I have 30 mins plzzz sir

(a) You are asked to design the wireless link for a professional video camera used in live TV news reporting. The allocated camer frequency is 7 GH and the maximum bandwidth is 10 MHz. OFDM is the preferred transmission scheme. Measurements have found that typical channel RMS delay spread ranges from 35 ns to 750 ns. 90% coherence bandwidth is considered for the design. You should also incorporate practical implementation challenges in your design. 0 Design the number of OFDM subcamiers for good system performance. Explain your answer. (i) Explain what will happen if the RMS delay spread is larger than the measurement results. (i) IS CDMA suitable for this application? Discuss your answer. 14, 2, 3 marks) (b) There are two users transmitting at 128 kbps in a WCDMA system with a chip rate of 3.84 Mcps. The near user has a path loss of 70 dB and the far user of 110 dB. Both users have a transmit SNR of 50 dB. In order for both users to have an SNIR of 13 dB, how much should the near and the far user increase their power by (in dB)? (a) You are asked to design the wireless link for a professional video camera used in live TV news reporting. The allocated camer frequency is 7 GH and the maximum bandwidth is 10 MHz. OFDM is the preferred transmission scheme. Measurements have found that typical channel RMS delay spread ranges from 35 ns to 750 ns. 90% coherence bandwidth is considered for the design. You should also incorporate practical implementation challenges in your design. 0 Design the number of OFDM subcamiers for good system performance. Explain your answer. (i) Explain what will happen if the RMS delay spread is larger than the measurement results. (i) IS CDMA suitable for this application? Discuss your answer. 14, 2, 3 marks) (b) There are two users transmitting at 128 kbps in a WCDMA system with a chip rate of 3.84 Mcps. The near user has a path loss of 70 dB and the far user of 110 dB. Both users have a transmit SNR of 50 dB. In order for both users to have an SNIR of 13 dB, how much should the near and the far user increase their power by (in dB)