Abstract
This paper evaluates Massive MIMO (Multiple-Input- Multiple-Output) at 2.6 GHz in urban macro-cellular and pico-cellular environments. Massive MIMO is a key 5G technology with the potential to deliver a step change in bandwidth and energy efficiency. Building on experimental results from our Massive MIMO testbed, this paper explores the potential to further enhance capacity via the application of novel power control and user scheduling algorithms. This study makes use of a 3D ray-tracing channel model. The Massive MIMO BS drives 128 antenna elements and simultaneously supports up to 48 single-antenna user terminals (or 24 dual-antenna terminals). Realistically achievable throughput is quantified in terms of cell size, number of user terminals, rank of the users and implementation of user grouping and power control.
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