Radio Frequencies are generated by antennas. In wireless principles, Antennas are very important. Omnidirectional and Directional Antennas.The Wi-Fi Aliance is the non profit organization that certifies the wireless products of the vendors as they are compatible with the 802.11 standard. So, network vendors produce their products according to these standards. IEEE defined the technical standards of 802.11. Radio Frequency (RF) Spectrums and the Satellite Orbits of wireless communication are managed by International Telecommunication Union-Radio Communication Sector (ITU-R) all over the World.īeside Telecommunication Union-Radio Communication Sector (ITU-R) that manages RF spectrums and satellite orbits, wireless networking standards are managed by two organization all over the World. For this communication both sides of the communication must use the same frequency or in other words same channel. Data can transfer through both direction as bidirectional or can only from one side to another as unidirectional. As all communication types, here there is a sender and a receiver. Wireless communication is a communication type that is done over Radio Frequency (RF) Signals. In this wireless principles lesson, we will cover antenna types used in wireless LANS and we will learn wireless topology types like BSS, ESS, IBSS.
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