A power allocation scheme in two-hop multi-node cooperative communication system

Power allocation is one of the key technologies in wireless communication system. The research on how to improve system performances via power allocation is important for cooperative communication system. In this paper, firstly, we analyze a multi-node cooperative communication system, then the paper aims at proposing a power allocation scheme. Through analysis and simulation study, the proposed scheme is able to improve system capacity and reduce outage probability compared to the traditional power allocation scheme. At last, system performances with different relay positions are compared.