IntroductionThe range of wireless networking technologies is extended to cover voice networks and general data, allowing users to transmit different types of data over wireless connections wire over long distances, in addition to covering infrared light and radio frequency techniques optimal for short-range wireless communications. And with the popularity of laptops, cell phones, handheld computers, PDAs (PDAs), pen computers, GPS devices and the post-PC era. Smart electronic devices that rely on wireless networking technologies have become cheaper, more distributed, and more prevalent in daily life. For example, users can use their cell phone to access their email. As for travelers, they can use laptops and connect to the Internet via base stations installed in airports, train stations and other public places. Even at home, users can connect devices to sync data and transfer files. From this point of view, the emergence of wireless networks such as wireless sensor networks (WSN) and mobile ad hoc networks (MANET) can be regarded as the new trend of Moore's law regarding smallness and size. omnipresence of computing devices. An overview of these two types of wireless networks (WSN) and (MANET) and their use will allow us to make a comparison between them. Wireless Sensor Networks (WSN) Wireless sensor networks (WSN) are a set of sensors used in transmitting or monitoring specific physical or chemical phenomena such as heat, humidity, vibration, light, pressure, etc., then wirelessly transfer the information relating to this phenomenon to the data of the processing center to benefit from it without the need for the presence of humans in the location of the phenomenon. Generally, wireless s...... middle of paper ...... applications of wireless technology, and it is likely to see greater deployment in the next few years, as they primarily deal with unknown and untested environments and provide reliable monitoring and analysis. (MANETs) and (WSNs) are ad hoc networks, with limited or no mobility in (WSNs). And none of them replaces the other. And they have many differences as well as many similarities. They provide faster means of communication, where infrastructure, without networks, can modify many applications involved in military strategy, environmental monitoring, information transfer and homeland security. This idea could spark a wave of wireless communication that the world has yet to see. And independent mobile users will need to deploy quickly to overcome the fact of decentralized connectivity and infrastructure-less networks..