欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
针对光正交频分复用（OFDM）系统中峰值平均功率比（PAPR）较高的缺点，研究了削波法降低PAPR的原理；根据这一原理，通过大量数据分析计算，建立了基于MQAM调制下光OFDM系统中的削波噪声模型；由所建立的模型，直接计算得出不同调制下光OFDM系统削波后的误符率。仿真结果表明，每种进制调制下，根据本文建立的削波噪声模型与OFDM具体系统模型仿真所得到的两条曲线基本吻合，并且这两条曲线在不同削波比下的最大均方误差（MSE）不超过1．26×10-2。这充分论证了所建立的削波噪声模型的可行性与适用性。
英文摘要：
According to the problem of the high peak-to-average power ratio （PAPR） in optical orthogonal frequency division multiplexing （OFDM） systems,the principle of PAPR reduction method by clipping is studied. Based on this prineiple,a clipping noise model of optical OFDM systems in the MQAM modulation is established by analyzing and computing a large number of data. According to the established model,the error-symbol-rates of optical OFDM systems in different modulations can be directly calculated after clipping. The simulation results show that the curve of the established clipping noise model agrees well with that of the simulation model of optical OFDM systems in different modulations. Furthermore,the maximum value of the mean square error （MSE） between the two curves in different clipping ratios is not more than 1.26 × 10-2 ,Which demonstrates the feasibility and applicability of the established clipping noise model.
同期刊论文项目
同项目期刊论文
An Optical Multicast Packet Switching Architecture Shared with Limited-Range Multi-wavelength conver
A Delay-Constrained Low-cost Optical Multicast Routing Algorithm Bsed on Imporve Harmony Search Algo
A novel contention resolution scheme of hybrid shared wavelength conversion for optical packet switc
An optical packet contention resolution supporting QoS differentiation with LRWC wavelength converte
Shortest path first to optimize the optical multicast routing cost and wavelength consumption for WD
A distributed backoff-channel deflection algorithm with load balancing for optical burst switching n
Comparative analysis on the performance of two concatenated codes for high-speed long-haul optical c
A novel segment-shared protection algorithm based on dynamic domain-sequencing scheme for multi-doma
A novel decoding algorithm based on the hierarchical reliable strategy for SCG-LDPC codes in optical
Algebraic criteria for second-order global consensus in multi-agent networks with intrinsic nonlinea
期刊信息
位置：