Sensor coverage in WSNs deal with:
Answers
Answered by
2
Wireless sensor networks (WSNs) have received significant attention of researchers in
recent years due to its wide range of applications such as military surveillance,
environmental monitoring, forest fire detection, healthcare and other areas
[Akyildiz02, Chong2003]. A wireless sensor network composes of a large scale of
sensor devices (called sensor nodes) equipped with sensor unit, a wireless
communication unit, a battery power unit and a programmable embedded processor.
The sensor nodes are capable of sensing, data processing, and communicating with
each other via radio transceivers. They coordinate with each other to establish a
network to remotely interact with the physical world, such as to monitor a
geographical region or a set of targets spread across a geographical region, and to
report sensed data to the monitoring center, which is connected to the base station.
Wireless networks can be random or deterministic deployed in physical environments
to collect information from an area of interest in a robust and autonomous manner.
An important research issue in wireless sensor network is the coverage problem
which reflects how well the deployed sensor nodes can monitor a set of targets.
Sensor activation scheduling under constraint on covering of targets is called the
coverage problem in the literature. There are two types of targets: area [Cardei02,
Carle04, SP01, Tian02, Wang03, Zhang05] and point [CardeiDu05, Kar03, CTW05,
Cheng05, Li07a, Li07b]. In area coverage problem, a set of sensors is given and
distributed over a geographical region to monitor a given area. But in point coverage
problem, a set of sensors is given and distributed over a geographical region to
monitor a set of points (or targets). The sensing range of a sensor is typically model as
disk in the 2D space or as a sphere in the 3D space, with the sensor located in the
center. The communication range of a sensor is modeled in the same way. A sensor
can monitor all targets that fall in its sensing range. The data sent by the sensor can be
received by all sensors that fall in its communication range. A sensor’s transmission
range is typically larger than its sensing range.
recent years due to its wide range of applications such as military surveillance,
environmental monitoring, forest fire detection, healthcare and other areas
[Akyildiz02, Chong2003]. A wireless sensor network composes of a large scale of
sensor devices (called sensor nodes) equipped with sensor unit, a wireless
communication unit, a battery power unit and a programmable embedded processor.
The sensor nodes are capable of sensing, data processing, and communicating with
each other via radio transceivers. They coordinate with each other to establish a
network to remotely interact with the physical world, such as to monitor a
geographical region or a set of targets spread across a geographical region, and to
report sensed data to the monitoring center, which is connected to the base station.
Wireless networks can be random or deterministic deployed in physical environments
to collect information from an area of interest in a robust and autonomous manner.
An important research issue in wireless sensor network is the coverage problem
which reflects how well the deployed sensor nodes can monitor a set of targets.
Sensor activation scheduling under constraint on covering of targets is called the
coverage problem in the literature. There are two types of targets: area [Cardei02,
Carle04, SP01, Tian02, Wang03, Zhang05] and point [CardeiDu05, Kar03, CTW05,
Cheng05, Li07a, Li07b]. In area coverage problem, a set of sensors is given and
distributed over a geographical region to monitor a given area. But in point coverage
problem, a set of sensors is given and distributed over a geographical region to
monitor a set of points (or targets). The sensing range of a sensor is typically model as
disk in the 2D space or as a sphere in the 3D space, with the sensor located in the
center. The communication range of a sensor is modeled in the same way. A sensor
can monitor all targets that fall in its sensing range. The data sent by the sensor can be
received by all sensors that fall in its communication range. A sensor’s transmission
range is typically larger than its sensing range.
Answered by
0
WSN stands for Wireless Sensor Network.
It a wide range of sensors which are used for monitoring and organizing the data. The data are collected and stored in a particular place. The data include temperature, wind, etc. These networks are due to wireless connectivity. This is because the formation of networks are so fast that the data can be transmitted without wire.
Similar questions