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Artículo

Improved geographic routing in sensor networks subjected to localization errors

Milocco, Ruben HoracioIcon ; Costantini, H.; Boumerdassi, S.
Fecha de publicación: 02/2014
Editorial: Elsevier Science
Revista: Ad Hoc Networks
ISSN: 1570-8705
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Ciencias de la Computación

Resumen

Geographic routing strategies used in wireless communication networks require that each transmitting node is aware of its location, the locations of its neighbors, and the destination. With this information, the message is routed by choosing intermediate nodes, or relays, which allow the destination to be reached with the maximum possible transmitted information rate and with minimum delay. However, this strategy needs to take into account the uncertainties of the relays locations in order to avoid an important performance degradation of the link, or even a routing failure. Taking into account the presence of uncertainties in the relays locations, each possible geographic routing strategy is able to recognize a subset of nodes that can be candidates for relays. Furthermore, the transmission range between nodes not only depends on the distance between them, but also the communication channel fading. Based on the effect that these uncertainties have on the link channel capacity, a minimization of a cost function is proposed to decide the next hop relay, which optimizes, in mean, the maximum rate of information transmitted with the minimum number of hops. Using the location statistics, this optimal strategy is applied for both one-hop decisions and two-hops decisions. Working expressions for on-line fast calculations are provided and used for results illustrations.
Palabras clave: GEOGRAPHIC ROUTING , LINK-CAPACITY , LOCATION UNCERTAINTY , RELAY DECISIONS
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/180523
URL: https://www.sciencedirect.com/science/article/abs/pii/S1570870513002060
DOI: http://dx.doi.org/10.1016/j.adhoc.2013.10.001
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Articulos(CCT - PATAGONIA CONFLUENCIA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA CONFLUENCIA
Citación
Milocco, Ruben Horacio; Costantini, H.; Boumerdassi, S.; Improved geographic routing in sensor networks subjected to localization errors; Elsevier Science; Ad Hoc Networks; 13; PART B; 2-2014; 476-486
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