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The simulation results demonstrate that the proposed optimal irregular mapping and doping yield a better performance than the typical symbol mappings of 8PSK, that is, a 0.1-dB0.1-dBover AWGN channels and a 0.5-dB0.5-dBoveRayleighgh fading channels at BER= 10−4.
Similarly, denote I A Ir P Ir, I E Ir P Ir as the mutual information of the system with irregular mapping and doping.
For the BICM-ID with doping system, we employ typical symbol mappings with the doping rate P=50 and optimal irregular mappings with irregular dopings, which are obtained in Section 4. For AWGN channels, it is shown in Figure 14 that the curve of BICM-ID using the optimal irregular mapping and doping outperforms the other mappings.
The bit error rate (BER) results demonstrate that the BICM-ID system with the proposed optimal irregular mapping and doping outperforms the other typical symbol mappings, and yields a gain of about 0.1 and 0.5 dB for AWGN and Rayleigh fading channels, respectively.
The EXIT curve of the proposed BICM-ID-SSD with irregular mapping and doping over Rayleigh fading channels is depicted in Figure 13, where the parameters of irregular mapping and doping are exactly the same as the optimal parameters for AWGN channels.
Section 4 proposes the optimization of irregular mapping with irregular doping, where the EXIT curves of BICM-ID with the proposed optimal irregular mapping and doping are provided to reveal the performance improvement.
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This conclusion maps neatly to our results on nutritional supplements and doping agents but also calls for further investigation as our results on the implicit association task might have been affected by the target stimuli [42].
And doping was hard to define.
The big gaping wound was the ongoing credibility hit from doping and doping cover-ups.
Denote that I A 1 P 1, I E 1 P 1, I A 2 P 2, I E 2 P 2 ∈ I A P, I E P are the doped demapper's EXIT curves of mapping T1 with doping rate P1 and mapping T2 with doping rate P2, respectively, where I A P, I E P is the set of the classified unique EXIT curves with doping rate P∈{10,50,100}.
Therefore, the doped demapper's EXIT curve with the irregular mapping T I r =[T1,T2] and doping rate P I r =[P1,P2] is equivalent to the linear combination of the two EXIT curves of mapping T1 with doping rate P1 and mapping T2 with doping rate P2 directly.
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