For an Orthogonal frequency-division multiplexing data transmission with a cyclic prefix of 20 and bandwidth of 30 MHz, there are 100 carriers used for data transmission, the outer 20 carriers are zeroed, and 8 carriers for channel estimation and synchronization   a) Our task is to find the bandwidth of each subcarrier. Answer: Answer Khz   b) Calculate delay spread in seconds Answer: Answer Seconds

Q: Define Frequency Division Multiplexing

A: Multiple data signals are merged for simultaneous transmission through a common communication link…

Q: Assume that the data is transferred using 16PAM (16-level pulse amplitude modulation). How many bits…

A: ANSWER : The number of possible pulse amplitudes in analog PAM is theoretically infinite. Digital…

Q: I A channel has a frequency range between 3 KHz and 14 KHz. The SNR in this channel is 25 dB. Find…

A:

Q: 3. Analyse the modulation diagram given below and develop the equations of the modulated signals for…

A: Answer:

Q: B) Draw and find the BASK signal if maximum carrier amplitude is 14V and f.=0.1MHz and the input…

A:

Q: Synchronous and asynchronous transmission (presentation, comparison). Considering a baseband signal…

A: The ratio between the data rates (D1/D2) of two transmitted signals occupying the same bandwidth,…

Q: Types of modulation in which a parameter of a sine-wave carrier signal is varied by a digitalsignal…

A: Type of Modulation : It is the transimitting the information from periodic waveform(carrier signal)…

Q: Four channels, each with a 150-kHz bandwidth, are to be multiplexed together. What is the minimum…

A: Bandwidth is a range of frequencies that a system can transmit data. It is measured in Hertz unit.

Q: distance between the two stations is 10000Km. There are two intermediate switches which A 100MB of…

A: The answer is given below.

Q: Five Channels each with a 100 KHz bandwidth are to be multiplexed together using Frequncy division…

A: Answer is.  The minimum bandwidth is 540 Khz.

Q: 4. There are four sources, each creating 500 characters per second. If the interleaved unit is a…

A: Data rate :  Data Rate is the  as the amount of data transmitted during a specified time period over…

Q: Q3/ Given that the bit sequence [1 0 1 1 0 0 1 0] is to be transmitted. Draw the resulting waveform…

A: Draw the sequence of [1 0 1 1 0 0 1 0] 1) Unipolar RZ 2) Polar RZ 3) AMI

Q: We need to transmit 100 digitized voice channels using a pass-band channel of 20 KHz. What should be…

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Q: In a multi mode optical fiber, the propagation of beams is almost horizontal Select one: O True O…

A: Multimode optical fibre uses larger core .

Q: For the following stream of digital signal which is being transmitted by bit rate 5 Kbps:…

A: a. Draw waveform for all line code is self synchronized or not.

Q: H.W: If the bandwidth of PAM system not exceed 4kHz is used to transmit voice signal sampled at…

A: PAM (Pulse Amplitude Modulation) involves varying the amplitude of pulses in accordance with…

Q: A 5 kHz channel transmits a signal experiencing SNR of 31. What is the maximum Bit Rate of the…

A: It is used to determine the maximum bit rate of the channel given the bandwidth of the channel and…

Q: The Asynchronous Transfer Mode (ATM) uses an 8-bit CRC for error detection. The 8 bit CRC uses the…

A: Asynchronous transfer mode (ATM) is a transfer mode for switching and transmission that can…

Q: The multiplexing technique that includes the use of several light signals is: Select one: A. WDM…

A: Given Question: To choose the correct option.

Q: the bit model estimate the number of bit operations for x = yn. Input is y and n and output is x.…

A: Program Approach:   Note: Since you have not provided a language name to write the code. So, I am…

Q: 2. To convert an analog signal, with bandwidth 2 MHz, to digital signal the sampling frequency Is…

A: We need to find the sampling frequency.

Q: Problem 3 The modulating signal m(t) = 4 cos(200t) cos(400nt) is multiplied by the carrier c(t) =…

A: Since you have asked multiple question ,we will slove the first question for you .If you want any…

Q: 12

A: Lets see the solution.

Q: we use synchronous TDM and combine 20 digital sources, each of 100 Kbps. what will be the minimum…

A: It is defined as a multiplexing technique by which multiple data signals can be transmitted over a…

Q: Five signal channels are sampled at the same rate and time- multiplexed. The multiplexed signal is…

A:

Q: 3- Use the time-shifting property (Eq. number 2 in Fourier transform pairs table) to show that if…

A: Answer is given below-

Q: A conventional amplitude modulator (AM), Vpc 5 volt is an offset voltage and c(t) is the carrier…

A: m = (Vmax - Vmin)/(Vmax + Vmin) where Vmax and Vmin are the maximum and minimum amplitudes of the…

Q: In data communications, we use periodic analog signals and a. Periodic digital signals b. Non…

A: In data communications, we commonly use periodic analog signals and non-periodic digital signals.

Q: If a carrier signal v,(7) = 20sin(25000r) Volts is amplitude modr- 1, () = 4 sin (272001)–6…

A: Bandwidth of AM signal is  2*Fm Fm is the maximum message signal frequency frequency plot and…

Q: Q3: Four voice signals have the total (BW) is 36 KHz, design FDM to transmit them within equal…

A: The total BW is 36 KHz.  Each signal will have BW equal to 36/4= 9KHz.