Explain how an OFDM transmitter and receiver work. What is the benefit of adding cyclic prefix at the transmitter?
Explain how an OFDM transmitter and receiver work. What is the benefit of adding cyclic prefix at the transmitter?
Homework Answers
Orthogonal frequency digital multiplexing transmitter will be encoding digital data into different frequency carrier. For transmission signal forward correction and time interleaving will be added. The main function will be given sample of data is converted into N sample using Inverse Fourier transform. These signals transmitted at certain frequency. The reciever will get the signal with coordination of frequency about the transmission signal. The cyclic prefix will be added at the transmitter is adding guard portion to the signal. That will be added because no damages to signal. Then at receiver the guard portion to prefix side OFMD symbol. This will be used in WLAN , brodcasbroad, etc
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Explain how an OFDM transmitter and receiver work. What is the benefit of adding cyclic prefix at the transmitter?
A) How do you ensure orthogonality in the OFDM system? b) Explain how the OFDM has minimal Inter ...
a) How do you ensure orthogonality in the OFDM system? b) Explain how the OFDM has minimal Inter Symbol Interference (IST)? c) What is SCFDM vis a. vis. OFDM and which one is recommended for downlink (10 points) (10 points) (10 points) communication and why? What is Code Prefix why is it used and how does it affect the data rate transmission? d)
a) How do you ensure orthogonality in the OFDM system? b) Explain how the OFDM has minimal...
What is the block digram for a FM transmitter and receiver?
What is the block digram for a FM transmitter and receiver?
9. In an ERP-OFDM(802.11g) wireless LAN, what can cu RF signal? (Choose 2) A B С...
9. In an ERP-OFDM(802.11g) wireless LAN, what can cu RF signal? (Choose 2) A B С D E Open air space between the transmitter and receiver Bright sunlight between the transmitting and receiving antennas Adding a coaxial extension cable Adding an RF amplifier in series with the main RF signal path Nearby Bluetooth 2.0 wireless systems 「 Г 10. A GAIN of 3 dB will yield what power ratio? A 5:1 В .5:1 С 10:1 D 2:1 E 3:1 С
Explain how OFDM system use IFFT to modulate information to multiple sub-carriers.
Explain how OFDM system use IFFT to modulate information to multiple sub-carriers.
With VC networks, the frame does not include the receiver address. Explain clearly how this would...
With VC networks, the frame does not include the receiver address. Explain clearly how this would still work! Give a detailed scenario that explains how deliveries to the receiver can still be obtained. Show all needed tables at the routers in support to your scenario.
please explain in detail 15. A engine goes through a cyclic process. During the cyclic process...
please explain in detail
15. A engine goes through a cyclic process. During the cyclic process the engine does 600 J of work and has a heat output of 2400 J. What is the efficiency of the engine?
Explain how cyclic voltammetry can be used to obtain a value for the rate constant, k.
Explain how cyclic voltammetry can be used to obtain a value for the rate constant, k.
show all work Example 4: What is the approximate tuning range of the receiver in Figure...
show all work
Example 4: What is the approximate tuning range of the receiver in Figure 5-2 (radio receiver)? Long wire antenna D1 1N60 - Germanium L1 C1 Tuning coil -250 uH 30-365 pF-Tuning High-impedance headphones Earth ground
Example 4: What is the approximate tuning range of the receiver in Figure 5-2 (radio receiver)? Long wire antenna D1 1N60 - Germanium L1 C1 Tuning coil -250 uH 30-365 pF-Tuning High-impedance headphones Earth ground
Explain what discretionary benefits are and how companies use them to benefit the company and its...
Explain what discretionary benefits are and how companies use them to benefit the company and its stakeholders.
a) How do you ensure orthogonality in the OFDM system? b) Explain how the OFDM has minimal Inter Symbol Interference (IST)? c) What is SCFDM vis a. vis. OFDM and which one is recommended for downlink (10 points) (10 points) (10 points) communication and why? What is Code Prefix why is it used and how does it affect the data rate transmission? d)
a) How do you ensure orthogonality in the OFDM system? b) Explain how the OFDM has minimal...
9. In an ERP-OFDM(802.11g) wireless LAN, what can cu RF signal? (Choose 2) A B С D E Open air space between the transmitter and receiver Bright sunlight between the transmitting and receiving antennas Adding a coaxial extension cable Adding an RF amplifier in series with the main RF signal path Nearby Bluetooth 2.0 wireless systems 「 Г 10. A GAIN of 3 dB will yield what power ratio? A 5:1 В .5:1 С 10:1 D 2:1 E 3:1 С
please explain in detail
15. A engine goes through a cyclic process. During the cyclic process the engine does 600 J of work and has a heat output of 2400 J. What is the efficiency of the engine?
show all work
Example 4: What is the approximate tuning range of the receiver in Figure 5-2 (radio receiver)? Long wire antenna D1 1N60 - Germanium L1 C1 Tuning coil -250 uH 30-365 pF-Tuning High-impedance headphones Earth ground
Example 4: What is the approximate tuning range of the receiver in Figure 5-2 (radio receiver)? Long wire antenna D1 1N60 - Germanium L1 C1 Tuning coil -250 uH 30-365 pF-Tuning High-impedance headphones Earth ground
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