4
ANFIS-Based Channel Equalizer
The analysis of noise characteristics and modeling of a suitable equalizer for the nonlinear time-invariant mobile cellular channel is the focal theme of this book. This chapter is devoted to analyzing the functioning of the channel equalizer based on an Adaptive Network-based Fuzzy Inference System (ANFIS). It may be noted that the equalization of wireless mobile channels is a nonlinear problem, so a nonlinear solution is more appropriate.
We have to design the fuzzy if-then else rules based on the channel characteristics, namely, variances of signal, noise, co-channel (CCI) and adjacent channel interferences (ACI) as well as the transmitted signal (input)-received signal (output) mapping. The equalizer ...
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