Low-Complexity Adaptive Channel Estimation over Multipath Rayleigh   Fading Non-Stationary Channels Under CFO
  In this paper, we propose novel low-complexity adaptive channel estimation techniques for mob ile wireless chan- n els in presence of Rayleigh fading, carrier frequency offsets (CFO) and random channel variations. We show that the selective p artial update of the estimated channel tap-weight vector offers a better trade-off between the performance and computational complexity, compared to the full update of the estimated channel tap-weight vector. We evaluate the mean-square weight error of th e proposed methods and demonstrate the usefulness of its via simulation studies. 
Sayed A. Hadei (Student Member, IEEE), Paeiz Azmi (Senior Member,   IEEE)
cs.IT math.IT