(d) Given a bandwidth of 1 MHz, specify a modulation format (other than OFDM) that will...
Consider an OFDM implementation with 1024 subcarriers in one OFDM symbol, among which 75% of the subcarriers are used for data transmission. For a transmission bandwidth of 12.5 MHz, in order to support a transmission data rate of at least 50 Mbps, what kind of QAM modulation should be used?
Consider an OFDM implementation with 1024 subcarriers in one OFDM symbol, among which 75% of the subcarriers are used for data transmission. For a transmission bandwidth of 12.5 MHz, in...
Provided is a channel of 10 MHz bandwidth to be shared by 5 users. It is decided the channel is going to be shared by the users using FDM. A guard band of 1 MHz between each channel is allocated to avoid interference. Each user is given an equal share of bandwidth. Assume each user has 1 MB of data to transfer and can utilize the channel at full capacity. Calculate the time required to transfer all data when (i)...
Problem 1 Given the OFDMA scheme with the following constraints, iA bandwidth of 5 MHz in) The channel spacing is 15 KHz and symbol duration-ios- i) The Cyclic Prefix (CP) for each symbol is 16.67pus long iv) The Time Division Multiplexing (TDM) frame duration is 10 ms Answer the following: How many subcarriers are available? How many symbols can be fit into one TDM frame? a) b) 2. The following table illustrates the operation of an FHSS system for one...
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4. The amplitude modulation signal is given by the following expression and is applied to 75 load. Vam(t) = 10 sin (21fct) - 2.5 cos (1500krt) + 2.5 cos (1450krt) V Determine: a) Modulation index b) The frequency of the carrier and the information signal c) The bandwidth d) The total power e) The transmission power efficiency be ar e 5. One of the inputs to a frequency modulator is a 250 kHz carrier signal with amplitude of...
5.1 Determine the maximum and minimum spectral frequencies received from a stationary GSM transmitter that has a center frequency of exactly 1950.000000 MHz, assuming that the receiver is traveling at speeds of: (a) 1 km/hr; (b) 5 km/hr; (C) 100 km/hr; and (d) 1000 km/hr. 5.5 Given that the coherence bandwidth is approximated by Equation (5-39), show that a flat fading channel occurs when T, 2 10 04. Hint: Note that B is an RF bandwidth, and assume that Ts...
The following code implements some Pulse Width Modulation (PWM) code and interacts with a Curiosity board (usual connections of pushbutton on portC pin4 (logic 0 when pressed), LEDs on portA pins 1, 2 and 5, and portC pin 5, and Potentiometer on portC pin 0 - not all used here). Note the following relationship for the duty cycle 96DutyCycle DutyCycleNumber The Duty cycle (as a percentage of 100) is set by 80 100 PWM_init); // initialisation of PWM module 1...
A genetic engineering average more tomatoes than other varieties. A farmer wants to test the claim on a small sca company claims that it has developed modified tomato plant that full-scale planting. Ten genetically modified tomato plants are grown from seeds along At the season's end, the resulting yields in pound are recorded as below Sample 1 Sample 2 Modified Regular o test the claim on a small scale before committing to a own from seeds along with ten other...
#1. Part a. Which of the following bonds is different than the other? (choose one) (-45, 7.5, 7.5, 7.5, 50) (-18, 3, 3, 3, 21) (-6, 1, 1, 1, 7) (-90, 15, 15, 15, 105) Part b. Which of the folliwng cash flow streams represent bonds that are trading at par? (check all that apply) (-100, 5, 5, 105) (-10, 1, 1, 12) (-20, 1, 1, 21) (-50, 2, 2, 50) Part c. Which of the following must be true...
Please answer me as soon as possible Quiz Question 1 (1 point) Saved What metric is used to measure bandwidth? Question 1 options: a. msec b. bit/sec c. bytes d. number of packets/sec Question 2 (1 point) Saved Ethernet is one of access network technologies. Question 2 options: True False Question 3 (1 point) Saved Consider two hosts, A and B, connected by a single link of rate R bps. Suppose that the two hosts are separated by m meters,...
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Find the least-squares line y P0 + Pzx that best fits the given data 1 Given: The data points (-3, 2), (-2, 5), (0, 5), (2, 2), (3,7) Suppose the errors in measuring the y-values of the last two data points are greater than for the other points. Weight these data points half as much as the rest of the data 1-3 1-2 | [β1 β2 A) y 0.9 1.54x B)...