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논문 기본 정보

자료유형
학술저널
저자정보
Ye Shan (Dalian University of Technology) Ming Li (Dalian University of Technology) Minglu Jin (Dalian University of Technology)
저널정보
한국정보통신학회JICCE Journal of information and communication convergence engineering Journal of information and communication convergence engineering Vol.13 No.1
발행연도
2015.3
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1 - 6 (6page)

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초록· 키워드

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In this study, we consider visible light communication in an indoor line-of-sight environment. It has been proved that among the multiple input multiple output (MIMO) techniques, spatial modulation (SM) performs better than repetition coding (RC) and spatial multiplexing (SMP). On the basis of a combination of SM and pulse amplitude modulation (PAM), here, we propose an enhanced SM algorithm to improve the bit error rate. Traditional SM activates only one light-emitting diode (LED) at one time, and the proposed enhanced SM activates two LEDs at one time and reduces the intensity levels of PAM by half. Under the condition of a highly correlated channel, power imbalance is used to improve the algorithm performance. The comparison between the two schemes is implemented at the same signal-to-noise ratio. The simulation results illustrate that the enhanced SM outperforms the traditional SM in both highly correlated and lowly correlated channels. Furthermore, the proposed enhanced SM scheme can increase the transmission rate in most cases.

목차

Abstract
Ⅰ. INTRODUCTION
Ⅱ. SYSTEM MODEL
Ⅲ. MODULATION ALGORITHM
Ⅳ. RESULTS AND ANALYSIS
Ⅴ. CONCLUSION
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