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Determine the maximum and minimum spectral frequencies received from a stationary GSM transmitter that has a center frequency of exactly 1950.000000 MHzassuming that the receiver is traveling at speeds of 1. 1 km/hr 2. 5 km/hr 3. 100 km/hr 4. 1000 km/hr PROBLEM 2: Describe all the physical circumstances that relate to a stationary transmitter and a moving receiver such that the Doppler shift at the receiver is equal to : 1. 0 Hz 2. fdmax 3. ?fdmax 4. fdmax/2 PROBLEM 3: A total of 24 MHz of bandwidth is allocated to a particular FDD cellular telephone system that uses two 30 KHz simplex channels to provide full duplex voice and control channels.Assume each cell phone generates 0.1 Erlangs of traffic.Assume Erlang B is used. a) Find the number of channels in each cell for a four-cell reuse system. b) If each cell is to offer capacity that is 90% of perfect scheduling,find the maximum number of users that can be supported per cell where omnidirectional antennas are used at each base station. c) What is the blocking probability of the system in (b) when the maximum number of users are available in the user pool? d) If each new cell now uses 1200 sectoring instead of omnidirectional for each base station,what is the new total number of users that can be supported per cell for the same blocking probability as in (c)? e) If each cell covers five square kilometers ,then how many subscribers could be supported in an urban market that is 50km * 50 km for the case of omnidirectional base station antennas? f) If each cell covers five square kilometers,then how many subscribers could be supported in an urban market that is 50 km * 50 km for the case of 120o sectored antennas?
Assume the average energy density of sunlight to be 800 w/m^2 ---and the overall photovolatic system efficiency to be 10 percent. Calculate the land area covered with photovolatic cells needed to produce 1000 Mw , the size of a typical large centr..
design and construct a circuit for a cookie vending machine. The machine sells cookie for 75 Yen each. Assume that there are only 25, 50, and 100 Yen coins. Three different types of coins can be denoted by three different switches on the board, re..
A given device has been determined that it attenuates 4.8dB in power from its input terminal to its output terminal. What is the output power in watts if a 150-W input has been launched into a system that has two of this type of devices
In a scanning electron microscope, an electron is accelerated by a static electrode biased with a 12 kV voltage relative to the electron source. Upon bombarding the sample the electron “kick out†photons with specific wavelength.
Use the table on slide 11 of this lecture and determine the line parameters L and C of the transmission line. Consider that the TL is lossless and µ = µ0 for polystyrene. Then find the characteristic impedance of the line Z0, phase velocity
A coaxial line is filled with a very slightly lossy material with a relative dielectric constant of 5 The line would have a characteristic impedance of 100 ohm if it was air-filled. (a) What is the characteristic impedance of the dielectric-filled li..
What are the main characteristics of the core : 1) of a step-index multimode optical fiber 2) of a graded-index multimode optical fiber 3) of a single mode optical fiber
A matrix is basically a 2-dimensional array. Given an int matrix with m rows and n columns, write a function called display to print it in the matrix format. Write a complete program to test your function.
A Dc machine is connected across a 240-volt line. It rotates at 1200 rpm and is generating 230 volts. the armature current is 40amps. A) Is the machine functioning as a generator or motor
How to identify the starting and ending leads of winding in a motor which is having 6 leads in the terminal box.
Assuming that your mother is not an electrical engineer or computerengineer, briefly tell how you would explain to her the difference between a RISC machine and a CISC machine and how you would explainthe advantage and disadvantages of each approa..
Synchronous Satellite Link: Consider a 2 GHz link between asynchronous satellite and a ground station on the equator. The bandwidth of the up-link and down-link are the same. The orbital radius of the satellite is 36,000 Km and the radius of the E..
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