BER Performance of W-CDMA Reciever Using Adaptive Array Antenna Technique in Indoor LOS/NLOS Environments

The wide band code division multiple access (W-CDMA) receiver combined with adaptive array antenna (AAA) technique is developed and used to measure the bit error rate (BER) performances in indoor line of sight (LOS) and non line of sight (NLOS) environments. Since the BER changes with the orientation of the receiving antenna in indoor environment, the mean BER is proposed by averaging all BERs at each orientation of receiving antenna along the azimuth direction. Compared with the single antenna when BER is equal to 10^-2, the experimental results have demonstrated that signal-to-interference ratio (SIR) can be improved by 10 dB in indoor LOS environment and 8 dB in indoor NLOS environment, respectively.