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With a neat diagram, explain forward CDMA channel.
written 7.8 years ago by gravatar for teamques10 teamques10 ★ 65k •   modified 7.8 years ago

Mumbai university > Comp > SEM 8 > Mobile Communication

Marks: 10M

Year: Revised 2012
mobile communication
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written 7.8 years ago by gravatar for teamques10 teamques10 ★ 65k

  • CDMA forward link uses same frequency spectrum as AMPS i.e. 869-894 MHz. One channel bandwidth is 1.25 MHz

  • Modulation scheme used is QPSK.

  • Orthogonal Walsh codes are used. Walsh codes are called Hadamard codes and they are used in all CDMA techniques.

  • Forward channels are separated from each other using …

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