Impact of antenna layout on MIMO visible light communication

被引：0

作者：

Hu, Shu-Tong ^{[1
]}

Zhang, Jian-Yong ^{[1
,2
]}

Zhang, Yan-Qiu ^{[1
]}

机构：

[1] Institute of Lightwave Technology, Beijing Jiaotong University, Beijing

[2] Key Lab of All Optical Network & Advanced Telecommunication Network, Ministry of Education of China, Beijing Jiaotong University, Beijing

来源：

Guangdianzi Jiguang/Journal of Optoelectronics Laser | 2015年 / 26卷 / 08期

关键词：

Antenna layout; Multi-input multi-output (MIMO); Repetition coding (RC); Spatial modulation (SM); Spatial multiplexing (SMP); Visible light communication (VLC);

D O I：

10.16136/j.joel.2015.08.0225

中图分类号：

学科分类号：

摘要：

For multi-input multi-output (MIMO) indoor visible light communication (VLC), this paper analyzes the impact of antenna layout on the system performance by changing the spatial distribution of light-emitting diodes (LEDs) and optical receivers. In this paper, we use a channel model, which is based on Lambertian radiation, to estimate the channel state matrix. The MIMO technique used in the system consists of three well-known aspects, repetition coding (RC), spatial multiplexing (SMP) and spatial modulation (SM). Two types of systems are analyzed in this paper. The first case is a 4×6 system, which uses 4 LEDs at the transmitter side arranged in square layout and 6 detectors at receivers arranged in hexagonal, rectangular and triangular layouts. As shown in the simulation results, the triangular layout gives the best bit error rate (BER) performance for RC at the center of the room. The BER curves of hexagonal and triangular layouts are almost coincident for SMP and SM, which are both better than the BER curve of rectangle layout. If the receiver is not at the center of the room, the hexagonal layout is the best choice. The second case is an 8×8 system with LEDs and photo detectors using octagonal, square layouts respectively. The simulation results show that the system using square layout in the transmitter has better BER performance than that using the octagonal layout. ©, 2015, Board of Optronics Lasers. All right reserved.

引用

页码：1492 / 1497

页数：5

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