Consider a channel with a bandwidth of 1MHz with SNR of 35 dB 1) what is...
Consider a channel with a bandwidth of 1MHz with SNR of 35 dB
1) what is the maximum bit rate to achieve any arbitrarily small errors
2) what will be the band rte if 16QAM is used?
3) what will be the band rate if 1024 QAM is used?
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Consider a channel with a bandwidth of 1MHz with SNR of 35
dB
1) what is...
Determine the bandwidth for a communication channel that has an SNR of 35 dB and capable...
Determine the bandwidth for a communication channel that has an SNR of 35 dB and capable of transmitting the data rate at 37.2 Kbps.
Consider a noisy AWGN (Additive White Gaussian Noise) communication channel with a bandwidth of 12 KHz....
Consider a noisy AWGN (Additive White Gaussian Noise) communication channel with a bandwidth of 12 KHz. Is it possible to transmit reliably over this channel at a bit rate of 150 Kbps with an SNR (Signal to Noise Ratio) of 35 dB? Justify your answer
Provided is a channel of 10 MHz bandwidth to be shared by 5 users. It is...
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)...
Consider a point-to-point channel. Assume the bandwidth of the channel is 5 MHz and the signal-to-noise...
Consider a point-to-point channel. Assume the bandwidth of the channel is 5 MHz and the signal-to-noise ratio of this channel is 24 dB. a) What is the capacity of this channel? b) How many signal levels are required to achieve the above maximum transmission rate?
Assume the channel bandwidth is 3100 Hz and the maximum data rate is 35 kb/s. To...
Assume the channel bandwidth is 3100 Hz and the maximum data rate is 35 kb/s. To improve the maximum data rate by 60%, how many times should the signal-to-noise-rate (SNR) increase? Based on the improved maximum data rate and SNR, if the SNR further increases by 10 times, can the maximum data rate further increase by 20%?
4. (5 pts) Suppose that the SNR at the receiver of a communication system is-10 dB....
4. (5 pts) Suppose that the SNR at the receiver of a communication system is-10 dB. If the noise power at the receiver is 5000 × 10-9 W, calculate the signal power (in μW) at the receiver. 5. (5 pts) Assume we have two communication systems, A and B. Suppose SNRA-5, SNRB10 and BA 600 kHz. What is the required channel bandwidth for system B in order to achieve the same maximum transmission rate as system A?
(a) Consider a digital communication system with a frequency band ranging from 3 MHz to 4...
(a) Consider a digital communication system with a frequency band ranging from 3 MHz to 4 MHz. It is required to operate without unacceptable bit errors for which let the required SNR min = 24dB. Compute the channel transmission capacity for this minimum value of SNR. (b) Let us consider a Nyquist channel capacity formula C = 2B log2 (M) (in bits/second) where M is the number of signal levels per second, and B is the bandwidth assumed in part...
3) A wireless receiver needs to meet the sensitivity requirement of -90 dBm. The channel bandwidth...
3) A wireless receiver needs to meet the sensitivity requirement of -90 dBm. The channel bandwidth is 1 MHz. The data rate is 0.5 Mbps. The antenna temperature is 290 K. (Please show all steps to receive full credits) a) If Eb/No requirement is 10 dB. What is the SNR requirement in dB? (10 pts) b) [independent of (a)] If SNR requirement is 10 dB, what is the NF requirement in dB? (15 pts)
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...
A wireless LAN channels used by Wi-Fi 802.11n in the US for the 2.4GHz ISM band...
A wireless LAN channels used by Wi-Fi 802.11n in the US for the 2.4GHz ISM band in which each channel has a bandwidth of 40 MHz. Suppose a channel's signal-to-noise ratio SNR = 350. Answer each of the questions: 1) Calculate the channel's signal-to-noise ratio in decibels, SNR db. 2) Calculate the (maximum) channel capacity according to the Shannon Capacity Formula, assuming the channel's signal to noise ratio SNR = 350.
Assume the channel bandwidth is 3100 Hz and the maximum data rate is 35 kb/s. To improve the maximum data rate by 60%, how many times should the signal-to-noise-rate (SNR) increase? Based on the improved maximum data rate and SNR, if the SNR further increases by 10 times, can the maximum data rate further increase by 20%?
4. (5 pts) Suppose that the SNR at the receiver of a communication system is-10 dB. If the noise power at the receiver is 5000 × 10-9 W, calculate the signal power (in μW) at the receiver. 5. (5 pts) Assume we have two communication systems, A and B. Suppose SNRA-5, SNRB10 and BA 600 kHz. What is the required channel bandwidth for system B in order to achieve the same maximum transmission rate as system A?
(a) Consider a digital communication system with a frequency band ranging from 3 MHz to 4 MHz. It is required to operate without unacceptable bit errors for which let the required SNR min = 24dB. Compute the channel transmission capacity for this minimum value of SNR. (b) Let us consider a Nyquist channel capacity formula C = 2B log2 (M) (in bits/second) where M is the number of signal levels per second, and B is the bandwidth assumed in part...
3) A wireless receiver needs to meet the sensitivity requirement of -90 dBm. The channel bandwidth is 1 MHz. The data rate is 0.5 Mbps. The antenna temperature is 290 K. (Please show all steps to receive full credits) a) If Eb/No requirement is 10 dB. What is the SNR requirement in dB? (10 pts) b) [independent of (a)] If SNR requirement is 10 dB, what is the NF requirement in dB? (15 pts)
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...
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