An adaptive mesh-based protocol for geocast routing

Virtual Surrounding Face Geocasting with Guaranteed Message Delivery for Ad Hoc and Sensor Networks

“…Geocasting with guaranteed message delivery and low transmission cost has been extensively studied in literature [4,[9][10][11][12][13][14][15][16][17][18]. Three algorithms, namely Depth-First Face Tree Traversal (DFFTT) [4], Restricted Flooding with Intersected Face Traversal (RFIFT), and Entrance Zone Multicastingbased Geocasting (EZMG) [17,18], guarantee message delivery.…”

“…In the first class of algorithms, a restricted forwarding zone, covering both the source node and the geocasting region, is used to limit the scope of flooding [9,12,13,16]. In LocationBased Multicast (LBM) [9], the minimum rectangular area containing both the source node and the geocasting region is chosen as the forwarding zone.…”

“…Next, restricted flooding is performed by nodes within the forwarding zone. Two later approaches [12,13,16] using forwarding zones were proposed to improve the performance. These two approaches differ from LBM in the ways a forwarding zone is selected.…”

“…Many algorithms have been proposed in literature [9][10][11][12][13][14][15][16][17][18] to achieve geocasting. However, the approaches presented in [9][10][11][12][13][14][15][16] do not guarantee message delivery and incur high transmission costs. Of the existing approaches, four algorithms-one in reference [17] and three in reference [18]-guarantee message delivery in continuous geocasting regions.…”

Sistema de comunicaciones V2X para vehículos inteligentes como soporte para sistemas cooperativos

“…TABLA 2.2: Comparación de protocolos de geocast extraída de (Maihofer, 2004) Criterion Flooding LBM (Ko and Vaidya, 1999) Voronoi (Stojmenovic et al, 2003) Mesh (Boleng et al, 2001) (Camp and Liu, 2003) (Ni et al, 1999)). …”