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Constrained coding for quasi-linear optical data transmission systems
DOI:10.1109/JLT.2006.884973.png)
摘要
En 中文
This paper considers the application of constrained coding to 40-Gb/s dispersion-managed single-channel optical communication systems limited by intrachannel four-wave mixing (IFWM). It is shown that when transmitted sequences obey the so-called (2, infinity) constraint, runlength-limited codes can be designed to not only suppress ghost pulse formation but also improve the data rate by as much as 50% without increasing the transmission bandwidth. Since IFWM is a highly pattern-dependent effect, coding schemes with certain characteristics are preferable. Two different codes with simple encoding and decoding algorithms are constructed, and their performance is analyzed and compared to that of a realistic benchmark system. One of the codes turns out to be consistently better than the other due to its superior statistical properties. The qualitative conclusions are confirmed by numerical simulations. An extension of the method to multichannel links is also considered, and similar gain in data rate is demonstrated.
Keyword:
constrained coding
fiber-optic communications
ghost pulses
intrachannel four-wave mixing (IFWM)
期刊
IF:
4.8
论文数:
1.7W
被引数:
3.8W
机构
暂无机构信息
引用论文
Higher bit rates for dispersion-managed soliton communication systems via constrained coding通过约束编码实现色散管理孤子通信系统的更高比特率
Analysis of four-wave mixing between pulses in high-data-rate quasi-linear subchannel-multiplexed systems
OPTICS LETTERS
IF3.3
Generation and dynamics of ghost pulses in strongly dispersion-managed fiber-optic communication systems
OPTICS LETTERS
IF3.3

