Adaptive Bit allocation algorithm based on unsaturated bandwidth of multimode fiber for optical OFDM system

Adaptive Bit allocation algorithm based on unsaturated bandwidth of multimode fiber for optical OFDM system
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光OFDM系统中基于多模光纤不饱和带宽的自适应比特分配算法

DOI:
10.1016/j.optcom.2011.07.032
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发表时间:
2011-10
影响因子:
2.4
通讯作者:
Hu Guijun
Hu Guijun
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Wu Chao;Zhang Lili;Shi Jian;Hu Guijun

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针对正交频分复用(OFDM)多模光纤通信系统,提出了一种自适应比特分配算法,以充分利用多模光纤在高频区的无限带宽。该算法突破了以往只能在固定带宽内分配比特的局限性,并通过仿真验证了其有效性。与贪婪算法相比,新算法易于实现,并有效地降低了每个子载波的误比特率。
An adaptive bit allocation algorithm for Orthogonal Frequency Division Multiplexing (OFDM) multimode fiber communication system is proposed in this paper, aimed at utilizing the infinite bandwidth of multimode fiber in high frequency region. The algorithm breaks through the limitation that bits are formerly allocated only in fixed bandwidth, and is proved to be effective by simulation. Compared with greedy algorithm, new algorithm is easy to implement, and lowers bit error rate (BER) of each subcarrier effectively.
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