Joint antenna and power allocation scheme for massive MIMO relaying network

Abstract

Recently, the increasing number of antennas makes the resource allocations of the massive multi-input multi-output (MIMO) networks become more complicated, and diminish the advantages of higher space diversity. In this paper, we focus on antenna selection with the uplink feedback with the signaling overhead reduced, as well as the power allocation scheme aiming of the spectrum efficiency (SE) improving. It makes the complexity too high to regard the antenna selection and power allocation as one problem, so we divide the problem into two parts. And to solve the sub-problem, we present a joint antenna and power allocation (JAPA) scheme. By this approach, we reduce the feedback overhead and improve SE with lower complexity than conventional algorithms. SE of all the users with different number of antenna and node pairs are simulated, and the results demonstrate that our proposed scheme performs well in the total power consumption and SE with user scheduling participated.