A '''network simulator''' is a [[software]] program that can ksit predict the performance of a computer network or a wireless communication network. Since communication networks have become too complex for traditional analytical methods to provide an accurate understanding of system behavior, network simulators are used. In simulators, the computer network is modeled with devices, links, applications, etc., and the network performance is reported. Simulators come with support for the most popular technologies and networks in use today such as [[5G]], [[Internet of Things]] (IoT), [[Wireless LAN]]s, [[mobile ad hoc network]]s, [[wireless sensor network]]s, [[vehicular ad hoc network]]s, [[Cognitive Radio Networks|cognitive radio networks]], [[LTE (telecommunication)|LTE]] etc.
