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Abstract — Code Division multiple Accesses (CDMA) is one of the effective and efficient technologies is used in 2nd generation (2G) and 3rd generation (3G) wireless communication. Multipath delay spread, channel noise, Doppler effects, peak to average power ratio (PAPR) and time synchronization error are ubiquitous problem in wireless communication system. By considering these problems the performances of CDMA system has been analyzed. All the performances are measured on the basis of bit error rate (BER). It is found that CDMA performs slight worse in multipath delay spread and channel noise and offers a very high tolerance to Doppler effects and PAPR