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Which system is best from GSM, IS-136 & IS-95 ? Justify your answer with any four points.
written 5.7 years ago by gravatar for teamques10 teamques10 ★ 66k •   modified 2.7 years ago
mobile communication
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written 5.6 years ago by gravatar for teamques10 teamques10 ★ 66k

Based on following parameters we can say IS-95 system is best

  1. Multiple access technique CDMA, TDMA (Used in Both GSM & IS-136)

  2. Modulation BPSK with quadrature spreading (π/4 DQPSK in IS-136)

  3. Carrier separation 1025MHz (30KHz. In IS-136, & 45MHz in GSM)

  4. Voice channels per carrier 64 (3 in IS-136 & 8 in GSM)
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