Dimension degradation of fractionally spaced super-exponential algorithm for sparse channel equalisation

JinLiang Bai, ZhiYe Jiang, Feng Wang, Yi Zhou, Heng Sun
2019 The Journal of Engineering  
Fractionally spaced super-exponential (FSSE) algorithm has the disadvantage of computational complexity since it exploits high-order statistics explicitly. The authors propose a dimension degradation technique for FSSE when it is applied to the equalisation of a sparse channel in accordance with the relationship between the coefficients of the cross fourth-order cumulant (CFOC) in FSSE and the channel impulse response. They implement partial updating on the prominent coefficients of the CFOC
more » ... h all the small coefficients remaining unchanged. The computational complexity of the modified FSSE reduces significantly with an acceptable performance loss, and its performance is validated via numerical simulations.
doi:10.1049/joe.2019.0794 fatcat:npewt2nw3bcizcsyqrpf6wkeom