A review on optimisation of turbo code iteration with channel estimation in ultra-wideband channel

This paper describes a review on minimizing stopping turbo iteration methods with channel estimation in UWB channel. Most existing stopping criteria for turbo iteration will cause degradation to the system, computational complex. In this paper, sign-change-ratio (SCR) criterion are being proposed for stopping iteration while using Least Square (LS) estimation technique to estimate the channel parameter of turbo codes maximum iteration. It is believed that the propose combination method can minimizing stopping turbo iteration, it would be able avoid any unwanted condition like computation delay, wasted power consumption as the iteration stages keep increasing when it reach the maximum peak of the performances.