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Dimension degradation of fractionally spaced super‐exponential algorithm for sparse channel equalisation
- Source :
- The Journal of Engineering (2019)
- Publication Year :
- 2019
- Publisher :
- Institution of Engineering and Technology (IET), 2019.
-
Abstract
- 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 with 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.
- Subjects :
- cfoc
dimension degradation technique
Computational complexity theory
cross fourth-order cumulant
Energy Engineering and Power Technology
equalisers
Higher-order statistics
higher order statistics
Dimension (vector space)
channel impulse response
prominent coefficients
fractionally
Transient response
Cumulant
Mathematics
computational complexity
sparse channel equalisation
blind equalisers
channel estimation
General Engineering
transient response
Exponential function
lcsh:TA1-2040
super-exponential algorithm
high-order statistics
lcsh:Engineering (General). Civil engineering (General)
modified fsse
Algorithm
Software
Communication channel
Degradation (telecommunications)
Subjects
Details
- ISSN :
- 20513305
- Volume :
- 2019
- Database :
- OpenAIRE
- Journal :
- The Journal of Engineering
- Accession number :
- edsair.doi.dedup.....a0261ce80814b1c5d92eb6a4e0ccc719