Wireless Network SetupThe wireless network can be created in NS2 using the components of a mobile node and its configurations in every layer. Nodes can be deployed either randomly or in a deterministic manner in flat-grid network space. Mobility model of the nodes can be created and integrated in the simulation. Data communication between nodes can be configured with transport and application layer agents that are required to be attached to both sender and receiver nodes. Different types of wireless networks such as Mobile ad hoc Network (MANET), Vehicular ad hoc Network (VANET), Wireless Sensor Network (WSN), Cognitive Radio Network (CRN), Wireless Mesh Network, Cellular network, and Heterogeneous network can be simulated subjective to their own protocol specifications and configurations. Protocols and Configuration parametersThe physical layer facilitates the configuration of channel, interfaces, antenna type, signal propagation model, energy model, error model, and channel fading scheme. Animation of Wireless NetworkRegarding the animation of wireless network, it supports the labeling, coloring and of the nodes for differentiation.
Since nodes share the wireless medium via wireless channel there are no visible physical links in the network name. It is also possible to drag and drop the nodes in NAM tool to view the network in a desired topological manner. Packet transmission between wireless nodes can be viewed during animation. Properties of the packets and links can be seen if they are clicked in NAM. Ongoing network process can be annotated using trace annotate option and it will be displayed at the bottom of network animation window.
NS2 program for code division multiple access Code division multiple access (CDMA) is a channel access method used by various radio communication technologies.CDMA is an example of multiple access, which is where several transmitters can send information simultaneously over a single communication channel.
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