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QUESTION
A new phone company wants to provide very cheap voice-only cell phone capability to 20,000 simultaneous users in San Francisco.
- A new phone company wants to provide very cheap voice-only cell phone capability to 20,000 simultaneous users in San Francisco. They transmit only 8 kbs per duplex channel using FDMA (frequency division multiple access) and BPSK (1 bit/Hz). The FCC manidates that they use 1 kHz of guard band on each side of the channels.
- a) For a system of 10 clusters, what total bandwidth do they ask the FCC for?
- b) If they use a frequency reuse scheme of 7 per cluster, how many channels are per cell?
