In a typical baseband communication system model, what factor / reason is responsible(а)for spreading of transmitted pulses that leads to ISI?(b) For an M-ary PAM, where M = 256, what is the number of bits that can be transmittedwithout any ISI?(c) If the system transfer function H(f), for a typical PCM communication system isrectangular, |f| <½r , explain with a suitable time domain diagram, how the ISI is27avoided.(d)What is the outcome of increasing the roll off factor of a raised cosine filter onovercoming the problem of ISI?

"According to the Company's policy we will solve only the first three parts of the question". a) In…

(a) In a typical baseband communication system model, what factor / reason is responsible for spreading of transmitted pulses that leads to ISI? For an M-ary PAM, where M = 256, what is the number of bits that can be transmitted 5 (b) without any ISI? If the system transfer function H(f), for a typical PCM communication system is (c) rectangular, |f| <½T , explain with a suitable time domain diagram, how the ISI is avoided. (d) What is the outcome of increasing the roll off factor of a raised cosine filter on (d) overcoming the problem of ISI?

(a) In a typical baseband communication system model, what factor / reason is responsible for spreading of transmitted pulses that leads to ISI? For an M-ary PAM, where M = 256, what is the number of bits that can be transmitted 5 (b) without any ISI? If the system transfer function H(f), for a typical PCM communication system is (c) rectangular, |f| <½T , explain with a suitable time domain diagram, how the ISI is avoided. (d) What is the outcome of increasing the roll off factor of a raised cosine filter on (d) overcoming the problem of ISI?

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

1.Consider a wireless signal with a carrier frequency of fc = 1800 MHz, which is transmitted over a wireless channel that results in L= 4 multipath components at delays of 227, 463, 942, 1783 ns and corresponding to received signal amplitudes of 1, 0.8, 0.6, 0.5 respectively. Derive the expression for the received baseband signal y b (t) if the transmitted baseband signal is sb(t). Also, compute the channel coefficient h for this system for the scenario that the signals b (t) is narrowband.
1. Select the correct statement(s) regarding amplitude modulation (AM). a. If the AM Index is greater than 1 (i.e., µAM>1), then over modulation occurs leading to signal distortion b. With AM, the message is captured as amplitude changes to the carrier’s amplitude. c. The AM modulated carrier bandwidth is dependent upon the baseband signal’s frequency bandwidth d. All of the above are correct 2. What is true about the frequency bandwidth of a modulated electrical or electromagnetic (EM) signal? a. signal bandwidth is only determined by the frequency of the unmodulated carrier wave b. modulation technique and the amount of information transmitted determines the signal’s bandwidth c. only the baseband signal determines frequency bandwidth; i.e., modulation technique has no impact on bandwidth d. a and c are true 3.Regarding carrier modulation, identify the carrier signal variable(s)…
An SSB signal is generated by modulating a 10-MHz carrier with a 1-KHz sine tone. At the receiver, the carrier is reinserted during demodulation, but its frequency is 10.00015 MHz rather than exactly 10-MHz. How does this affect the recovered signal? How would a voice signal be affected by a carrier that is not exactly the same as the original?
A communication system has a bandwidth of 150 MHz and an SNR (dB) of 35 dB. a. What is the theoretical maximum data rate (C) on this channel?b. How many signal levels (symbols) do we need to achieve this data rate?c. If we want to increase the maximum data rate to 10 Gbps, what SNR (dB) do we need on this medium?
5. The following data is available: fc= carrier frequency = 750kHz, Ac= maximum amplitude of the unmodulated carrier = 10V fm= modulator frequency = 300Hz-8kHz modulation index m=0.5 a) What is the frequency of the upper sideband? b) What is the frequency of the lower sideband? c) What is the amplitude of the modulating signal? d) What is the maximum amplitude of the envelope of the modulated signal? e) What is the minimum amplitude of the envelope of the modulated signal? f) What is the bandwidth of the modulated wave? g) Write an expression for the modulated wave
Let the center frequency of the wireless link be 901 MHz.(a) If the distance between Tx and Rx radios and reflectors around them is up to 10m, what is the maximum propagation delay tmax?(b) Let Rb = 5000 bits/s (chips/s). Under these conditions, are reflection paths resolvable?
Consider a communication channel with a spectrum between 5 MHz and 7 MHz and SNR of 30 dB. Calculate the theoretical maximum data rate according to Shannon's formula. İf we assume we can achieve this limit, how many signaling levels are required based on Nyquist's formula ?
Consider a fast hopping binary ASK system. The AWGN spectrum equals Sn (f) = 10-6 and the binary signal amplitudes are 0 and 2 V, respectively. The ASK uses a data rate of 100 kbit/s and is detected noncoherently. The ASK requires 100 kHz bandwidth for transmission. However, the frequency hopping is over 12 equal ASK bands with bandwidth totaling 1.2 MHz. The partial band jammer can generate a strong Gaussian noise-like interference with total power of 27 dBm. (a) If a partial band jammer randomly jams one of the 12 FH channels, derive the BER of the FH-ASK if the ASK signal hops 6 bands per bit period. (b) If a partial band jammer randomly jams two of the 12 FH channels, derive the BER of the FH-ASK if the ASK signal hops 6 bands per bit period. (c) If a partial band jammer jams all 12 FH channels, derive the BER of the FH-ASK if the ASK signal hops 6 bands per bit period.
Consider an AWGN channel with bandwidth 50 MHz, received signal power 10 mW, and noise density No (Noise Power/Bandwidth) = 10−9 W/Hz. (Use two decimal places) (a) What is the information capacity (Mbps) in the system? (b) By doubling the received power, What is the information capacity (Mbps) in the system? (c) How much does the capacity (Mbps) by doubling the channel bandwidth?
For double sideband (DSB) signal f) What is the difficulty of synchronous demodulation (coherent detection)? g) Compare between the ordinary amplitude modulation (AM), and double sideband (DSB) modulation in terms of transmitted power, complexity of demodulation, receiver cost, and bandwidth
What is the significance of the Shannon-Hartley theorem in the context of wireless communication?
If a communication bandwidth of Bc= 20,000 Hz is available how many bits, n, per signal clement are required for a PCM signal of R=300,000 bps to be transmitted assuming a perfect noiseless channel?