Asymmetrically clipped optical OFDM with generalized index modulation for atmospheric turbulent channel

Table 1. One subcarrier is activated in per sub-block
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Table 1. One subcarrier is activated in per sub-block
z_d z₁ z₂ d'_z₁ $I_{g}^{δ}$ $S_{g}^{δ}$
0 0000* 01 0 $[s_{g}^{1} (1), 0,0, 0]$
1 0000 01 0 $[s_{g}^{1} (1), 0,0, 0]$
     
14 0011 10 3 [0 0 0 1] $[0,0, 0, s_{g}^{1} (4)]$
15 0011 11 3 [0 0 0 1] $[0,0, 0, s_{g}^{1} (4)]$

Table 2. Two subcarriers are activated in per sub-block
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Table 2. Two subcarriers are activated in per sub-block
z_d z₁ z₂ d'_z₁ $I_{g}^{δ}$ $S_{g}^{δ}$
16 01* 0000 0 $[s_{g}^{2} (1), s_{g}^{2} (2), 0,0]$
17 01 0001 0 $[s_{g}^{2} (1), s_{g}^{2} (2), 0,0]$
     
62 11 1110 2 [0 0 1] $[0,0, s_{g}^{2} (3), s_{g}^{2} (4)]$
63 11 1111 2 [0 0 1] $[0,0, s_{g}^{2} (3), s_{g}^{2} (4)]$

Table 3. Parameters for Exponetiated Weibull turbulence model
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Table 3. Parameters for Exponetiated Weibull turbulence model
湍流强度李拓夫方差形状参数1 形状参数2
尺度
参数
接收孔径D/mm
Weak 0.317 3.67 1.97 0.73 25
Moderate 2.202 5.37 0.81 0.33 25
strong 15.851 5.50 0.74 0.29 25

Table 4. Transmission rate， SE， computational complexity and PAPR of the ACO-OFDM-GIM， ACO-OFDM-IM and ACO-OFDM schemes

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Table 4. Transmission rate， SE， computational complexity and PAPR of the ACO-OFDM-GIM， ACO-OFDM-IM and ACO-OFDM schemes

调制方式	传输速率	频谱效率	计算复杂度	峰均比
ACO-OFDM	$\frac{N l o g_{2} (M)}{4}$	$\frac{l o g_{2} (M)}{4}$	$M^{n}$	$\frac{N}{E_{a v e_p}^{Q A M}}$
ACO-OFDM-IM	$\frac{r (⌊l o g_{2} (C_{n}^{k})⌋ + k l o g_{2} (M))}{2}$	$\frac{r (⌊l o g_{2} (C_{n}^{k})⌋ + k l o g_{2} (M))}{2 N}$	$M^{k}$	$\frac{k N}{n E_{a v e_p}^{Q A M}}$
ACO-OFDM-GIM	$\frac{r ⌊l o g_{2} (\sum_{k (δ) \in k} M^{k (δ)} C_{n}^{k (δ)})⌋}{2}$	$\frac{r ⌊l o g_{2} (\sum_{k (δ) \in k} M^{k (δ)} C_{n}^{k (δ)})⌋}{2 N}$	$M^{k (1)} M^{k (2)} \dots M^{k (δ)}$	$\frac{\sum_{k (δ) \in k} k (δ) N}{n E_{a v e_p}^{Q A M}}$

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Hui-qin WANG, Hong-xia DOU, Ming-hua CAO, Yu-kun MA, Qing-bin PENG. Asymmetrically clipped optical OFDM with generalized index modulation for atmospheric turbulent channel[J]. Optics and Precision Engineering, 2021, 29(9): 2268

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