A DS-SS Sequence Synchronization Approach with Anti-Near-Far Effect Ability
Meng Xiang-ru · Telecommunication Engineering · 2007
A novel DS synchronization approach based on Pricipal Components Analysis(PCA)is proposed.The key idea of the approach is to first detect the desired user's spread spectrum code,then compare the detected code and the real one.So the desired user code phase of received signal can be obtained and synchronization is achieved.The proposed approach is of relatively low computational complexity and non-training-sequence is needed.Simulations are performed when intense Multi-Access Interference(MAI)exists under Gaussian channel and Rayleigh fading channel.The numerical results show that reliable synchronization can be achieved using this approach.