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In order to make full use of geographic routing techniques developed for large scale networks, nodes must be localized. However, localization and virtual localization techniques in sensor networks are dependent either on expensive and sometimes unavailable hardware (e.g. GPS) or on sophisticated localization calculus (e.g. triangulation) which are both error-prone and with a costly overhead. Instead of localizing nodes in a traditional 2-dimensional space, the authors intend to use directly the raw distance to a set of anchors to route messages in the multi-dimensional space. This should enable one to use any geographic routing protocol in a robust and efficient manner in a very large range of scenarios.
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