Centralized Routing for Resource-Constrained Wireless Sensor Networks (SYS 5). Stathopoulos, T., Girod, L., Heidemann, J., Estrin, D., & Weeks, K. Poster presented at CENS 2006 Research Review, October, 2006.
Centralized Routing for Resource-Constrained Wireless Sensor Networks (SYS 5) [link]Paper  abstract   bibtex   
We propose CentRoute a centralized on-demand tree-based routing protocol for resource constrained wireless sensor networks. CentRoute is a unicast routing protocol that utilizes source routing to form paths from a node to the sink and vice-versa. Each node in the network can connect to a single tree at a time which is controlled by a dynamically selected root (or sink). By centralizing routing decisions at the root of the tree, which is not subject to the same resource constraints as the rest of the nodes, CentRoute can avoid routing instabilities and inconsistencies, such as loops. The protocol has constant state requirements on the resource-constrained nodes and as a result can scale to networks of high density. Its on-demand nature results in a low control overhead, as the paths are maintained only when data flows through them. We evaluate the performance of our protocol using simulations as well as an experimental testbed.
@Misc{Stathopoulos06b,
	author = 	"Thanos Stathopoulos and Lewis Girod and John Heidemann and Deborah Estrin and Karen Weeks",
	title = 	"Centralized Routing for Resource-Constrained Wireless Sensor Networks (SYS 5)",
	howpublished = "Poster presented at CENS 2006 Research Review",
	year = 	2006,
	sortdate = "2006-10-01",
	project = "ilense, nocredit, macss, ens",
	jsubject = "sensornet_data_dissemination",
	month = oct,
	location = 	"johnh: pafile",
	keywords = 	"centroute seminal reference poster",
	url =		"http://www.isi.edu/%7ejohnh/PAPERS/Stathopoulos06b.html",
	pdfurl =	"http://www.isi.edu/%7ejohnh/PAPERS/Stathopoulos06b.pdf",
	otherotherurl = 	"http://repositories.cdlib.org/cens/Posters/284/",
	otherurl = "http://repositories.cdlib.org/cgi/viewcontent.cgi?article=1863&context=cens",
	abstract = "We propose CentRoute a centralized on-demand tree-based routing
                  protocol for resource constrained wireless sensor
                  networks. CentRoute is a unicast routing protocol
                  that utilizes source routing to form paths from a
                  node to the sink and vice-versa. Each node in the
                  network can connect to a single tree at a time which
                  is controlled by a dynamically selected root (or
                  sink). By centralizing routing decisions at the root
                  of the tree, which is not subject to the same
                  resource constraints as the rest of the nodes,
                  CentRoute can avoid routing instabilities and
                  inconsistencies, such as loops. The protocol has
                  constant state requirements on the
                  resource-constrained nodes and as a result can scale
                  to networks of high density. Its on-demand nature
                  results in a low control overhead, as the paths are
                  maintained only when data flows through them. We
                  evaluate the performance of our protocol using
                  simulations as well as an experimental testbed.
",
}

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