Performance analysis of AF, DF and DtF relaying techniques for enhanced cooperative communication

In recent times, cooperative communication has gained major importance due to the fact that it exploits spatial diversity and produces capacity/performance gain over usual single-input single-output (SISO) systems. A moveable station having only one antenna can cooperate with a close mobile station having only one antenna in multi-user network to produce the effect of virtual multiple antenna system, reduce the complication caused by the system having more than one antenna. Apart from the miniature size and power limitations a movable station can be benefíciated. In this paper, we have chosen two cooperative communication protocols namely Amplify and forward (AF); and Decode and Forward for Diamond structure. All the previous work was general and was carried out on collinear geometry.