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In a certain wireless channel, the delay spread TD =10 µsec and the maximum Doppler spread fd=0.2 kHz. The maximum propagation attenuation is 40dB.
The total power available at the transmitter is 1.08Watt. (Hint: i.e., the minimum received signal power is 0.108 mWatt.) The total bandwidth is 2 MHz
For the OFDM receiver, the received noise power density is 0.1µWatts/MHz. The total intercarrier interference power (for all subcarriers combined) is (fdT) 2mWatts where T is the OFDM symbol duration.
a.) what is the minimum guard time interval for preventing intersymbol interference?
b.) what is the maximum data rate (BPSK signaling) where minimum SINR is 40 (in linear scale)?
A 5-volt intelligence amplitude causes the frequency to change to ± 25 kHz. What will be the carrier frequency variation corresponding to an intelligence amplitude of 10 volts
1. Obtain a minimal hazard free SOP expression for f(A,B,C,D)=fm(0,1,5,6,8,11,13,14,15),d(2,3,10). 2.Implement f(A,B,C,D)=åm(0,4,5,7,10,13,14,15),d(1,2,9) using a minimal number of 1-of-2 MUXs and NOT gates (if needed).
A waveform generator is connected to an op-amp which has been setup as a voltage follower. The voltage follower is then loaded with a 50 Ohm resistor. What output impedance setting should the waveform generator use
Networks play an important role in telecommunications. Networking has a tremendous effect on people's everyday lives. Identify the necessary components required in designing a wire-based and wireless network.
modify the Very Simple CPU to incorporate a new 8-bit register,R, and two new instructions. MVAC performs the transfer Râ†AC and has the instruction code 1110 XXXX; MOVR performs the operation ACâ†R and has the instruction code 1111 XXXX.
Waves and Strings: compute the tension in the top string (i.e. E string, lowest note) of a properly tuned guitar. You will likely need to spend a couple minutes on the internet to obtain length and any other important properties of the string.
Semiconductor A is direct band gap and semiconductor B is indirect gap. For providing same short circuit current density of a solar cell, which material will need more thickness
A certain engine lathe can be purchased for $330,000 and depreciated over three years to a zero salvage value with the SL method. This machine will produce metal parts that will generate revenues of $220,000 (time zero dollars) per year.
A fair 6-sided die was tossed in a fair way 5 times. a. What's the probability of getting the sequence of outcomes 1, not 1, 2, not 2, 3 b. What's the probability of getting exactly two 6's in the sequence of 5 tosses
A 480-V, 60Hz, 500-hp 0.85-PF-leading eight-pole delta-connected synchronous motor has a synchronous reactance of 0.6 ohms and neglible armature resistance. Ignore its friction, windage and core losses for the purposes of this problem.
A parallel-plate capacitor has a plate sepration of 0.025mm and ceramic dielectric with \(\epsilon r= 250. \) Determine the plate surface area in square meters if C= 10 \(\mu F\) What are the basic physical configurations of a capacitor
The transmitter has a power of 7 watts and the receiver needs at least 266 milliwatts to operate. Which is the maximum attenuation in dB allowed (value must be negative)
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