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首页> 外文期刊>IEEE Transactions on Consumer Electronics >Performance improvement of OFDM-ROF system with clipping and filtering technique
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Performance improvement of OFDM-ROF system with clipping and filtering technique

机译：利用削波和滤波技术改善OFDM-ROF系统的性能

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The radio-over-fiber(ROF) network has been proved to the best candidate for the wireless-access technology, and the orthogonal frequency division multiplexing (OFDM) technique has been accepted as the core transmitting technology, so the OFDM-ROF sytem is the hot topic in the international academia. An OFDM-ROF system simulation model basing on IEEE 802.16a physical layer protocol had been built up. Special attention had been paid on the high peak-to-average power ratio (PAPR) of the OFDM signal which greatly constrained the performance of the OFDM-ROF system. A clipping and filtering technology had been investigated and simulated. Compared with the Naquist sampled, the two over sampled signal had a better performance in reducing PAPR. The bit error rate (BER) error flow research had been done with transmitting the clipped signal in nonlinear distorted ROF link. And the QAM had been testified for the preferred technique in OFDM-ROF link .
机译：事实证明，光纤无线电（ROF）网络是无线接入技术的最佳候选者，并且正交频分复用（OFDM）技术已被接受为核心传输技术，因此OFDM-ROF系统是国际学术界的热门话题。建立了基于IEEE 802.16a物理层协议的OFDM-ROF系统仿真模型。已经特别注意了OFDM信号的高峰均功率比（PAPR），这极大地限制了OFDM-ROF系统的性能。裁剪和过滤技术已被研究和模拟。与Naquist采样相比，两次过采样的信号在降低PAPR方面具有更好的性能。通过在非线性失真的ROF链路中传输限幅信号，已经完成了误码率（BER）错误流的研究。 QAM已经被证明是OFDM-ROF链路中的首选技术。

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