Uma arquitetura de computaÃÃo pervasiva para trabalho de campo




Fieldwork environments present diverse restrictions, such as a lack of infrastructure and the use of low capacity devices. Current work on ad hoc networks and pervasive computing do not consider some aspects that could bring improvements to these kinds of environments. This thesis describes an architecture composed of services and a routing protocol to support fieldwork requirements. The services have been projected to support different types of devices, with diverse mobility patterns. The routing data inside of the work area considers aspects of the types of the devices, indicating to the content adaptation service the types of nodes in the environment. The use of a physical localization information update strategy also reduces the load of data that is transmitted over the network. A routing protocol that uses physical localization information in diverse forms is presented; this information can generate work sub-areas, limiting the target of the messages that are passed through the net to workers of a physical sub-area of interest. The physical localization information also allows data exchange between different work areas, through the use of border nodes that control the edges of the work areas. The knowledge of neighboring areas allows routing by localization and the exchange of information between adjacent areas. These contributions can also be used by other pervasive computer systems that have an interest in improving their performance


pervasive computing context routing adaptaÃÃo de conteÃdo ciencia da computacao roteamento por contexto content adaptation computaÃÃo pervasiva localizaÃÃo fÃsica physical localization

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