Ali H. Sayed

TL;DR: A computationally efficient order-recursive algorithm is derived that achieves the approximating a long FIR filter by a reduced-parameter stable pole-zero filter with high accuracy and is applied to reduce the implementation complexity of the decision feedback equalizer's long FIR feedforward and feedback filters encountered in high-speed data transmission on digital subscriber loops.

TL;DR: This work provides a short proof that establishes the linear (exponential) convergence of the algorithm for smooth strongly-convex cost functions and study its relation to the non-incremental implementation of the primal-descent dual-ascent gradient method.

TL;DR: This note develops robust filters for time-varying uncertain discrete-time systems based on a data regularization solution and they enforce a minimum state-error variance property.

TL;DR: Adaptive structures that are based on the trigonometric transforms, discrete cosine transform and discrete sine transform, and on the discrete Hartley transform are developed.

TL;DR: Numerical results indicate that the beamforming method is more attractive than the spatial multiplexing method for the two-way communications.