Abstract:
In this paper we study the downlink of a hybrid analog-digital massive multi-user MIMO (MU-MIMO) system. An efficient hybrid strategy is proposed, where the analog beamfo...Show MoreMetadata
Abstract:
In this paper we study the downlink of a hybrid analog-digital massive multi-user MIMO (MU-MIMO) system. An efficient hybrid strategy is proposed, where the analog beamforming matrices are determined using a channel matching criterion while the digital beamforming consists of pre-filters and post-filters. The digital post-filters are computed using traditional linear MU-MIMO strategies together with water-filling based power allocation using the effective channels. Simulation results show that the proposed hybrid analog-digital solutions achieve a good performance compared to their corresponding unconstrained digital solutions.
Date of Conference: 10-13 July 2016
Date Added to IEEE Xplore: 19 September 2016
ISBN Information:
Electronic ISSN: 2151-870X