Simple Algorithms for Estimating the Symbol Timing Offset in DCT-Based Multicarrier Systems

Figure 2

(a) Cyclic prefix for DFT-based systems. Symmetrical extensions for (b) DCT2e-based and (c) DCT4e-based systems. HS and HA stand for half-sample symmetry and half-sample antisymmetry, respectively. (d) Symmetry in the channel impulse response . WS stands for whole-sample symmetry (, ).

(a)

(b)

(c)

(d)