Título
Intermedia synchronization protocol for continuous media using MPEG-4 in mobile distributed systems
Autor
Eduardo López Domínguez
SAUL EDUARDO POMARES HERNANDEZ
María del Pilar Gómez Gil
JORGE DE LA CALLEJA MORA
ANTONIO BENITEZ RUIZ
ANTONIO MARIN HERNANDEZ
Nivel de Acceso
Acceso Abierto
Materias
Asymmetric - (ASYMMETRIC) Causal - (CAUSAL) Mobile distributed system - (MOBILE DISTRIBUTED SYSTEM) Synchronization mechanism - (SYNCHRONIZATION MECHANISM) CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA - (CTI) MATEMÁTICAS - (CTI) CIENCIA DE LOS ORDENADORES - (CTI) CIENCIA DE LOS ORDENADORES - (CTI)
Resumen o descripción
The preservation of temporal dependencies among a group of processes that exchange continuous media at runtime is a key issue for emerging mobile distributed systems (MDS), such as monitoring of biosignals and interactive multiuser games. Although several works are oriented to satisfy temporal dependencies, most of them are not suitable for MDSs. In general, an MDS is characterized by the absence of global references (e.g. shared memory and wall clock), host mobility, limited processing and storage capabilities in mobile hosts, and limited bandwidth on wireless communication channels. This paper proposes an asymmetric synchronization protocol to be used at runtime in an MDS without using a common reference. One main aspect of our synchronization protocol is that it translates temporal constraints to causal dependencies of the continuous media data as seen by the mobile hosts. We simulate the protocol by considering a cellular network environment and by using MPEG-4 encoders. The simulation results show that our protocol is effective in reducing the synchronization error. In addition, the protocol is efficient in terms of processing and storage costs at the mobile devices, as well as in the overhead attached per message across the wired and wireless channels.
Editor
KSII
Fecha de publicación
2012
Tipo de publicación
Artículo
Versión de la publicación
Versión aceptada
Recurso de información
Formato
application/pdf
Idioma
Inglés
Audiencia
Estudiantes
Investigadores
Público en general
Sugerencia de citación
Lopez-Dominguez, E., et al., (2012). Intermedia synchronization protocol for continuous media using MPEG-4 in mobile distributed systems, KSII Transactions on Internet and Information Systems, Vol. 6, (6): 1689-1706
Repositorio Orígen
Repositorio Institucional del INAOE
Descargas
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