Compare QAM and ASK in terms of its error performance and data rate. (4Marks) b. binary
Compare QAM and ASK in terms of its error performance and data rate. (4Marks)
b. binary data is transmitted over a channel at a rate of f0 bits/sec. To reduce the transmission bandwidth, it is decided to transmit this data using 16-ary symbol.
- By what factor is the bandwidth reduced? (2Marks)
What will be the increase in the transmitted power when the separation between pulse amplitude is same in both cases. Calculate the difference in maximum power level between ASK and 16-ary symbol in this case.
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Compare QAM and ASK in terms of its error performance and data
rate.
(4Marks)
b. binary
Data are sent over a channel using 8-QAM with the signal constellation shown below. The pulses are rectangular, and a new pulse is generated every T seconds. 2.A Re -2A 2.A -2.4 How many bits of info...
Data are sent over a channel using 8-QAM with the signal constellation shown below. The pulses are rectangular, and a new pulse is generated every T seconds. 2.A Re -2A 2.A -2.4 How many bits of information are conveyed on each pulse transmission? a) b) Find the average power in the transmitted signal g(t) in terms of A
Data are sent over a channel using 8-QAM with the signal constellation shown below. The pulses are rectangular, and a new pulse...
Question 4 (a) A 3,000 bit/second data terminal is connected to a modem with 25% raised-cosine...
Question 4 (a) A 3,000 bit/second data terminal is connected to a modem with 25% raised-cosine roll-off pulse shaping is used. Calculate the transmission bandwidth Bt required at the modem output for each of the following schemes: (0) Binary amplitude-shift keying (ASK) transmission. [2 marks] (ii) Binary frequency-shift keying (FSK) transmission with a frequency deviation of +2,400 Hz around the carrier. [2 marks] (iii) 16-level quadrature amplitude modulation (QAM). [2 marks] (b) FSK transmission is used to transmit 750 bps...
Follow the discussion of binary ASK system in class, derive the symbol error rate of an...
Follow the discussion of binary ASK system in class, derive the symbol error rate of an M-ary ASK system with AWGN channel (noise PSD is No). The baseband symbols used are sm(t)- mA ? (t- a/2), m-0, i, , (M-1). You answer should be first in terms of A, M, and No. Then convert it to an answer in terms of Eb, M, and No
Binary data is to be transmitted using M-ary PAM over the ideal bandlimited passband channel with...
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A bit error probability of PB-10-3 is required for a system with a data rate of...
A bit error probability of PB-10-3 is required for a system with a data rate of 100 kbits/s to be transmitted over an AWGN channel using coherently detected MPSK modulation. The system bandwidth is 5OKHz. Assume that the pulse shape of the system is raised cosine with a roll-off factor of a-1 and that Gray code is used for symbol to bit assignment. a) What is the E/No is required for the specified PB? b) What Es/No is required?
A certain digital communication system uses 4-ary ASK to send data at a rate of 4...
A certain digital communication system uses 4-ary ASK to send data at a rate of 4 Mbits/s with symbol amplitudes -3,-1, +1, +3. If the four symbol amplitude values are equally likely, each with a chance of I 1n 4. a) Determine the peak power. b) Determine the average power. 4. Answer: (a) w,(b) Pave 2.5 w
1) Consider the transmission of digital data 1011 0010. Each bit is transmitted during a time...
1) Consider the transmission of digital data 1011 0010. Each bit is transmitted during a time period of T = 1 msec. What is the data transmission rate in bit/sec? Suppose bit 1 is represented by 5 mV and bit O is represented by O mv. Sketch the baseband waveform with a rectangular pulse to show how the waveform during the transmission of the above bits will look like. Below the baseband waveform sketch (1) binary ASK waveform, (2) binary...
Communication System Solve with ALL steps Please QUESTION 3 Briefly explain the following Analog Pulse Modulation...
