Michael Ohm

TL;DR: In this paper, a ground-based wireless cellular communication system providing in-flight broadband mobile communication services is described, which includes an antenna array using two-dimensional-beamforming for serving at least one airplane in the space covered by the at least 1 cell using spatial division multiple access (SDMA).

TL;DR: The performance of LTE Release 8 is evaluated as a baseline and advanced concepts currently in discussion such as cooperative MIMO based on system-level simulations, and measurements in the laboratory and a multisite field testbed within the EASY-C project are evaluated.

TL;DR: In this article, a method for multi-antenna signal processing at an antenna element arrangement belonging to a transceiver of a radio communication network is presented, where complex antenna weights are applied to said antenna elements.

TL;DR: In this article, a method for performing communications in a wireless communication network includes receiving mobility information about at least one moving mobile station in a mobility server of the wireless communications network, using the mobility information from the mobility server for calculating antenna weights to be applied to antenna elements of an antenna array for steering a beam generated by the antenna array to the moving mobile stations preferably using space division multiple access, SDMA.

TL;DR: In this article, the authors proposed a ground-based wireless cellular communication system for providing in-flight broadband mobile communication services, comprising: at least one ground base station (2) adapted for generating at least 1 cell (C1, C2) defining a solid angle of the space surrounding the base station, and the ground-bounded base station further comprising at least 5 antenna array (5a, 5a) using two-dimensional-beamforming (2DBF) for generating 1 beam (6a,c, 7a-c) for serving at least