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Distributed Power Control in Downlink Cellular Massive MIMO Systems | VDE Conference Publication | IEEE Xplore

Distributed Power Control in Downlink Cellular Massive MIMO Systems

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Abstract:

This paper compares centralized and distributed methods to solve the power minimization problem with qualityof- service (QoS) constraints in the downlink (DL) of multicel...Show More

Abstract:

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 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.
Date of Conference: 14-16 March 2018
Date Added to IEEE Xplore: 14 June 2018
Print ISBN:978-3-8007-4541-8
Conference Location: Bochum, Germany