Performance Research for Multiple Access in DS-PAM UWB System
The DS-PAM UWB signal and the bit error rate formula of DS-PAM UWB system multiple access based on Gaussian approximation method is introduced over the Additive White Gaussian Noise channel and Multiple Access Interference,then the factors of affected DS-PAM UWB multiple access performance is analyzed,the results indicate that,along with the increasing bit rate of user and number of users,the Bit Error Rate of the system will be increased,but increasing the length of repetition code can decrease the system BER.