Figure 11. Time-delay offset in orthogonal time-division multiplexing (orth-OTDM).

(a) Only one pulse with time-delay offset represented as delta_t1 (the second pulse); (b) two pulses with same position time-delay offset represented as delta_t1 and delta_t2, and delta_t1 = delta_t2; (c) two pulses with opposite position time-delay offset, represented as delta_t1 and –delta_2, and delta_t1 = −delta_t2.