a) What is the value in dB of the free-space loss for a carrier frequency of...
a) What is the value in dB of the free-space loss for a carrier frequency of 900 MHz and a range of 10 km? (b) The effective isotropic radiated power (EIRP) is 1 W. Assume that both the transmitting and receiving antennas are isotropic and that there are no other losses. The noise N0 = N/W = κTo is −174 dBm/Hz. The EIRP is 1 W. The bandwidth is 20 MHz and the bit rate per Hz of bandwidth is 1 bit/Hz. The required operating Eb/N0 is set at 20 dB. What is the link margin of the system?
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a) What is the value in dB of the free-space loss for a carrier
frequency of...
Problem #2: (40 points) Consider the following communication link. Both the transmitter and receivers are properly...
Problem #2: (40 points) Consider the following communication link. Both the transmitter and receivers are properly matched to their respective antennas. Assume that the system nominal temperature is 290 K. A detailed block diagram of the receiver is shown in the figure Determine 1. The effective isotropic radiated power in dBm. 2. The space loss in dB 3. The communication link total losses in dB 4. What would be the received power at the receiver input in dBm? 5. What's...
Complete the following table of link-budget analysis. The system bandwidth is 10 MHz. Show all required calculations. [Hint: Some of the values may not be required for calculating the final link margi...
Complete the following table of link-budget analysis. The system
bandwidth is 10 MHz. Show all required calculations. [Hint: Some of
the values may not be required for calculating the final link
margin. But you are requested to calculate all unknown values on
the second column of the table.]
30 Transmit power (dBW) Transmit circuit losses (dB) Transmit antenna gain (dBi) EIRP (dBW) Path loss (dB) Received isotropic signal power (dBW) Received antenna gain (dBi) Received signal power P (dBW) System...
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...
Consider the communication system shown in the accompany figure, with all components properly matched. If Pt 10 W and...
Consider the communication system shown in the accompany figure, with all components properly matched. If Pt 10 W and f 6 GHz: (a) What is the power density at the receiving antenna (assuming proper alignment of antennas)? (b) What is the received power? (c) If Tsys 1,000 K and the receiver bandwidth is 20 MHz, what is the signal-to-noise ratio in decibels? SVS Gi-20 dB Gr 23 dB 20 km rec Rx Tx
Consider the communication system shown in the...
[Communications Link Problem ]During design of your satellite you discover a readily available antenna that weighs...
[Communications Link Problem ]During design of your satellite
you discover a readily available antenna that weighs the same as in
the original design but has a diameter twice as large. Assuming
this size increase is NOT a problem how much can you reduce the
transmitter output power from the original design of 50 watts
assuming the same data rate, bit error rate, and link margin?
Signal-to-noise power ratio (noise power-N-k7,B where receive system noise temperature): CPG 1 (dimensionless) where PGequivalent...
Calculate the maximum allowable path loss in dB between a radio transmitter and a receiver for...
Calculate the maximum allowable path loss in dB between a radio transmitter and a receiver for the following transmission parameters. Assume the free space propagation loss condition. Transmitter's power: 10 Watt. Minimum required SNR (Signal to Noise Ratio) at the receiver: 5 dB. . Transmission channel bandwidth: 25 kHz. Noise power density No-0.8 x 10-9 W/Hz .Transmitting and receiving antenna gains are 1 dBi and 2 dBi respectively
Problem As a communications system engineer, you are asked to setup a communication system to serve...
Problem 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...
What's the energy of a photon with frequency of 317 Hz? –19 A. 1.62 × 10...
What's the energy of a photon with frequency of 317 Hz? –19 A. 1.62 × 10 W –19 B. 2.88 × 10 W –19 C. 1.36 × 10 W –19 D. 2.10 × 10 W 2. You need to splice two fibers. The transmitting core has a diameter of 75 μm, and the receiving core has a diameter of 62.5 μm. Calculate the power loss due to core diameter mismatch in dB. A. 3.06 dB B. 3.57 dB C. 1.25...
