If the range of transmission power without IRS is too high, and the BS has at most 40 dBm. How can we have high range transmission of power?
where IRS is the intelligent reflective surfaces, and BS is the base station
IRS or no IRS, isn't this a standard problem of propagation loss? You have to know the sensitivity of the receiver, the noise power at the receiver, the gain of the receive antenna, the range to the transmitter, the terrain characteristics, and consequent signal loss along the path, and the transmit power and transmit antenna gain.
Now, without IRS involved, you can compute the signal to noise ratio at the receiver, and determine if communications are possible, using a given type of modulation. There will be different marginal SNR requirements, depending on type of modulation you want to use. Shannon's equation can be used, to predict the maximum possible channel capacity, along a single propagation path, with a given channel bandwidth and SNR.
I'd say that using IRS, at either or both ends, is much the same as changing transmit and/or receive antenna gain.
Hi.,
At a power plant, a transformer increases the voltage of generated power by thousands of volts so it can be sent of long distances through high-voltage transmission power lines. Transmission lines are bundles of wires, known as conductors, that ship electric power from power plants to distant substations.
A typical maximum transmission distance is about 300 miles (483 km). High-voltage transmission lines are quite obvious when you see them. They are normally made of huge steel towers like this: All power towers like this have three wires for the three phases.High voltage transmission lines deliver electricity over long distances. The high voltage is required to reduce the amount of energy lost during the distance. Unlike other energy sources such as natural gas, electricity can't be stored when it is not used. If demand exceeds supply, a blackout occurs.
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