The telephone system transmits voice signals using a bandwidth of up to _______________, while the human...
The telephone system transmits voice signals using a bandwidth of up to _______________, while the human ear can hear signals up to _______________. 10 kHz, 2 kHz 30 kHz, 20 kHz 30 kHz, 2 kHz 1 kHz, 20 kH
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The telephone system transmits voice signals using a bandwidth
of up to _______________, while the human...
Problem 3) Design a Double-Side-Band (DSB) based transmitter and receiver (find minimum bandwidth requirement and draw the block diagrams) to send and fully recover 10 human-voice type signals wi...
Problem 3) Design a Double-Side-Band (DSB) based transmitter and receiver (find minimum bandwidth requirement and draw the block diagrams) to send and fully recover 10 human-voice type signals with each signal having the bandwidth of 5kHz. Note that the receiver needs at least 3kHz of separation between each DSB signal for full recovery and you are limited to use AM radio frequency spectrum of 540 to 1600 kHz.
Problem 3) Design a Double-Side-Band (DSB) based transmitter and receiver (find minimum...
Q1 Marks: 40 A digital communication system has 96 analog telephone signals, each band limited to...
Q1 Marks: 40 A digital communication system has 96 analog telephone signals, each band limited to 4 kHz. The telephone signals are converted to digital binary data using Pulse Code Modulator (PCM) system, which use a uniform quantiser followed by an 8-bit encoder. The system uses two bits for synchronization. The digital binary data are then time-division multiplexed and transmitted over a single communication channel. Analyse the communication system by considering the following principles: (i) Determine the number of quantization...
Consider a voice-over-IP system that transmits 64Kbits/s PCM voice using RTP/UDP/IP with a packetization interval of...
Consider a voice-over-IP system that transmits 64Kbits/s PCM voice using RTP/UDP/IP with a packetization interval of 20ms. How many such streams can be transmitted over a 10Mbps Ethernet link assuming the link can be loaded up to 80%? What is the maximum number of streams if packetization interval of 10ms was used? If these streams with a packetization interval of 20ms were transmitted to a mobile user using Mobile IP, what is the maximum number of streams over the same...
A simple telephone system consists of a single toll office and two end offices, each connected...
A simple telephone system consists of a single toll office and two end offices, each connected to the toll office with N telephones. The wires between each end office and the toll office has 1 MHz capacity in each direction and each active telephone call requires 5 kHz bandwidth. 10% of the calls are long distance (calls that do not pass through the toll office are ‘local calls’, e.g. phone calls within the network, while calls that do pass through...
Please help me these questions of "Principles of Communications" subject. Thanks in advance! Problem 2: PCM syst...
Please help me these questions of "Principles of Communications"
subject. Thanks in advance!
Problem 2: PCM system (40 points)coo h Consider a polar binary PCM system with number of bits per sample v 8 and the 4 KHz. Assumed that the channel is AWGN. voice bandwidth a) Assumed that one voice signal is transmitted using above PCM system, find the bit rate at the output of PCM transmitter and the minimum channel bandwidth. b) Assumed that 24 voice signals are...
Tal communication system transmits binary PSK data using pulses pit) and -p). sin(x/T) (mV) for t...
tal communication system transmits binary PSK data using pulses pit) and -p). sin(x/T) (mV) for t in [O,T) 2 of 2 and 0 otherwise (shown below). Suppose thai 10+last two digits of your WSU access ID number, i.e. if your last three digits of your ID number is 12, then A-22 (mV). T-10 (. and the AGWN power spectral density No/2-10- WH 0 (a) (10 pts) Find the bit energy-to-noise ratio Eb/No (b) (4 pts) Find the probability of error...
Data communication Qs A signal has a bandwidth frequency of 150 Hz and the highest frequency...
Data communication Qs
A signal has a bandwidth frequency of 150 Hz and the highest frequency is 170 Hz. What is the lowest frequency of the signal? (just put the whole number. No decimal values. No units next to the number) A periodic signal completes one cycle in 0.04 second. What is the frequency? A sine wave completes 7200 cycles in one hour. What are its frequency and period? I: 50 Hz, II: 10 Hz, 0.1 seconds I: 25 Hz,...
