Researching | Low-Complexity OB-MMSE Detection Algorithm for Generalized Wireless-Optical Spatial Modulation

Acta Optica Sinica, Volume. 39, Issue 12, 1206002(2019)

Low-Complexity OB-MMSE Detection Algorithm for Generalized Wireless-Optical Spatial Modulation

Minghua Cao¹, Lihua Song¹, Huiqin Wang^1、*, and Daobin Wang²

Author Affiliations

¹School of Computer and Communication, Lanzhou University of Technology, Lanzhou, Gansu 730050, China

²School of Science, Lanzhou University of Technology, Lanzhou, Gansu 730050, China

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Fig. 1. Model of GOSM system

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Fig. 2. Variation in P(ρ≤V_th) with n and a

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Fig. 3. BER of OB-MMSE algorithm with different a

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Fig. 4. Comparison of BER of ML,MMSE, and OB-MMSE

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Fig. 5. BER of three algorithms for different systems

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Fig. 6. Relative complexity of MMSE and OB-MMSE algorithms

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Fig. 7. Relative complexity of OB-MMSE algorithm with different a

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Table 1. Complexity for each algorithm
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Table 1. Complexity for each algorithm
Algorithm Complexity
ML ML(2N_tN_rL+2N_rL-1)
MMSE $\frac{3}{2} N_{t}^{2}$ N_r- $\frac{1}{4} N_{t}^{2}$ +2N_tN_rL- $\frac{5}{4}$ N_rN_t+ML(2N_tL-1)
OB-MMSE $\begin{array}{l} (\frac{3}{2} N_{r} n_{t}^{2} - \frac{5}{4} N_{r} n_{t} - \frac{1}{4} n_{t}^{2} + 4 N_{r} n_{t} L + 4 N_{r} L - \\ n_{t} L + 2 N_{r} + 2 n_{t} LM - n_{t} M - L - 2) γ_{0} \end{array}$

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Minghua Cao, Lihua Song, Huiqin Wang, Daobin Wang. Low-Complexity OB-MMSE Detection Algorithm for Generalized Wireless-Optical Spatial Modulation[J]. Acta Optica Sinica, 2019, 39(12): 1206002

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Paper Information

Category: Fiber Optics and Optical Communications

Received: May. 8, 2019

Accepted: Aug. 8, 2019

Published Online: Dec. 6, 2019

The Author Email: Wang Huiqin (whq1222@lut.edu.cn)

DOI:10.3788/AOS201939.1206002

Topics

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