计算机应用研究2016，Vol.33Issue(3)：832-835,839,5.DOI:10.3969/j.issn.1001-3695.2016.03.043
基于等效 SINR 的 VLC 与 WiFi 垂直切换算法
Novel vertical handoff algorithm based on equivalent SINR between VLC and WiFi
摘要
Abstract
For the indoor visible light communication(VLC)networks,existing handoff decision algorithms couldn’t sense the real quality of service (QoS)provided by different wireless networks,so users couldn’t obtain the best wireless service.To solve the problem,this paper proposed a vertical handoff algorithm based on equivalent signal to interference plus noise ratio (SINR),which used in the VLC and WiFi heterogeneous networks.It converted VLC SINR to equivalent WiFi SINR under the condition that both reached the same maximum rate.Based on SINR conversion,first it calculated the difference between target and service network SINR,did handoff triggering according to comparison of the difference and set threshold.Then considering VLC vulnerability to shadow,it introduced a timer to help to make handoff decision.Experimental results show that the algo-rithm can ensure users always get the maximum rate and have desired adaptability for different VLC network layout and indoor light environment,which makes it more applicable to the indoor visible light communication heterogeneous networks.关键词
可见光通信/异构网络/垂直切换/等效信干噪比Key words
visible light communication/heterogeneous wireless network/vertical handoff/equivalent SINR分类
信息技术与安全科学引用本文复制引用
郑浩天,季新生,黄开枝,赵华..基于等效 SINR 的 VLC 与 WiFi 垂直切换算法[J].计算机应用研究,2016,33(3):832-835,839,5.基金项目
国家“863”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项目 （）
