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Abstract. In this paper, the performance of three typical resource allocation schemes is analyzed, which are applied to indoor MIMO-OFDM visible-light communication system, the maximum capacity allocation algorithm, the rate proportional algorithm and the multi-user subcarrier ordering allocation algorithm. The result of simulation shows that the three algorithms above can effectively improve the performance of indoor MIMO-OFDM visible light communication system. The system is capacity is at least 3 times higher. Simultaneously, in the system capacity, error performance and fairness, these three allocation method are significantly different.

This paper studies the visible light communication in the elevator. In the tiny space (1.6*1.4*2.3m), it has different distribution of illumination performance compared to the room of common size (5*5*3m). This paper analyzes 4 different lamp distribution strategies, each of which has different performance in the illumination distribution and luminous power. This paper shows that the rectangular line structure of the lamp distribution has the advantages in the illumination and communication. Under this lamps distribution, the average illumination intensity is 497.79[lx]; The mean signal-to-noise ratio (SNR) is 52.99[dB] and the optimal FOV is 65°. The results of simulation show it in the tiny space of the elevator, it can satisfy the demand of illumination and communication.