@article{Li2009Connectivity,
author = {Ji Li and Lachlan L. H. Andrew and Chuan Heng Foh
and Moshe Zukerman and Hsiao-Hwa Chen},
title = {Connectivity, coverage and placement in wireless
sensor networks},
journal = {Sensors},
volume = {9},
number = {10},
pages = {7664-7693},
month = {Sep.},
year = {2009},
abstract = {Wireless communication between sensors allows the
formation of flexible sensor networks, which can be deployed rapidly over wide
or inaccessible areas. However, the need to gather data from all sensors in the
network imposes constraints on the distances between sensors. This survey
describes the state of the art in techniques for determining the minimum density
and optimal locations of relay nodes and ordinary sensors to ensure
connectivity, subject to various degrees of uncertainty in the locations of the
nodes.}
}