Tree-structure optimal joint detection and performance analysis for QPSK signal in over-saturated multiple access communication
Bi Jian, Isn Key · Journal of China Institute of Communications · 2001
On the basis of wavelet packet tree structured signal sets,this paper generalizeds the TSOJD algorithm to complex field for QPSK signals Besides,via the computer simulation,we explore the performance of TSOJD receiver and the effect of phase offset on it The simulation results indicate that the algorithm could achieve good tradeoff between computational complexity and performance