Approximate Derivation of Average Bit Error Rate in DS-CDMA Systems under Frequency Selective Fading

摘要

It is one of key themes in DS-CDMA systems to evaluate an average bit error rate performance as parameters of the number of simultaneous access users, the maximum Doppler frequency and so on. The paper proposes an approximate derivation method of the average bit error rate under the frequency selective fading environment (multi-ray Rayleigh fading model). The performance evaluation is carried out in 2-ray model, COST207 model and IMT2000 model. It is confirmed from the coincidence of approximate results with simulation ones that the proposed approach is applicable to a variety of system parameters.