Research Article

CP-Based SBHT-RLS Algorithms for Tracking Channel Estimates in Multicarrier Modulation Systems

Figure 8

Plots of fixed-point performance of CPE2 (top) and CPE3 (bottom) with three choices of quantization bits ( 𝜆 = 0 . 7 5 , 4-QAM).
452806.fig.008a
(a)
452806.fig.008b
(b)