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Wsn architecture

Wsn architecture

The architecture used in WSN is sensor network architecture. This kind of architecture is applicable in different places such as hospitals, schools, roads, buildings as well as it is used in different applications such as security management, disaster management & crisis management, etc.

  1. How many architectures are there in WSN?
  2. What are the components of WSN?
  3. What is WSN and its applications?
  4. What is single node architecture in WSN?
  5. What is WSN and its types?
  6. What are the three basic technologies involved in WSN *?
  7. What are the limitations of WSN?
  8. What are the challenges of WSN?
  9. Why do we need WSN?
  10. Which operating system is used in WSN?
  11. What is the difference between WSN and IoT?
  12. Which memory is used in WSN for fast data storage?
  13. What is energy consumption in WSN?
  14. Can you provide a definition for single node architecture?

How many architectures are there in WSN?

There are 2 types of architecture used in WSN: Layered Network Architecture, and Clustered Architecture.

What are the components of WSN?

The components of WSN system are sensor node, rely node, actor node, cluster head, gateway and base station.

What is WSN and its applications?

Generally, WSN could be defined as a small system of nodes which accommodatingly sense, monitor, capture, process and control situations such as data/signals around an application, supporting dealings between peoples/computer systems and the immediate surrounding [12, 13, 14].

What is single node architecture in WSN?

A single node instance, as its name suggests, contains only one node and that node can be accessed directly. As a supplement to the cluster and replica set architectures, the single-node architecture is useful for R&D, testing, and non-core data storage of enterprises.

What is WSN and its types?

Wireless Sensor Network (WSN) is an infrastructure-less wireless network that is deployed in a large number of wireless sensors in an ad-hoc manner that is used to monitor the system, physical or environmental conditions.

What are the three basic technologies involved in WSN *?

Abstract. Wireless sensor network is an emerging technology developing rapidly in the last ten years. Two key technologies of WSN, location-awareness and data fusion are mainly reviewed in this paper.

What are the limitations of WSN?

Following are the drawbacks or disadvantages of WSN: ➨As it is wireless in nature, it is prone to hacking by hackers. ➨It can not be used for high speed communication as it is designed for low speed applications. ➨It is expensive to build such network and hence can not be affordable by all.

What are the challenges of WSN?

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. physical environment. Mobile nodes have the ability to sense, compute, and communicate like static nodes.

Why do we need WSN?

Wireless Sensor Networks (WSNs) provide several types of applications providing comfortable and smart-economic life. Energy saving minimizing the rare sources of energy, noise and atmospheric monitoring reducing the pollution, and healthcare monitoring helping the health are examples of important applications in WSNs.

Which operating system is used in WSN?

Contiki [18], is a lightweight open source OS written in C for WSN sensor nodes. Contiki is a highly portable OS and it is build around an event-driven kernel. Contiki provides preemptive multitasking that can be used at the individual process level.

What is the difference between WSN and IoT?

In an IoT system, all of the sensors directly send their information to the internet. ... Conversely, in a WSN, there is no direct connection to the internet. Instead, the various sensors connect to some kind of router or central node. A person may then route the data from the router or central node as they see fit.

Which memory is used in WSN for fast data storage?

One of the important OS design issues which requires lot more attention is memory management in WSN. Memory in current sensor nodes consists of: RAM (for fast data storage), internal flash (for code storage), EEPROM (for data storage), and external flash which is required for data persistence.

What is energy consumption in WSN?

4. Energy consumption. Energy consumption means the total energy consumed by the network to perform transmission, reception and data aggregation. The comparisons performed among the different approaches based on the energy consumption in both cluster head sensor nodes and cluster member sensor nodes.

Can you provide a definition for single node architecture?

 Devices that can observe or control physical parameters of the environment. ◦ In wireless sensor node, DSP could be used to process data coming from simple analog, wireless communication device to extract a digital data stream. ◦ Flexible, can be reprogrammed to adapt to a changing set of requirements.

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