Wireless Communications from the Ground Up: An SDR Perspective by Qasim Chaudhari
The first wireless transmitters went on the air in the early 20th century using radiotelegraphy, which is radio communication using Morse code or other coded signals. Later, asmodulationmade it possible to transmit voice and music wirelessly, the medium became known asradio. Wireless transmitters us...
On the Overhead of Interference Alignment: Training, Feedback, and Cooperation IEEEIEEE Transactions on Wireless CommunicationsO. El Ayach, A. Lozano, and R. W. Heath Jr., "On the overhead of interference alignment : Training, ... O El Ayach,A Lozano,Heath, Jr., Robert W - 《IEEE ...
The pictorial representation of UAVs communication protocols is as shown in Fig. 13. 1. MAC layer:The medium access control layer is one of two sublayers that make up data link layer. It is used to send data packets to and from the network interface card to another shared channel over ...
devices as intentional devices for protection from EM waves as shown inFig. 4. In the range of 1–5 GHz used for many technologies as inGPS, cordless phones etc.[39,40]. Applications used in the range of more than 5 GHz frequency range are in satellite communication systems, ...
Beamforming prediction based on the multireward DQN framework for UAV-RIS-assisted THz communication systems Wu, Yuewei; Xu, Peng; Lv, Yi; Wang, Dongming; Gao, Feifei; Wang, Jiangzhou Sci China Inf Sci, 2024, 67(12): 229303 Keywords: reconfigurable intelligent surface; beamforming; double Q...
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As shown in Figure 3, the THz communications prototype is tested in an urban scenario. The transmitter simulates a typical base station installed on the roof of a building and the terminal receiver on the ground level of a city street. The roof-to-ground distance is about 500 meters, and...
serve to break the spectrum up into a series of broad bands which are well suited for transmission over longer distances, in which the relatively small continuum background (due to water dimers and other species) is the dominant contribution to atmospheric loss11. In fact, these absorption reson...
The term wireless communication was introduced in the 19th century and wireless communication technology has developed over the subsequent years. It is one of the most important mediums of transmission of information from one device to another devices. In this technology, the information can be trans...