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ID:28715700
大小:41.00 KB
页数:13页
时间:2018-12-13
《基于某遗传算法地室内光无线通信功率分布优化方案设计设计》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、实用标准文案基于遗传算法的室内光无线通信功率分布优化方案摘要:室内光无线通信(owc)具备频谱资源丰富、功耗低、抗电磁干扰等诸多优势,因而越来越为业界所关注。然而,由于多径传输效应的存在,即使在同一室内房间,同一接收端在不同的接受位置依旧难以获得一致的令人满意的高质量信号。针对这一问题,提出了一种基于遗传算法的动态优化方案,以期降低接受信号功率的波动程度。相应的,给出了基于商用光探测器(视场角为50°)的仿真实验。具体的仿真结果显示该优化方案可以将波动范围(相较于接收到的光信号功率的最大值)从优化之前的50.
2、3%降低至34.6%,同时优化操作对照明功能的影响是可以忽略不计的。关键词:光无线通信;遗传算法;优化;绿色照明;信号覆盖geneticalgorithmbasedpowerdistributionoptimizationschemeforindooropticalwirelesscommunicationxuchun*collegeofcomputerscienceandengineering,xinjianguniversityoffinanceandeconomics,urumqixinjiang830
3、012,chinaabstract:asindooropticalwirelesscommunications(owc)canprovideenormousspectrumsource,lowerpowerneed,immunitytointerferencecausedbyotherradiofrequency(rf)wirelessdevices,itisearningincreasingattention.however,dueto精彩文档实用标准文案multipathtransmission,itis
4、hardtoobtainsatisfyinglyuniformsignalqualityatthereceivingterminalevenforlocationswithinthesameroom.ageneticalgorithmbasedoptimizationschemeisproposedasacandidateapproachforowctoreducethevariabilityofthereceivedpower.andpresentedresultsbasedaroundtheuseofac
5、ommerciallyavailabledetectorwithafov=50degshowthatthedynamicrangeofreceivedpowercanbereducedto34.6%againstthepeakopticalpowerfrom50.3%whiletheimpactonilluminationfunctionisnegligible.asindooropticalwirelesscommunications(owc)ischaracterizedbyenormousspectru
6、msource,lowerpowerneed,immunitytointerferencecausedbyotherradiofrequency(rf)wirelessdevices,ithasattractedanincreasingattentioninthefield.however,duetomultipathtransmission,itishardtoobtainsatisfactoryuniformsignalqualityatthereceivingterminalevenforlocatio
7、nswithinthesameroom.ageneticalgorithmbasedoptimizationschemewasproposedasacandidateapproachforowctoreducethevariabilityofthereceivedpower.andthesimulationresultsbasedupontheuseofacommerciallyavailabledetectorwiththefieldofviewof50degreeshowthatthedynamicran
8、geofreceivedpowercanbereducedto精彩文档实用标准文案34.6%againstthepeakopticalpowerfrom50.3%whiletheimpactonilluminationfunctionisnegligible.keywords:opticalwirelesscommunication(owc);geneticalgorithm;optimizatio
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