Wireless Sensor Network Simulation

Modules and Tools for Wireless Sensor Network Simulation

• The WSN Simulator consists of modules such as Event, Medium, Environment, Node, Transceiver, Physical Protocol, MAC Protocol, Routing Protocol, and Application Layer.
• The Event module is the foundation for the functioning of all events and is responsible for comparing events based on their start time and equality, and firing the event.
• The Medium module defines the communication between nodes and determines the working of nodes based on properties such as transmitted power and receiver sensitivity. It also includes the bandwidth and wavelength of the medium modeled and a reference to a propagation model.
• The Environment module determines the physical properties of the network, including light, temperature, humidity, sound, optical coverage area, and magnetic field.
• The Node module represents a single node in the sensor network and includes hardware and software properties such as processor, transceiver, sensor, energy source, routing protocol, and applications.
• The Transceiver module covers the hardware transceiver of the sensor node, including the transceiver states, behavior of nodes, and power consumption levels. It generates events for the beginning and ending of every signal transmitted and exchanges events with the Medium module instance.
• The Physical Protocol module is the bottom-most layer of the network stack and is mostly implemented in the hardware of the transceiver. It provides services such as changing the state of the transceiver, carrier sensing, sending and receiving packets, detecting energy on receipt of network packets, and channel changing on the physical layer.
• The MAC Protocol layer lies between the Physical Layer and Routing Layer of the network stack and is mostly implemented on software operating in the node’s processor. It is responsible for services such as channel access policies, scheduling, buffer management, error management, and sending and receiving packets between nodes.
• Routing Protocols in WSN can be classified based on functioning and applications, participation style, and network structure.
• The Application Layer comprises various application-layer protocols that perform various sensor network applications like query dissemination, node localization, time synchronization, and network security.
• WSN Simulators use Trace-Driven and Discrete Event Simulation.
• Popular WSN Simulators include NS-2, NS-3, OMNeT++, OPNET, Castalia, COOJA, TOSSIM, J-Sim, Mannasim, SensorSim, NRL Sensorsim, NCTUns 6.0, SSFNet, and GloMoSim.

Test your knowledge on the modules and tools used for Wireless Sensor Network Simulation. This quiz will cover various aspects of WSN simulation, including the event, medium, environment, node, transceiver, physical protocol, MAC protocol, routing protocol, and application layer. You will also learn about the classification of routing protocols and various WSN simulators, including their simulation techniques. Sharpen your knowledge and improve your understanding of WSN simulation by taking this quiz now.