A transmitter transmits 10 watts into free space, using an antenna with a gain of 20...
A transmitter transmits 10 watts into free space, using an antenna with a gain of 20 dB. 20 km away, a receiver, with an antenna of gain 2 dB, picks up the signal. The frequency is 300 MHz. In the absence of any reflections or obstacles, what is the maximum signal that the receiver can pick up? Express the answer in dBμW
Telephone service providers are now offering ADSL service to home using the existing twisted-pair telephone wires....
Telephone service providers are now offering ADSL service to home using the existing twisted-pair telephone wires. The signal can be carried up to a maximum of 1-MHz baseband with an S/N (signal power/noise power in ratio) of 30 dB. S/N in decibels (dB) is defined as 10 log10(signal power/noise power). Using MPEG-2 compression techniques, (a) a non-sports video channel can be broadcast at 3-Mbps data rate and (b) a sports video channel at 6 Mbps. Shannon
As a communications system engineer, you are asked to setup a communication system to serve a distance of 100m using an access point transmitting signals with power 20dBm at the frequency 2.4GHz. The...
As a communications system engineer, you are asked to setup a communication system to serve a distance of 100m using an access point transmitting signals with power 20dBm at the frequency 2.4GHz. The antennas used at the transmitter and receiver side have the gains shown in the picture below. The coaxial cables used to interface the systems to the antennas have losses shown in the picture below What is the received signal power in dBm at the input of the...
Problem 3) Design a Double-Side-Band (DSB) based transmitter and receiver (find minimum bandwidth requirement and draw the block diagrams) to send and fully recover 10 human-voice type signals with each signal having the bandwidth of 5kHz. Note that the receiver needs at least 3kHz of separation between each DSB signal for full recovery and you are limited to use AM radio frequency spectrum of 540 to 1600 kHz.
Problem 3) Design a Double-Side-Band (DSB) based transmitter and receiver (find minimum...
Q1 Marks: 40 A digital communication system has 96 analog telephone signals, each band limited to 4 kHz. The telephone signals are converted to digital binary data using Pulse Code Modulator (PCM) system, which use a uniform quantiser followed by an 8-bit encoder. The system uses two bits for synchronization. The digital binary data are then time-division multiplexed and transmitted over a single communication channel. Analyse the communication system by considering the following principles: (i) Determine the number of quantization...
Please help me these questions of "Principles of Communications"
subject. Thanks in advance!
Problem 2: PCM system (40 points)coo h Consider a polar binary PCM system with number of bits per sample v 8 and the 4 KHz. Assumed that the channel is AWGN. voice bandwidth a) Assumed that one voice signal is transmitted using above PCM system, find the bit rate at the output of PCM transmitter and the minimum channel bandwidth. b) Assumed that 24 voice signals are...
tal communication system transmits binary PSK data using pulses pit) and -p). sin(x/T) (mV) for t in [O,T) 2 of 2 and 0 otherwise (shown below). Suppose thai 10+last two digits of your WSU access ID number, i.e. if your last three digits of your ID number is 12, then A-22 (mV). T-10 (. and the AGWN power spectral density No/2-10- WH 0 (a) (10 pts) Find the bit energy-to-noise ratio Eb/No (b) (4 pts) Find the probability of error...
Data communication Qs
A signal has a bandwidth frequency of 150 Hz and the highest frequency is 170 Hz. What is the lowest frequency of the signal? (just put the whole number. No decimal values. No units next to the number) A periodic signal completes one cycle in 0.04 second. What is the frequency? A sine wave completes 7200 cycles in one hour. What are its frequency and period? I: 50 Hz, II: 10 Hz, 0.1 seconds I: 25 Hz,...
As a communications system engineer, you are asked to setup a communication system to serve a distance of 100m using an access point transmitting signals with power 20dBm at the frequency 2.4GHz. The antennas used at the transmitter and receiver side have the gains shown in the picture below. The coaxial cables used to interface the systems to the antennas have losses shown in the picture below What is the received signal power in dBm at the input of the...
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