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A metropolitan area is to be given wireless digital telephone service. Throughout this area there is approximately uniform service demand. Assume that the frequency is

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A metropolitan area is to be given wireless digital telephone service. Throughout this area there is approximately uniform service demand. Assume that the frequency is allocated in two blocks of 4 MHz with a separation of 50 MHz, one block for the uplink and the other for the downlink, which constitutes a frequency division duplex (FDD) operation. The system uses the hybrid frequency division/time-division multiple access (FD/TDMA) scheme as follows: The frequency band is divided into 500 kHz "channels" (which is the frequency division part) and on each of those "channels" a total 40 high-quality digital voice circuits are multiplexed in a TDMA manner b) The modulation scheme used is 8-QAM which is implemented with the square-root-raised cosine pulses with a roll-off factor, a of 0.25. Find the bit rate for each user. Hint ReW/1+a where R is the rate and w is the bandwidth. A metropolitan area is to be given wireless digital telephone service. Throughout this area there is approximately uniform service demand. Assume that the frequency is allocated in two blocks of 4 MHz with a separation of 50 MHz, one block for the uplink and the other for the downlink, which constitutes a frequency division duplex (FDD) operation. The system uses the hybrid frequency division/time-division multiple access (FD/TDMA) scheme as follows: The frequency band is divided into 500 kHz "channels" (which is the frequency division part) and on each of those "channels" a total 40 high-quality digital voice circuits are multiplexed in a TDMA manner b) The modulation scheme used is 8-QAM which is implemented with the square-root-raised cosine pulses with a roll-off factor, a of 0.25. Find the bit rate for each user. Hint ReW/1+a where R is the rate and w is the bandwidth

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