Peak to Average Power Ratio Reduction in DD-Optical OFDM Systems by Subcarrier Exclusion and Optimal Subcarrier Pairing
K.Ganesh Kumar1M.Palanivelan2Sheila Anand3T.Ilavarasan2
1. M.E Communication Systems, Rajalakshmi Engineering College2. Department of ECE, Rajalakshmi Engineering College3. Rajalakshmi Engineering College
摘要：Orthogonal Frequency Division Multiplexing（OFDM） is a promising modulation technique commonly being used in wired and wireless communications. Recently this technique being implemented in optical fiber communication systems due to its high spectral efficiency, ability to combat both polarization and chromatic dispersions and flexibility in digital signal processing’s. However, a major drawback of OFDM is its high Peak to Average Power Ratio（PAPR） which increases with the number of subcarriers. High PAPR requires high dynamic range of Analog to Digital and Digital to Analog converters and power amplifiers. Consequently, PAPR reduction schemes become an essential part of Optical OFDM（OOFDM） systems. In this paper peak power reduction is achieved by Optimal Subcarrier Pairing（OSP）. Further, to improve Optical Signal to Noise Ratio（OSNR） for the proposed system to give a certain required value of Bit Error Rate（BER）, Subcarrier exclusion technique（SE） is proposed. Combination of subcarrier exclusion and optimal subcarrier pairing will provide overall Direct DetectionOOFDM system requirements.
关键词：
Optimal Subcarrier Pairing（OSP）; Peak to Average Power Ratio（PAPR）; Subcarrier Exclusion（SE）; Optical SNR（OSNR）;
会议名称：
International Conference on Advances in Engineering and Technology （ICAET’2014, Singapore）
会议时间：
2014-03-29
会议地点：
Singapore
- 专辑：
信息科技
- 专题：
电信技术
- 分类号：
TN929.1
引文网络
- 参考文献
- 引证文献
- 共引文献
- 同被引文献
- 二级参考文献
- 二级引证文献
相关推荐
- 相似文献
- 读者推荐
- 相关基金文献
- 关联作者
- 相关视频
