We have recently developed a preconditioning scheme that can be viewed as a hybrid of incomplete factorization and sparse approximate inversion methods. This hybrid scheme attempts to deliver the strengths of both types of preconditioning schemes to accelerate the convergence of Conjugate Gradients (CG) on multiprocessors. We provide an overview of our algorithm and report on initial results fo...

Achieving sound communication systems in Under Water Acoustic (UWA) environment remains challenging for researchers. The scheme is complex since these acoustic channels exhibit uneven characteristics such as long propagation delay and irregular Doppler shifts. development of machine deep learning algorithms has reduced the burden achieving reliable good schemes underwater environment. This pape...