Solve the multi-task problem: The LEO cellular satellite communication system requires the forward link (from satellite...
Solve the multi-task problem:
The LEO cellular satellite communication system requires the forward link (from satellite to the earth mobile) signal-to-noise ratio (SNR) in the output of the earth station receiver to be 17dB. The link has the following specifications:
Operation frequency f = 6 GHz
Receiver antenna gain (earth station), Gr = 0 dB
Transmitter antenna gain (satellite), Gt = 3 dB
Distance to satellite, d = 1000 km
Bandwidth of the receiver, B = 2 MHz
Noise figure of the receiver, F= 10
System loss Lsys = 0 dB
Q1: Find the actual noise power, N,in dB
Q2. Find the received power, Pr, indB
Q3. Find the path lost, PL(1000 km), in dB
Q4. Find the required satellite transmitted power (Pt) in dB to maintain the required SNR at the receiver.
Homework Answers
Add Answer to:
Solve the multi-task problem:
The LEO cellular satellite communication system requires the
forward link (from satellite...
Consider the satellite relay link with the following parameters. Downlink EIRP of the satellite: 55 dBW...
Consider the satellite relay link with the following parameters. Downlink EIRP of the satellite: 55 dBW Transmit frequency: Receiver noise temperature:700 K Receiver antenna gain Transmitter- receiver distance: 41,000 km System bandwidth: Total system losses (margin): 3 dB 2 GHz 0 dB 50 kHz (a) Find the received signal power in dBW (b) Find the receiver noise level in dBW (c) Calculate the signal-to-noise ratio at the receiver in dB
A gsm communication system has the following properties: R=range=2km. P=base station transmitter output power=10W. Gi=base station...
A gsm communication system has the following properties: R=range=2km. P=base station transmitter output power=10W. Gi=base station transmitter antenna gain=12dB. Gr=phone (receiver) antenna gain=3dB. f=frequency of the waves=2GHz. a-) Find the received power at the phone antenna (P.)? (15 points) b-) Find the SNR) in dB at the receiver (phone), if the noise power is N=-90dB ? Is this a "good","average", or "barely acceptable" SNR ? (10 points)
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...
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...
I NEED HELP IN THIS QUESTION ASAP PLEASE A Transmitter provides 15 W to an antenna...
I NEED HELP IN THIS QUESTION ASAP PLEASE
A Transmitter provides 15 W to an antenna having 12 dB gain. The receiver Antenna has a gain of 3 dB and the receiver bandwidth BW is 30 kHz. If the receiver system noise figure F = 8 dB and the carrier frequency is 1800 MHz, Determine the maximum T-R separation that will ensure that a SNR of 20 dB is provided for 95% of the time. Assume n=4, 0 = 8...
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...
A broadcaster transmits its program over a geosynchronous satellite. The uplink and downlink carrier frequencies are...
A broadcaster transmits its program over a geosynchronous satellite. The uplink and downlink carrier frequencies are 14 GHz and 12 GHz, respectively. The distance from the satellite to the gateway and the the receiver can both be approximated as 36,000 km. Assume that the uplink (the Gateway) antenna has a gain of 40 dBi, the receiver on the satellite has an antenna with a gain of 20 dBi and a noise temperature of 3500 K. The video encoder’s rate is...
6. A 10-GHz line-of-sight microwave communication link consists of two lossless parabolic dish antennas, each has...
6. A 10-GHz line-of-sight microwave communication link consists of two lossless parabolic dish antennas, each has 40 dB gain. If the receiver antenna requires 3 nW of receive power for good reception and the distance between the antennas is 35 km, how much power (in both mW and dBm) should be transmitted?
6. A 10-GHz line-of-sight microwave communication link consists of two lossless parabolic dish antennas, each has 40 dB gain. If the receiver antenna requires 3 nW of receive...
QUESTION 12, 13, 14???? In 3.14, can write Gt and Gr directly in the answer, or...
QUESTION 12, 13, 14????
In 3.14, can write Gt and Gr directly in the answer, or assume
Gt and Gr =1 (specify hypothesis)
P3.8. Path loss, fading, and delay spread are the three most important radio propagation issues. Explain why those issues are important in a cellular system. What is the difference between fast fading and slow fading? Р3.9. How is radio propagation on land different from that in free space? What does a small delay spread indicate about the...
Designing a High speed Wireless Data Link Line of Sight Link Budget Analysis Several major factors that can impact...
