陈烙,邵宇丰,陈福平,申世鲁,王安蓉,赵云杰,罗映祥.子载波OFDM毫米波接入信号的光学产生与应用研究[J].光电子激光,2017,28(7):722~727 |
子载波OFDM毫米波接入信号的光学产生与应用研究 |
Optical generation and application of millimeter-wave OFDM signals with subca rr iers |
投稿时间:2016-10-18 |
DOI: |
中文关键词: 光载无线通信(RoF) 全双工 子载波 正交频分复用(OFDM) 毫米波 |
英文关键词:radio over fiber (RoF) full duplex subcarriers orthogonal frequency divisio n multiplexing (OFDM) millimeter wave |
基金项目:国家自然科学基金(6117064)、重庆市科委前沿与应用基础研究(cs tc2014jcyjA40046、cstc2016jcyjA1233)、重庆市高校创新团队建设计划(KJTD201320)、重庆市研究生科研(CYS15225、CYS16225)和重庆市万州区科技人才专项资助项目 (重庆三峡学院 电子与信息工程学院,重庆 404100) |
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中文摘要: |
研究了一种下行链路采用64 阶正交幅度调制-正交频分复用(QAM-OFDM)信号和上行链路采用8阶相移键控(PSK)-OFDM 信号的全双工光载无线通信(RoF)系统。其中,下行链路承载的是60GHz不同子载波数量(64,256)的 光生64QAM-OFDM毫米波接入信号。数值模拟仿真证明:光生 64QAM-OFDM毫米波接入信号 的峰均比(PAPR)随着子载波数量的增加而增大;当下行链 路接收功率为-18dBm时,相比较其它3种子载波数量而言, 子载波数为256QAM-OFDM毫米波接入信号 的接收灵敏度最好,误码率(B ER)近似为10-3.7;当上行链路的接收功率高于 -28.5dBm时,接收信号的BER在 10-3以下。 |
英文摘要: |
A full duplex radio over fiber (RoF) system,including the downlink with 64quadr ature amplitude modulation-orthogonal frequency division multiplexing (QAM-OFD M) modulated signals are analyzed and the uplink with 8plase shift keying orthogonal frequency division multiplexing (PSK -OFDM) modulated signals,of which downlink conveys a 60GHz millimeter-wave wi th different numbers of subcarriers (as the number is 64,8,256,2).The simula tion results show that the peak-to-average power ratio (PAPR) increases with asce nding subcarrier quantity.The bit error rate (BER) of the downlink signals with 256subcarriers is cl ose to 10-3.7 when the optical receiver power is - 18dBm,and in this case the receiving sensitivity is the best of all.For uplink ,the BER is lower than 10-3 when the receiver p ower is higher than -28.5d Bm. |
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