Maximum-Likelihood Detection in Few-Mode Fiber Transmission With Mode-Dependent Loss

被引：24
|
作者：
Lobato, Adriana [1 ]
Ferreira, Filipe [2 ,3 ]
Inan, Beril [4 ]
Adhikari, Susmita [5 ]
Kuschnerov, Maxim [6 ]
Napoli, Antonio [6 ]
Spinnler, Bernhard [6 ]
Lankl, Berthold [1 ]
机构：
[1] Univ Fed Armed Forces, D-85579 Munich, Germany
[2] Nokia Siemens Networks Portugal, P-2720093 Amadora, Portugal
[3] Inst Telecomunicacoes, P-3810193 Aveiro, Portugal
[4] Tech Univ Munich, Inst Commun Engn, D-80333 Munich, Germany
[5] Univ Kiel, Chair Commun, D-24098 Kiel, Germany
[6] Nokia Siemens Networks Opt GmbH, D-81541 Munich, Germany
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2013年 / 25卷 / 12期
关键词：
Few-mode fibers; maximum-likelihood detection; minimum mean square error equalization; mode coupling; mode-dependent loss; optical fiber communication; spatial-division multiplexing; zero-forcing equalization; RECEIVERS;
D O I：
10.1109/LPT.2013.2257724
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this letter, the performance of maximum-likelihood (ML) detection is evaluated and compared with the zero-forcing (ZF) and minimum mean square error (MMSE) equalizers for a 3 x 158-Gb/s mode-division multiplexed dual-polarization quadrature phase shift keying orthogonal frequency division multiplexing transmission impaired by mode-dependent loss. The receiver schemes are compared in terms of performance and complexity. The simulations show that the ML approach outperforms both ZF and MMSE equalization for strongly coupled modes. However, the complexity of the ML detection is significantly higher and increases faster with the number of modes used for transmission and the modulation format order.
引用
收藏
页码：1095 / 1098
页数：4
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