基于自适应比特功率分配算法的光正交频分复用实验研究
he Experiment Research of Optical-OFDM Experiment System Based on Adaptive Bit Power Allocation
综合接入网、宽带化光纤接入网是未来接入网的发展方向，塑料光纤（POF）技术则为光接入网提供了一个低成本的解决方案。但塑料光纤具有带宽较窄，模式色散大的缺点。为了在光接入网中提高高带宽利用率和色散容限，本文在光接入网中使用自适应比特分配算法的OFDM调制方式，利用OFDM系统极佳的频带利用率特性，提高了光接入系统的带宽利用率，并降低了系统的误码率。在搭建的实验系统中，成功的在不足2.5GHz带宽的光信道中完成了10Gb/s的光OFDM系统, 从而证明了自适应比特分配算法和光正交频分复用技术的有效性和可行性。
he developments of access network are Integrated Services Digital Network (ISDN) and broadband optical access network. POF is a Low-cost solution for optical access network. However, POF have some shortcomings such as narrowband, big mode dispersion. In order to increase the band utilization and dispersion tolerance in optical access network, Adaptive Bit Power Allocation of OFDM is introduced in optical access network. The high bandwidth efficiency of OFDM is used to increase the band utilization of optical access network. The bit error rate is reduced too. In the designed system, 10Gb/s optical OFDM system is implemented in a 2.5GHz band. It is proved that Adaptive Bit Power Allocation and optical OFDM are validity and feasibility.
孙山林
光电子技术通信
光正交频分复用自适应比特功率分配算法接入网
Optical-OFDMdaptive Bit Power Allocationccess Network
孙山林.基于自适应比特功率分配算法的光正交频分复用实验研究[EB/OL].(2009-10-12)[2025-08-18].http://www.paper.edu.cn/releasepaper/content/200910-127.点此复制
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