Performance of Distributed Turbo Coded system with selected best relay

In literature, Distributed Turbo Coded (DTC) cooperative system is generally designed with a single relay. The main aim of this paper is to analyze the performance of a DTC scheme with a best relay selected among multi-relays. To achieve this aim, expression for the upper bound of the Bit Error Probability of the proposed DTC scheme is derived over a Rayleigh flat fading channel. The derived performance expression is validated via simulations.