【摘要】 根据无线光通信信道的特点,提出了一种改进的EFEC(Enhanced FEC)级联码构造结构——外码+外交织器+内码+内交织器。在这种改进的结构下,研究了RS级联码在无线光通信信道中的纠错性能,以及交织器在级联码中对纠错性能的影响。得到了一种适合于无线光通信信道的高编码增益的级联码方案——RS(255,2 39)+外交织器+RS(31,21)+内交织器,编码增益改善了2～16dB。更多还原

【Abstract】 According to the wireless optical communication channel characteristics,this paper proposed an improved EFEC(Enhanced FEC) concatenated codes constructed structures--outer code+outer interleaver+ inner codes+inner interleaver.In this improved structure,the RS concatenated codes error-correcting performance was studied in wireless optical communication channel,and the error-correcting performance under the influence of interleaver in the concatenated code.The high coding gain concatenated codes program was found——RS(255,239)+outer interleaver+RS(31,21)+inner interleaver,which was most suitable to the wireless optical communication channel,and its coding gain was enhanced 2～16dB.更多还原