The study of parallel interference weighted canceller multiuser detection
Xiao Lei, Qinglin Liang · 2003
This paper presents an idea for a parallel interference weighted canceller (PIWC) to mitigate the degrading effects of unreliable interference estimation that is the key shortcoming of the total interference canceller. Moreover, the computational complexity of the scheme is linear in the number of users and only a little more than that of the total PIC. So, the PIWC has great practicability. Based on Gaussian approximation, the determinate weighting and fuzzy weighting are studied. Simulation results confirm that the PIWC is better than the total PIC and the fuzzy weighting is better than determinate weighting.