WebITU, through its Radiocommunication Sector (ITU-R), and its executive arm, the Radiocommunication Bureau (BR), is the global agency responsible for management of the radio-frequency spectrum and satellite orbit resources. With the steady expansion of wireless services worldwide, all services relying on radio waves are competing for a … WebThe language of the Olmecs , also known as"protomayahuasteca", is a dialect of the protofamiliamixe-zoque. This civilization did not leave any type of testimony in which one can deduce how they really spoke. However historians and archaeologists have done an important research work and thanks to this we have more information on the language of ...
Optical Wireless Communications - Springer
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Special Issue "Advanced Antennas for Wireless Communication …
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