Predictive FTF Adaptive Algorithm for Mobile Channels Estimation

Provided by: Scientific Research
Topic: Mobility
Format: PDF
The aim of this paper is to improve the performance of Fast Transversal Filter (FTF) adaptive algorithm used for mobile channel estimation. A multi-ray Jakes mobile channel model with a Doppler frequency shift is used in the simulation. The channel estimator obtains the Sampled channel Impulse Response (SIR) from the predetermined training sequence. The FTF is a computationally efficient implementation of the Recursive Least Squares (RLS) algorithm of the conventional Kalman filter. A stabilization FTF is used to overcome the problem caused by the accumulation of roundoff errors, and, in addition, degree-one prediction is incorporated into the algorithm (Predictive FTF) to improve the estimation performance and to track changes of the mobile channel.

Find By Topic