
109
Peak-to-average Power ratio
reduced to about 9.8 dB, 8.9 dB, and 8.4 dB, respectively. e PAPR
improvement is about 1.2 dB, 1.4 dB, and 1.6 dB when L is 10, 30,
and 55, respectively. is means that an average improvement of
1.4dB in PAPR performance is achieved.
e proposed DSI-SLM scheme is also compared with C-SLM
with various values of M (2, 4, 8, and 16). Figure4.32 presents the
CCDF comparison between DSI-SLM and the C-SLM when L in
DSI-SLM is fixed and equal to 55. As shown in Figure 4.32, the PAPR
of the original OFDM signal is about 11.8 dB at CCDF=0.01%.
When the C-SLM method with various numbers of candidate signals
(M = 2, 4, ...