Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: All-Digital Massive MIMO Uplink and Downlink Rates under a Fronthaul
  Constraint   We characterize the rate achievable in a bidirectional quasi-static link
where several user equipments communicate with a massive multiple-input
multiple-output base station (BS). In the considered setup, the BS operates in
full-digital mode, the physical size of the antenna array is limited, and there
exists a rate constraint on the fronthaul interface connecting the (possibly
remote) radio head to the digital baseband processing unit. Our analysis
enables us to determine the optimal resolution of the analog-to-digital and
digital-to-analog converters as well as the optimal number of active antenna
elements to be used in order to maximize the transmission rate on the
bidirectional link, for a given constraint on the outage probability and on the
fronthaul rate. We investigate both the case in which perfect channel-state
information is available, and the case in which channel-state information is
acquired through pilot transmission, and is, hence, imperfect. For the second
case, we present a novel rate expression that relies on the generalized
mutual-information framework.

35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
25
The categories of this paper are: patt-sol