摘要
可见光通信技术是未来室内无线通信的一种极具潜力的解决方案。文章针对不同外部干扰类型对光MIMO(多输入多输出)系统性能的影响展开研究。首先,基于室内可见光MIMO系统模型,推导出了光MIMO系统性能误码率的表达式,分析了不同因素与光MIMO系统误码率之间的关系;然后根据该表达式,详细分析了不同干扰类型对光MIMO系统误码率的影响;最后,对实际情况中的干扰影响进行了模拟仿真,并通过对仿真结果的分析给出了干扰区分和切换判决的依据。
Visible Light Communication (VLC)technology is considered to be a promising solution to the future indoor wireless communications.In this paper,we investigate the effects of various external interferences on the performance of optical Multi-ple-Input Multiple-Output (MIMO)systems.On the basis of an indoor MIMO VLC system model,we first derive the system BER expression and analyze the relationships between the BER and different factors.Then,in line with this expression,we an-alyze in detail the effects of different types of interferences on the BER.Finally,we simulate the interference scenarios in prac-tical conditions and give the basis for distinguishing different interferences and making reasonable handover decision on the basis of the simulation result analysis.
出处
《光通信研究》
北大核心
2015年第4期53-57,共5页
Study on Optical Communications
基金
国家"八六三"计划资助项目(2013AA013603)
东南大学移动通信国家重点实验室开发研究基金资助课题(2013D09)