Designing a High speed Wireless Data Link Line of Sight Link Budget Analysis Several major factors that can impact the performance of a radio system are Available/permitted output power e Bandwidth, . Receiver sensitivity Antenna gains In this case study, the students will be required to calculate the link budget for a LOS Wireless link. Read through the following to understand some of the aspects and elements that need to be considered when calculating a Link Budget. If the estimated/calculated...
Consider the satellite relay link with the following parameters. Downlink EIRP of the satellite: 55 dBW Transmit frequency: Receiver noise temperature:700 K Receiver antenna gain Transmitter- receiver distance: 41,000 km System bandwidth: Total system losses (margin): 3 dB 2 GHz 0 dB 50 kHz (a) Find the received signal power in dBW (b) Find the receiver noise level in dBW (c) Calculate the signal-to-noise ratio at the receiver in dB
A gsm communication system has the following properties: R=range=2km. P=base station transmitter output power=10W. Gi=base station transmitter antenna gain=12dB. Gr=phone (receiver) antenna gain=3dB. f=frequency of the waves=2GHz. a-) Find the received power at the phone antenna (P.)? (15 points) b-) Find the SNR) in dB at the receiver (phone), if the noise power is N=-90dB ? Is this a "good","average", or "barely acceptable" SNR ? (10 points)
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...
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...
I NEED HELP IN THIS QUESTION ASAP PLEASE
A Transmitter provides 15 W to an antenna having 12 dB gain. The receiver Antenna has a gain of 3 dB and the receiver bandwidth BW is 30 kHz. If the receiver system noise figure F = 8 dB and the carrier frequency is 1800 MHz, Determine the maximum T-R separation that will ensure that a SNR of 20 dB is provided for 95% of the time. Assume n=4, 0 = 8...
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...
6. A 10-GHz line-of-sight microwave communication link consists of two lossless parabolic dish antennas, each has 40 dB gain. If the receiver antenna requires 3 nW of receive power for good reception and the distance between the antennas is 35 km, how much power (in both mW and dBm) should be transmitted?
6. A 10-GHz line-of-sight microwave communication link consists of two lossless parabolic dish antennas, each has 40 dB gain. If the receiver antenna requires 3 nW of receive...
QUESTION 12, 13, 14????
In 3.14, can write Gt and Gr directly in the answer, or assume
Gt and Gr =1 (specify hypothesis)
P3.8. Path loss, fading, and delay spread are the three most important radio propagation issues. Explain why those issues are important in a cellular system. What is the difference between fast fading and slow fading? Р3.9. How is radio propagation on land different from that in free space? What does a small delay spread indicate about the...
Designing a High speed Wireless Data Link Line of Sight Link Budget Analysis Several major factors that can impact the performance of a radio system are Available/permitted output power e Bandwidth, . Receiver sensitivity Antenna gains In this case study, the students will be required to calculate the link budget for a LOS Wireless link. Read through the following to understand some of the aspects and elements that need to be considered when calculating a Link Budget. If the estimated/calculated...
Most questions answered within 3 hours.
-
what's the danger in the fact that the market value of a stock
is based on...
asked 1 minute ago -
Describe how do you feel about the post below and
why?
Listening to the podcast reaffirmed...
asked 10 minutes ago -
To start an avalanche on a mountain slope, an artillery shell is
fired with an initial...
asked 23 minutes ago -
The population of bacteria in a culture can be modeled by P left
parenthesis t right...
asked 27 minutes ago -
Which factors can prevent permanent fixation of an allele (i.e.
maintain genetic diversity)? Hint: You're going...
asked 29 minutes ago -
Compare a two-year bond with two successive one-year bonds in a
situation in which an investor...
asked 50 minutes ago -
Chapter 6
Search the internet and find a newspaper example of a price
ceiling, price floor...
asked 46 minutes ago -
Sarah Bates, calendar year taxpayer, started a new business on
October 8th. A number of start-up...
asked 47 minutes ago -
You and your friends are playing in the swimming pool with a
40-cm-diameter beach ball. How...
asked 52 minutes ago -
Patterson Development sometimes sells property on an installment
basis. In those cases, Patterson reports income in...
asked 1 hour ago -
please help with these two example, i want to double check my
work. thanks
1.
sum:=0...
asked 1 hour ago -
in the formation of 1.0 mole of the following crystalline solids
from the gaseous ions most...
asked 1 hour ago