基于色移键控的联合编码调制实验设计

Experimental design of the joint coded-modulation based on color-shift keying

结合可见光通信这一未来高速无线通信的关键技术,提出了一种基于色移键控的联合编码调制实验设计方案。首先,对引入三角形划分方法构建三维多强度平面星座进行研究,提出了基于目标色约束的多强度平面色移键控星座设计方法。其次,给出了实验方案的建模,并进一步提出基于集合划分和有限状态机的高编码增益联合编码调制方法。最后,对所提方案的最小均方欧式距离进行了计算与分析。仿真结果表明,所提的联合编码调制方案显著改善了可见光通信系统的误码率性能。

Combining visible light communication,one of the key technologies of future high-speed wireless communication,this paper proposes a joint coded-modulation scheme that is based on the color-shift keying modulation.First,the construction of three-dimensional multiple intensity planes using triangle partition method is studied,the constellation design method is proposed which following the multiple intensity planes under the constraint of target color.Then,the optimization problem of the proposed scheme is designed,the joint coded-modulation scheme with high coding gain is proposed,which is based on set partitioning and finite-state machine.Finally,the minimum square Euclidean distance of the proposed scheme is calculated and analyzed.The simulation results confirm that the proposed joint coded-modulation scheme significantly improves the bit error rate of visible light communication system.