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Suppose that a 5 Mbps link is being shared by a number of users. Each user alternates between period of activity during which the user transmits at rate 1 Mbps and periods of silence, when the user does not transmit. Assume that each user is in the active state only 15% of the time.
a) If circuit switching is used, what is the maximum number, Nc, of users that can be supported on the link?
b) With circuit switching, suppose it takes 500 ms to set up the circuit. If the length of the link is 100 km, how long would it take for a user to transfer a 320 Kbit file across the link from one end to the other (assume that the signal propagation speed along the link is 2.8*108 m/s)?
c) Now suppose that packet switching is being used. In order for the average queueing delay to be acceptable, the probability that the aggregate transmission rate of the users exceeds the link rate must be less that 10-4. In this case, what is the maximum number of users, Np, that can be supported on the link?
A 75-W, 120-V tungsten incandescent lamp has a resistance of 19.2Ω when no current flows through it. 1.What is the resistance of the lamp when it is connencted to 120-V cource
write a subroutine in 68000 assembly language to add two 32-bit packed BCD numbers. BCD number 1 is stored at a location starting from $ 500000 through $ 500003, with the least significant digit at $ 500003 and the most significant digit.
For the difference equation below, find the impulse response by first solving without any transforms. Assume sequence is zero-valued for n
According to the TL081 datasheet, the input noise voltage and current of TL08 are 25 nV/ÖHz and 0.01 pA/ÖHz, respectively. Assuming the circuit operates under room temperature, please find the output voltage Vout
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A 1.2 MW wind turbine has a rotor diameter of 64 m. the turbine operates in an area with an average wind velocity of 7.5 m/s and the air density of 1.18 kg/m^3. the turbine power coefficient including the unit efficiency is 42.8 percent.
An incident -ray photon is scattered from a free electron that is initially at rest. The photon is scattered straight back at an angle of 180 degrees from its initial direction. The wavelength of the scattered photon is 9.00×10^-2 nm.
Through the data sheet the power meter is 4.5 HP. Find the hp range for PH-3A-HG in hp. The power meter measures the power and outputs a 0 - 10 voltage signal. Calculate the conversion factor for converting the voltage output from the sensor into ..
Three of the above single phase transformers are connected as a 3-phase transformer bank. The high voltage side of the transformer bank is connected in Y and the power is supplied to the transformer bank through a transmission line
A circuit is needed to display a 4-bit value on the LEDs of the logic designer. This value can come from two different sources. Design a circuit using four 2-to-1 multiplexers to select which of the two values to display on the LEDs.
Use contraction beginning with a 4-bit adder with carry out to design a 4-bit increment-by-3 circuit with carry out that adds the binary value 0011 to its 4-bit input. The function to be implemented is S = A + 0011.
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