3D routing with context awareness
AUTOR(ES)
Breno Jacinto Duarte da Costa
DATA DE PUBLICAÇÃO
2009
RESUMO
The emergence of low-cost, wireless network interfaces in the market and the ever increasing growth in demand of mobile devices (such as SmartPhones, PDAs, Internet Tablets and Laptops) enabled scenarios where network services for mobile users may exist in an ad hoc fashion, with no pre-existing communications infrastructure. However, the creation of such dynamic, heterogeneous networks is target of current research. Several researches in the field of wireless ad hoc networks has been focused in a single wireless technology, based on the IEEE 802.11 standard, where nodes are seen in a plain (2D) perspective, that is, as homogeneous elements identified only by IP addresses, not taking into consideration their hardware profiles and networking technologies. This way, researches involving multiple networking technologies are still in early stages. New approaches are necessary for these scenarios, increasingly more common, involving multiple devices with multiple network interfaces (multi-homed). This work proposes the 3D routing protocol, targeted towards scenarios where heterogeneity of devices and networking technologies is present. The aim of the 3D Routing protocol is to provide mechanisms for the seamless interoperation of these dynamic, heterogeneous ad hoc networks, considering another dimension of information, hereby defined as third dimension, consisting of aggregating more information, such as context information, hardware resources and network interfaces, to the routing process. Hence, the protocol considers the following fundamental aspects: the bootstrapping process of the network and nodes, the building and spreading of context awareness information between the nodes, and the assignment of roles to particular nodes. The evaluation of the protocol is made through experiments in a real test-bed, running a prototype implementation of the protocol, consisting of mobile devices such as OpenMoko Smartphones, Nokia N810 Internet Tablets and Laptops, with Bluetooth and 802.11 network interfaces, running embedded versions of the Linux operating system
ASSUNTO(S)
ad hoc networks redes ad hoc mÃveis seamless autoconfiguration redes heterogenÃas ciencia da computacao autoconfiguraÃÃo routing heterogeneous networks roteamento
