Consider the transmission of data via PAM over a channel that has a bandwidth of 1500 Hz. Using s...
Consider the transmission of data via PAM over a channel that has a bandwidth of 1500 Hz. Using square root raised cosine filter at transmitter and receiver, show how the symbol rate varies as a function of the excess bandwidth. In particular, determine the symbol rate for excess bandwidths of 25%, 50%, 75%, and 100%.
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Consider the transmission of data via PAM over a channel that has a bandwidth of 1500 Hz. Using s...
Binary data is to be transmitted using M-ary PAM over the ideal bandlimited passband channel with...
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.
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 supp...
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...
5.1 Determine the maximum and minimum spectral frequencies received from a stationary GSM transmitter that has...
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...
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.
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...
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...
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