Problem 6 a) State two approaches of avoiding collision in a carrier sense multiple access with...
Problem 6 a) State two approaches of avoiding collision in a carrier sense multiple access with collision avoidance based network. Give two reasons why collisions cannot be eliminated in a network whose nodes perform carrier sensing prior to transmitting a packet b) For the slotted ALOHA protocol used on the random access channel in cellular systems, show that the theoretical maximum throughput, Smax = '36%. Hint: For slotted ALOHA, the throughput S is given by: S=Ge-, where G is the...
3. The quality of a received signal is often characterized by the signal-to-noise-ratio (SNR), which is...
3. The quality of a received signal is often characterized by the signal-to-noise-ratio (SNR), which is defined as SNR 10 log As you might expect from this Signal power in watts KTB definition, the unit of SNR is decibels (dB). The term in the denominator is the noise power, and it is generally specified as an effective noise temperature T multiplied by the product of Boltzmann's constant (K) and the bandwidth (B) of the signal in Hz. Generally we like...
Problem #2: (40 points) Consider the following communication link. Both the transmitter and receivers are properly matched to their respective antennas. Assume that the system nominal temperature is 290 K. A detailed block diagram of the receiver is shown in the figure Determine 1. The effective isotropic radiated power in dBm. 2. The space loss in dB 3. The communication link total losses in dB 4. What would be the received power at the receiver input in dBm? 5. What's...
Complete the following table of link-budget analysis. The system
bandwidth is 10 MHz. Show all required calculations. [Hint: Some of
the values may not be required for calculating the final link
margin. But you are requested to calculate all unknown values on
the second column of the table.]
30 Transmit power (dBW) Transmit circuit losses (dB) Transmit antenna gain (dBi) EIRP (dBW) Path loss (dB) Received isotropic signal power (dBW) Received antenna gain (dBi) Received signal power P (dBW) System...
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...
Consider the communication system shown in the accompany figure, with all components properly matched. If Pt 10 W and f 6 GHz: (a) What is the power density at the receiving antenna (assuming proper alignment of antennas)? (b) What is the received power? (c) If Tsys 1,000 K and the receiver bandwidth is 20 MHz, what is the signal-to-noise ratio in decibels? SVS Gi-20 dB Gr 23 dB 20 km rec Rx Tx
Consider the communication system shown in the...
[Communications Link Problem ]During design of your satellite
you discover a readily available antenna that weighs the same as in
the original design but has a diameter twice as large. Assuming
this size increase is NOT a problem how much can you reduce the
transmitter output power from the original design of 50 watts
assuming the same data rate, bit error rate, and link margin?
Signal-to-noise power ratio (noise power-N-k7,B where receive system noise temperature): CPG 1 (dimensionless) where PGequivalent...
Calculate the maximum allowable path loss in dB between a radio transmitter and a receiver for the following transmission parameters. Assume the free space propagation loss condition. Transmitter's power: 10 Watt. Minimum required SNR (Signal to Noise Ratio) at the receiver: 5 dB. . Transmission channel bandwidth: 25 kHz. Noise power density No-0.8 x 10-9 W/Hz .Transmitting and receiving antenna gains are 1 dBi and 2 dBi respectively
Problem 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...
Problem 6 a) State two approaches of avoiding collision in a carrier sense multiple access with collision avoidance based network. Give two reasons why collisions cannot be eliminated in a network whose nodes perform carrier sensing prior to transmitting a packet b) For the slotted ALOHA protocol used on the random access channel in cellular systems, show that the theoretical maximum throughput, Smax = '36%. Hint: For slotted ALOHA, the throughput S is given by: S=Ge-, where G is the...
3. The quality of a received signal is often characterized by the signal-to-noise-ratio (SNR), which is defined as SNR 10 log As you might expect from this Signal power in watts KTB definition, the unit of SNR is decibels (dB). The term in the denominator is the noise power, and it is generally specified as an effective noise temperature T multiplied by the product of Boltzmann's constant (K) and the bandwidth (B) of the signal in Hz. Generally we like...
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