CAJ | 학술논문

目前，对同时同频全双工的自干扰信道特性尚未进行研究．针对这一现状，采用基于网络分析仪的信道测量平台，对室内环境下2．6GHz同时同频全双工自干扰信道特性进行测量与分析．基于实测数据统计分析，得出了传输损耗模型与均方根时延扩展统计模型．结果表明：传输损耗服从断点损耗模型，天线间距在大于1m的传输损耗指数为1.86，天线间距小于1m的传输损耗指数为1.52；均方根时延扩展的统计特性随着天线间距在不同范围而不同，在天线间距大于1m时的均方时延扩展服从lognormal分布，在天线间距小于1m时，RMS时延扩展在不同的天线间距下服从lognormal分布，并且其分布的均值与标准差与天线间距呈现线性关系．
목전，대동시동빈전쌍공적자간우신도특성상미진행연구．침대저일현상，채용기우망락분석의적신도측량평태，대실내배경하2．6GHz동시동빈전쌍공자간우신도특성진행측량여분석．기우실측수거통계분석，득출료전수손모모형여균방근시연확전통계모형．결과표명：전수손모복종단점손모모형，천선간거재대우1m적전수손모지수위1.86，천선간거소우1m적전수손모지수위1.52；균방근시연확전적통계특성수착천선간거재불동범위이불동，재천선간거대우1m시적균방시연확전복종lognormal분포，재천선간거소우1m시，RMS시연확전재불동적천선간거하복종lognormal분포，병차기분포적균치여표준차여천선간거정현선성관계．
Measurements and characterizations are rarely conducted about indoor self-interference channel of CCFD(Co-time Co-frequency full-duplex) .An extensive self-interference channel measurement is performed at 2 .6GHz under typical indoor envi-ronment with channel sounder based on vector network analyzer .By analyzing the measurement data ,the empirical channel charac-teristics such as path loss exponent ,RMS (root-mean-square )delay spread have been extracted .Results show that path loss exponent and RMS delay statistics are different according to antenna separation of transmitter-receiver .When the separation is larger than 1m , the path loss exponent is 1 .86 ,and the RMS delay statistics follow lognormal distribution .When the separation is less than 1m ,the path loss exponent is 1 .52 ,and the RMS delay statistics at different antenna separation follow lognormal distribution whose mean and variance are linear functions of antenna distance respectively .