MIMO visible light communication system with block Markov superposition transmission

Chen, Shengxiao; Ma, Xiao

doi:10.1049/iet-com.2017.0894

Cited by 3 publications

(5 citation statements)

References 29 publications

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“…where, Ba is a vector of BWs allocated to each SD n ∈ Ua, i.e., to each SD that is associated to AP a. In this work, the Lagrange multiplier method is used to solve the minimization of convex optimization problem defined in (37) with equality constraint on the BW defined in (38) [46]. Algorithm 1 shows the steps involved in the Lagrange multiplier method.…”

Section: Hierarchical Decomposition Methodsmentioning

confidence: 99%

“…to each SD that is associated to AP a. In this work, the Lagrange multiplier method is used to solve the minimisation of convex optimisation problem defined in (37) with equality constraint on the BW defined in (38) [45]. Algorithm 1 (see, Fig.…”

Section: Hierarchical Decomposition Methodsmentioning

confidence: 99%

“…In this work, we assume that all the VLC links are point-to-point and the corresponding channel gain is obtained as [37], [38]…”

Section: Vlc Channel Modelmentioning

confidence: 99%

“…This is because the signal wavelength in VLC is only hundreds of nanometres, and the size of commonly used photodetectors is in the order of few centimetres, which is sufficiently large to achieve effective space diversity for VLC signals, thereby mitigating the multipath fading [35]. In this work, we assume that all the VLC links are point-to-point and the corresponding channel gain is obtained as [36,37]…”

Section: Vlc Channel Modelmentioning

confidence: 99%

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Optimisation of indoor hybrid PLC/VLC/RF communication systems

et al. 2020

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In this work, we propose a hybrid power line communication (PLC)/visible light communication (VLC)/radio frequency (RF) fronthaul with a fiber based wired backhaul system to support massive number of smart devices (SDs). Since, a signal-to-noise ratio (SNR) based access point (AP) association and bandwidth (BW) allocation for each SD do not necessarily improve the system capacity, we propose novel and efficient AP association and BW allocation strategies to maximize the sum rate capacity (SRC) of the hybrid system under consideration. An optimization problem is formulated for the SRC with the AP association and BW allocation as the optimization parameters and a hierarchical decomposition method is used to convert the non-linear optimization problem into a set of convex optimization problems. Then, the proposed strategies are used to solve the optimization problem in an iterative manner till the SRC converges to an optimal value. Further, an analytical approximation for the BW allocated to each SD for a given AP association is derived using the Lagrangian multiplier method. The performance of the proposed system is evaluated through extensive numerical results. Moreover, the effect of the increased number of SDs on the optimal SRC is analysed.

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Section: Hierarchical Decomposition Methodsmentioning

confidence: 99%

Section: Hierarchical Decomposition Methodsmentioning

confidence: 99%

“…In this work, we assume that all the VLC links are point-to-point and the corresponding channel gain is obtained as [37], [38]…”

Section: Vlc Channel Modelmentioning

confidence: 99%

Section: Vlc Channel Modelmentioning

confidence: 99%

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Optimisation of indoor hybrid PLC/VLC/RF communication systems

et al. 2020

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“…In other words, it allows the transmitter to transmit multiple user information simultaneously. In order for the superposition code to function correctly on the receiver side, the transmitter must encode the relevant information for each piece of information (Chen and Ma, 2018). The transmitted information signal 𝑠 is a linear superimposition to all users, as follows.…”

Section: Superposition Codementioning

confidence: 99%

High-Bit-Rate Transmission in Visible Light Communication System Based on Adaptive Successive Interference Cancellation Technique

Pamukti¹,

Wijayanto²,

Liaw³

2023

IJTech

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In this study, we proposed an adaptive successive interference cancellation (SIC) technique to enhance non-orthogonal multiple access visible light communication (NOMA-VLC) and demonstrate its effectiveness using extensive simulations. NOMA-VLC is a promising technology for high-speed wireless communication, but interference from multiple users can pose a significant challenge. SIC is a technique that can help mitigate this interference. We used non-return to zero (NRZ) modulation to achieve high bit rates up to 2 Gbps and evaluated the performance using bit error rate (BER) analysis. Our simulation showed that the static power allocation (SPA) performance on the NOMA-VLC system achieved a BER value of around 10 -3 for both users, using power allocation α1=0.7 and α2=0.3. We also compared SPA against gain ratio power allocation (GRPA) and found that the performance of GRPA was not as good, with a BER value around 10 -2 . Our results show the effectiveness of the proposed SIC technique in enhancing the performance of NOMA-VLC.

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Performance of Power Allocation and Iterative Receiver in SM-VLC System with Block Markov Superposition Transmission

Chen

2018

2018 IEEE/CIC International Conference on Communications in China (ICCC)

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MIMO visible light communication system with block Markov superposition transmission

Cited by 3 publications

References 29 publications

Optimisation of indoor hybrid PLC/VLC/RF communication systems

Optimisation of indoor hybrid PLC/VLC/RF communication systems

High-Bit-Rate Transmission in Visible Light Communication System Based on Adaptive Successive Interference Cancellation Technique

Performance of Power Allocation and Iterative Receiver in SM-VLC System with Block Markov Superposition Transmission

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