Differentiate between GSM and CDMA - Telecommunications

Differentiate between GSM and CDMA


GSM

- GSM uses multiple frequencies.

- Uses TDMA and FDMA for accessing signals.

- The voice rate is 9.6 KBPS.

- Uses less bandwidth.

CDMA

- CDMA uses single frequency as carrier.

- The voice rate is 14.4 KBPS.

- CDMA power control to access method is better as Phased Locked Loops are used.

- Follows soft handoff, hence call handling is more efficient.
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    Discussion

  • RE: Differentiate between GSM and CDMA - Telecommunications -mohammad lalbabu (03/08/16)
  • gsm is the 2g digital technology,
    cdma is the 3g digital technology,
    cdma is faster then gsm,
    cdms is provide high speed for data and communication .
  • RE: Differentiate between GSM and CDMA - Telecommunications -mohammad lalbabu (03/08/16)
  • gsm is the 2g digital technology,
    cdma is the 3g digital technology,
    cdma is faster then gsm,
    cdms is provide high speed for data and communication .
  • RE: Differentiate between GSM and CDMA - Telecommunications -akshay kumar (07/08/15)
  • pdf
  • RE: Differentiate between GSM and CDMA - Telecommunications -Anil Bamane (12/10/14)
  • GSM:
    uses TDMA & FDMA multiple access techniques
    modulation technique 0.3 GMSK
    channel BW (carrier separation) is 200 kHz
    power control 2-7 times /sec
    discontinuous transmission
    data rate 22.8 kpbs
    adaptive equilizer is used at receiver to avoid ISI

    CDMA:
    uses CDMA multiple access techniques
    modulation technique QPSK
    channel BW (carrier separation) is 1.25MHz
    power control 800 times /sec
    continuous transmission
    data rate 14.4 kpbs
    Rake receiver is used at receiver to avoid ISI

  • RE: Differentiate between GSM and CDMA - Telecommunications -Mohammed Zaid Shaikh (06/05/14)
  • Gsm is 3rd generation network c and cdma is 2nd generation
  • RE: Differentiate between GSM and CDMA - Telecommunications -syed rizwan fahed (05/10/14)
  • Gsm is a second generation digital network and cdma is a third generation digital network