Fiber Nonlinearity and Tight Filtering Impairments Mitigation of DP-16QAM Nyquist-WDM Systems Using Multiplier-free MAP Detection

Tight filtering and fiber Kerr effect both cause severe pattern-dependent distortions that need to be combated to achieve higher spectral efficiency (SE), larger capacity and greater achievable transmission distance in the next generation wavelength division multiplex (WDM) optical transmission system. In this paper, a novel multiplier-free maximum-a-posteriori-probability (MAP) detection scheme i...