MAMSK-OFDM Signal for RoF Access With Increased Tolerance Toward Frequency Offset
MAMSK-OFDM Signal for RoF Access With Increased Tolerance Toward Frequency Offset
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DOI：
10.1109/lpt.2013.2239637
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发表时间：
2013-01
影响因子：
2.6
通讯作者：
Lijia Zhang;Bo Liu;X. Xin;Yongjun Wang
中科院分区：
文献类型：
--
作者：
Lijia Zhang;Bo Liu;X. Xin;Yongjun Wang
提出了一种用于60 GHz光载无线接入系统的多幅度最小频移键控（MAMSK）正交频分复用（OFDM）信号。它可以增加对OFDM信号的频率偏移的容忍度，由于更快的滚降旁瓣。在实验中，一个3.21-Gb/s的2AMSK-OFDM信号成功地通过22公里的单模光纤（SMF）和5米的空中链路传输。与传统的8 QAM-OFDM信号相比，2AMSK-OFDM的信号干扰比（SIR）在频偏为0.15时提高了11.5dB。在归一化频偏（FO）为0.2的情况下，性能提高了1.7 dB。
A novel multi-amplitude minimum shift keying (MAMSK) orthogonal frequency division multiplexing (OFDM) signal is proposed for 60-GHz radio-over-fiber (RoF) access system. It can increase the tolerance toward frequency offset of an OFDM signal due to the faster roll-off side-lobe. In the experiment, a 3.21-Gb/s 2AMSK-OFDM signal is transmitted over 22 km single mode fiber (SMF) and 5 m air link successfully. Compared with a conventional 8QAM-OFDM signal, the signal-to-interference ratio (SIR) of 2AMSK-OFDM is improved by 11.5 dB at a frequency offset of 0.15. The performance is improved by 1.7 dB under a normalized frequency offset (FO) of 0.2.