UNIVERSE
SATELLITESICY BODIES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If the traffic in the downlink is much heavier than that in the uplink, then FDMA is relatively inefficient.
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Compared with TDMA, FDMA has less flexibility in reassigning channels.
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Carrier frequency assignments are hardware controlled
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All of the above
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Detailed explanation-1: -The cell site cost is high. The bandwidth of the FDMA channel is narrow. Carry only one phone circuit at a time. As a result of nonlinear, intermodulation products are generated. Intermodulation frequencies can cause adjacent channel interference. Network planning is time-consuming. More items
Detailed explanation-2: -In FDMA, all users share the satellite transponder or frequency channel simultaneously but each user transmits at single frequency. FDMA can be used with both analog and digital signal but it generally used with analog signal. FDMA requires high-performing filters in the radio hardware, in contrast to TDMA and CDMA.
Detailed explanation-3: -Reduces the bit rate information and the use of efficient numerical codes increases the capacity. It reduces the cost and lowers the inter symbol interference (ISI) Equalization is not necessary. An FDMA system can be easily implemented. More items