Distributed Power Control in Downlink Cellular Massive MIMO Systems

Trinh Van Chien
2019 Zenodo  
This paper compares centralized and distributed methods to solve the power minimization problem with qualityof- service (QoS) constraints in the downlink (DL) of multicell Massive multiple-input multiple-output (MIMO) systems. In particular, we study the computational complexity, number of parameters that need to be exchanged between base stations (BSs), and the convergence of iterative implementations. Although a distributed implementation based on dual decomposition (which only requires
more » ... only requires statistical channel knowledge at each BS) typically converges to the global optimum after a few iterations, many parameters need to be exchanged to reach convergence.
doi:10.5281/zenodo.2550557 fatcat:jzssqrgxzzgv7dgka2xszv7tga