
114
Power effiCienCy in wireless CommuniCations
performance comparison of DSI-SLM when M=2 and the number
of iterations for DSI is varied (S= 10, 20, 30, 40,and 100).
According to Figure4.37, when S = 10, 20, 30, 40, and 100, the
PAPR of 8.5 dB, 8 dB, 7.8 dB, 7.6 dB, and 7.5 dB are achieved,
respectively. It is shown that by increasing the number of DSI itera-
tions (I), the PAPR performance is enhanced. It is always a trade-
off between the PAPR performance and the processing delay, which
causes data rate loss. While a higher number of iterations leads to
higher PAPR performance, the data rate will be degraded. It should
be noted that by increa ...