency scaling as well as the transmission distance. A cut-set upper bound on the throughput scaling is then derived in extended networks. Our result indicates that the upper bound is inversely proportional to the attenuation parameter, thus resulting in a highly power-limited network. Furthermore, we describe an achievable scheme based on the simple nearest-neighbor multi-hop (MH) transmission. It is shown under extended networks that the MH scheme is order-optimal as the attenuation parameter scales exponentially with √n (or faster). Finally, these scaling results are extended to a random network realization.

Abstract (EN): Capacity scaling laws are analyzed in an underwater acoustic network with n regularly located nodes. A narrow-band model is assumed where the carrier frequency is allowed to scale as a function of n. In the network, we characterize an attenuation parameter that depends on the frequency scaling as well as the transmission distance. A cut-set upper bound on the throughput scaling is then derived in extended networks. Our result indicates that the upper bound is inversely proportional to the attenuation parameter, thus resulting in a highly power-limited network. Furthermore, we describe an achievable scheme based on the simple nearest-neighbor multi-hop (MH) transmission. It is shown under extended networks that the MH scheme is order-optimal as the attenuation parameter scales exponentially with √n (or faster). Finally, these scaling results are extended to a random network realization.

Idioma: Inglês

Tipo (Avaliação Docente): Científica