Calculate the pathloss for the following models at frequency of 850MHz and 1450MHz, at distance of...
Calculate the pathloss for the following models at frequency of 850MHz and 1450MHz, at distance of 1km and 20 km. Assume that base station antenna height is 50 m and mobile antenna height is 1.5 m.
1. Free-Space
2. Hata
Homework Answers
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Calculate the pathloss for the following models at frequency of
850MHz and 1450MHz, at distance of...
Use Hata model, assuming that carrier frequency is 900 MHz, mobile antenna height is 1.5 m,...
Use Hata model, assuming that carrier frequency is 900 MHz, mobile antenna height is 1.5 m, and base station antenna height is 30 meter, determine the required transmit power level to obtain a 5 km cell radius when the receiver sensitivity is −104 dBm
what is Matlab code to plot the path loss from 0 to 10 km using Hata...
what is Matlab code to plot the path loss from 0 to 10 km using Hata model, assuming fc= 900 MHz in an urban environment, mobile antenna height is 1.5 m, and base station antenna height are 30 and 200 meter, respectively.
Please only solve for N(R) - the first picture is simply there so you may calculate N(R)
Please only solve for N(R) - the first picture is simply there
so you may calculate N(R)
Assume your car, with Rx antenna perfectly aligned with base station Tx antenna, is moving with speed of 60 Km/hour. Assuming carrier frequency of 10 MEHz, find the Doppler frequency [m/sec]. (3) in IHzl Use f (v) Cos 0 and unit of [m] for ' and 'v' in Per Doppler frequency you found in Problem 2, calculate the Level Crossing Rate (LCR) denoted...
11.It is often more convenient to express distance in km rather than m and frequency in...
11.It is often more convenient to express distance in km rather than m and frequency in MHz rather than Hz. Rewrite Equation (6.4) given on slide 27 for free space loss using these dimensions. FREE SPACE LOSS . Free space loss equation can be recast: = 20log(スー) --20log(a) 20log(d)+21.98 dB LdB = 10 log logeet)-20log(r)-201g(d)-147 56dB The Wireless Channel 6-27
If the carrier wave frequency is 900MHz, and the moving speed of the mobile station is...
If the carrier wave frequency is 900MHz, and the moving speed of the mobile station is 100 km/h. Currently the angle between the moving direction and the wave propagation direction is 60°. 1.Calculate the current Doppler shift. 2.Calculate the maximum Doppler shift.
answer the question and write the formula Decide the Rician factor K [dB] for the LOS...
answer the question and write the formula
Decide the Rician factor K [dB] for the LOS power of 10 [m W] and diffuse components power of I [mW1. (2) 1. 10 l k 1699 17 2. Assume your car, with Rx antenna perfectly aligned with base station Tx antenna, is moving with speed ‘v' of 60 Km/hour. Assuming carrier frequency of 100 MHz, find the Doppler frequency in [Hz]. Use a-(va) Cos θ and unit of [m] for' λ, and...
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...
For the information given below, calculate the link budget analysis for the wireless system, which will involve calculat...
For the information given below, calculate the link budget
analysis for the wireless system, which will involve calculating
the following:
• Received Power
• Link Margin
Assume that we are using the same antennas at the transmitter
and the receiver side, the link budget calculations will be the
same as the link budget in both directions is expected to be
symmetrical. In cases where 2 types of antenna systems with
different transmit power are used, we must perform two link...
9. (6 points) An antenna engineer is asked to design a X/2 dipole antenna to operate at 450 MHz. (a) Calculate the leng...
9. (6 points) An antenna engineer is asked to design a X/2 dipole antenna to operate at 450 MHz. (a) Calculate the length of the antenna if it is located in free space. (b) Calculate the magnetic field intensity, H, at a distance of 400km, polar position 0 = 30 degrees and current I = 2A (c) What value of the current I is needed for the total radiated power to equal 100 mW. (d) Determine the length of the...
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...
Please only solve for N(R) - the first picture is simply there
so you may calculate N(R)
Assume your car, with Rx antenna perfectly aligned with base station Tx antenna, is moving with speed of 60 Km/hour. Assuming carrier frequency of 10 MEHz, find the Doppler frequency [m/sec]. (3) in IHzl Use f (v) Cos 0 and unit of [m] for ' and 'v' in Per Doppler frequency you found in Problem 2, calculate the Level Crossing Rate (LCR) denoted...
11.It is often more convenient to express distance in km rather than m and frequency in MHz rather than Hz. Rewrite Equation (6.4) given on slide 27 for free space loss using these dimensions. FREE SPACE LOSS . Free space loss equation can be recast: = 20log(スー) --20log(a) 20log(d)+21.98 dB LdB = 10 log logeet)-20log(r)-201g(d)-147 56dB The Wireless Channel 6-27
answer the question and write the formula
Decide the Rician factor K [dB] for the LOS power of 10 [m W] and diffuse components power of I [mW1. (2) 1. 10 l k 1699 17 2. Assume your car, with Rx antenna perfectly aligned with base station Tx antenna, is moving with speed ‘v' of 60 Km/hour. Assuming carrier frequency of 100 MHz, find the Doppler frequency in [Hz]. Use a-(va) Cos θ and unit of [m] for' λ, and...
For the information given below, calculate the link budget
analysis for the wireless system, which will involve calculating
the following:
• Received Power
• Link Margin
Assume that we are using the same antennas at the transmitter
and the receiver side, the link budget calculations will be the
same as the link budget in both directions is expected to be
symmetrical. In cases where 2 types of antenna systems with
different transmit power are used, we must perform two link...
9. (6 points) An antenna engineer is asked to design a X/2 dipole antenna to operate at 450 MHz. (a) Calculate the length of the antenna if it is located in free space. (b) Calculate the magnetic field intensity, H, at a distance of 400km, polar position 0 = 30 degrees and current I = 2A (c) What value of the current I is needed for the total radiated power to equal 100 mW. (d) Determine the length of the...
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...
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