Communication System
Solve with ALL steps Please
QUESTION 3 Briefly explain the following Analog Pulse Modulation (APM): (i) Pulse Amplitude Modulation (PAM) Pulse Width Modulation (PWM) (iii) Pulse Position Modulation (PPM) (2 marks) (2 marks) (2 marks) b) There are several digital modulations techniques used to modulate digital signal. For a binary data 10111011, sketch the output waveform if the following modulator is used: Amplitude Shift Keying (ASK) (2 marks) Frequency Shift Keying(FSK) (2 marks) (iii) Phase Shift Keying (PSK)...
Data are sent over a channel using 8-QAM with the signal constellation shown below. The pulses are rectangular, and a new pulse is generated every T seconds. 2.A Re -2A 2.A -2.4 How many bits of information are conveyed on each pulse transmission? a) b) Find the average power in the transmitted signal g(t) in terms of A
Data are sent over a channel using 8-QAM with the signal constellation shown below. The pulses are rectangular, and a new pulse...
Question 4 (a) A 3,000 bit/second data terminal is connected to a modem with 25% raised-cosine roll-off pulse shaping is used. Calculate the transmission bandwidth Bt required at the modem output for each of the following schemes: (0) Binary amplitude-shift keying (ASK) transmission. [2 marks] (ii) Binary frequency-shift keying (FSK) transmission with a frequency deviation of +2,400 Hz around the carrier. [2 marks] (iii) 16-level quadrature amplitude modulation (QAM). [2 marks] (b) FSK transmission is used to transmit 750 bps...
Follow the discussion of binary ASK system in class, derive the symbol error rate of an M-ary ASK system with AWGN channel (noise PSD is No). The baseband symbols used are sm(t)- mA ? (t- a/2), m-0, i, , (M-1). You answer should be first in terms of A, M, and No. Then convert it to an answer in terms of Eb, M, and No
Binary data is to be transmitted using M-ary PAM over the ideal bandlimited passband channel with a bandwidth of B- 4 kHz. We use Raised Cosine (RC) pulses with roll- off factor γ 0.5 so that there is no ISI. If we want to achive a bit rate of 56 kbps, determine the required size of the signal set M, and the symbol rate.
A bit error probability of PB-10-3 is required for a system with a data rate of 100 kbits/s to be transmitted over an AWGN channel using coherently detected MPSK modulation. The system bandwidth is 5OKHz. Assume that the pulse shape of the system is raised cosine with a roll-off factor of a-1 and that Gray code is used for symbol to bit assignment. a) What is the E/No is required for the specified PB? b) What Es/No is required?
A certain digital communication system uses 4-ary ASK to send data at a rate of 4 Mbits/s with symbol amplitudes -3,-1, +1, +3. If the four symbol amplitude values are equally likely, each with a chance of I 1n 4. a) Determine the peak power. b) Determine the average power. 4. Answer: (a) w,(b) Pave 2.5 w
1) Consider the transmission of digital data 1011 0010. Each bit is transmitted during a time period of T = 1 msec. What is the data transmission rate in bit/sec? Suppose bit 1 is represented by 5 mV and bit O is represented by O mv. Sketch the baseband waveform with a rectangular pulse to show how the waveform during the transmission of the above bits will look like. Below the baseband waveform sketch (1) binary ASK waveform, (2) binary...
Communication System
Solve with ALL steps Please
QUESTION 3 Briefly explain the following Analog Pulse Modulation (APM): (i) Pulse Amplitude Modulation (PAM) Pulse Width Modulation (PWM) (iii) Pulse Position Modulation (PPM) (2 marks) (2 marks) (2 marks) b) There are several digital modulations techniques used to modulate digital signal. For a binary data 10111011, sketch the output waveform if the following modulator is used: Amplitude Shift Keying (ASK) (2 marks) Frequency Shift Keying(FSK) (2 marks) (iii) Phase Shift Keying (PSK)...
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