What are the security requirements of wireless sensor networks?
The so far listed security requirements of WSN are data confidentiality, data integrity, data freshness, and data authentication and availability [12–15].
What are the medical applications of wireless sensor networks?
In recent years a significant development of BASN (Body Area Sensor Networks) as a special subclass of WSN (Wireless Sensor Networks) has emerged. These networks have enabled a rapid development of telemedicine systems, which provide remote monitoring of patients and their vital parameters.
How security is distributed in wireless sensor network?
WSNs are autonomous and are distributed in space. Due to the absence of central authority and random deployment of nodes in the network, WSN is prone to security threats. Well-known attacks in WSN are a malicious attack (such as compromised node imitating as one of the network nodes, misleading other nodes).
How do you create a cluster in wireless sensor networks?
Clustering is one of the important methods for extend the network lifetime in wireless sensor networks (WSNs). It involves grouping of sensor nodes into clusters and electing cluster heads (CHs) for all the clusters.
Why security is important in wireless sensor networks?
Security : One of the challenges in WSNs is to provide high-security requirements with constrained resources. The security requirements in WSNs are comprised of node authentication, data confidentiality, anti-compromise and resilience against traffic analysis.
What are the main challenges in design of wireless sensor network?
Challenges in such WSN include high bandwidth demand, high energy consumption, quality of service (QoS) provisioning, data processing and compressing techniques, and cross-layer design.
What is the advantage of wireless sensor networks in health care?
The application of WSNs for patient monitoring offers some advantages over the wired systems like the ease of use, reduced risk of infections, reduced risk of failures, enhanced mobility and lower the cost of delivery [9] .
What is wireless technology in healthcare?
Modern equipment in medical industry uses wireless technology to transfer information. It offers greater accuracy, avoids manual tasks and anyone can access the data in real-time. New generation medical devices can be connected to wireless networks using Wi-Fi or Bluetooth and can be accessed remotely.
What kind of security support does leap provide in wireless sensor networks?
LEAP is designed to support secure communications in sensor networks; therefore, it provides the basic security ser- vices such as confidentiality and authentication. In addition, LEAP is to meet several security and performance require- ments that are considerably more challenging to sensor net- works.
What is cluster in wireless sensor network?
Clustering is one of the important methods for prolonging the network lifetime in wireless sensor networks (WSNs). It involves grouping of sensor nodes into clusters and electing cluster heads (CHs) for all the clusters. A major challenge in WSNs is to select appropriate cluster heads.
What is cluster in wireless communication?
A cluster is a group of cells in which all available frequencies have been used once and only once. Since the same frequencies can be used in neighboring clusters, interference may become a problem.
What is wireless sensor network explain with sample applications?
Wireless Sensor Networks (WSNs) can be defined as a self-configured and infrastructure-less wireless networks to monitor physical or environmental conditions, such as temperature, sound, vibration, pressure, motion or pollutants and to cooperatively pass their data through the network to a main location or sink where …