针对光无线通信受限于照明方式、码间干扰，接收端信噪比低等关键问题，项目提出自适应的多进多出正交频分复用技术的发射接收方式，通过采用导频信号对光无线传输信道进行准确估计，形成完善的信道传输模型，根据信道分析情况来灵活改变各子载波的调制方式及动态分配各子载波的负载，采用对比不同方式的照明及接收方案，得出最佳的照明及接收方式，利用发送接收均衡技术，完成超100Mb/s 基于自适应MIMO OFDM技术的可见光实时传输的理论验证系统。本项目对推进可见光通信的实用化有着重要的科学意义和应用价值。

To combat with the key issues of the visible light communication (VLC) which is limited by illumination mode, inter-symbol interference (ISI), low signal to noise ratio at the receiver, this project proposes adaptive multi-input multi-output (MIMO) orthogonal frequency division multiplexing (OFDM) technique for as the type of transmitting and receiving, and accurately estimates the optical wireless transmission channel by pilot signal. A perfect transmission channel model is given. According to the analysis of channel situation, the modulation of each subcarrier is flexibly changed and the power of each subcarrier is adaptively distributed. The optimum illumination and receiving modes are obtained by comparison of different illumination and receiving modes. The theory system of high speed VLC (>100Mbps) based on the adaptive MIMO-OFDM technique is shown. The scientific significances and application value of this project are important in motivating the practical application of optical communications.