A semi-reliable energy-efficient retransmission mechanism based on the sensing relevancies of source nodes for wireless image sensor networks

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2012

Autores

Daniel G. Costa (Autor) Outra; Luiz Affonso Guedes (Autor) Outra; Francisco Vasques (Autor) FEUP; Paulo Portugal (Autor) FEUP; Odilson T. Valle (Autor) Outra

Ata de Conferência Internacional

Título: Proceedings of the International Symposium on Wireless Communication Systems

Páginas: 506-510

2012 9th International Symposium on Wireless Communication Systems, ISWCS 2012

Paris, 28 August 2012 through 31 August 2012

Indexação

Scopus - 7 Citações

INSPEC

Classificação Científica

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

Outras Informações

ID Authenticus: P-008-83K

DOI: 10.1109/iswcs.2012.6328419

Abstract (EN): Whenever reliable transmissions are assured by retransmission mechanisms, higher packet error incur in additional energy consumption due to packet retransmissions, even though many monitoring applications can tolerate some loss in the quality of the received images. In fact, visual information retrieved from source nodes may have different relevancies for the applications, according to the desired monitoring tasks and the current sensors' poses and fields of view. We propose a semi-reliable energy-efficient hop-by-hop retransmission mechanism, where the reliability level of each packet is function of the relevance of the source nodes associated with DWT subbands. Doing so, some of the corrupted packets will not be retransmitted, saving energy of intermediate nodes with low impact to the visual monitoring quality. © 2012 IEEE.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 5