Advantages of CDMa are as follows :
1. Frequency diversity : Transmission is spread out over a large bandwidth due to that less affected by noise. If bandwidth is increased S/N ratio increases, which means noise will be reduced.
2. Multiplication Resistance : Chipping codesused for CDMA not only exhibit low correlationbut also low autocorrelation. Hence a version
of the signal that is delayed by more than onechip interval does not interfere with dominant signal as in other multipath environments.
3. Privacy : Due to spread spectrum is obtained by the use of noise like signals, where each user has a unique code, so privacy is inherent.
4. Graceful Degradation. In CDMA, more users access the system simultaneously as compared to FDMa, TDMA.
Monday, September 29, 2014
Advantages Of CDMA
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