(Answered) Problem 1the available bandwidth in a cluster is 125mhz

Engineering

Problem 1:

The available bandwidth in a cluster is 1.25MHz. Find the number of channels per cell for the following systems:

a.) AMPS: 30kHz/channel, 7cells/cluster;

b.) NMTa: 25kHz/channel, 7cells/cluster;

c.)NMTb: 12.5kHz/channel, 13cells/cluster;

d.) GSM:25kHz/channel, 4cells/cluster;

e.)CDMA: 1.25kHz/channel, 20channel/sector, 1 cells/cluster, 3 sectors/cell.

Problem 2:

The delay spread in an environment TD is 5 micro seconds.

The maximum Doppler spread FD is 200Hz.

What is the appropriate range of the symbol duration of OFDM signals?

Problem 3:

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