Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Distributed Multi-RF Chain Hybrid mmWave Scheme for Small-cell Systems   This paper proposes a distributed hybrid millimeter wave (mmWave) scheme to
exploit the structure of a Densely Deployed Distributed (DDD)
small-cell-base-stations (SBSs) system for serving multiple users in a
geographic area. Both the SBSs and the users are equipped with full access
hybrid architectures with multi-antenna arrays and multiple radio frequency
chains. Unlike the conventional cellular networks where users receive data
streams from their nearest BSs, the users in our proposed scheme simultaneously
receive data streams from different SBSs. With appropriate design of analog
beamformers, co-channel multi-data-stream interference can be mitigated and the
extra spatial degrees of freedom induced by the geographic distributed SBSs are
exploited for data multiplexing. Analytical and simulation results show that
the proposed scheme can improve the system sum-rate considerably, especially
when the number of scattering components in millimeter wave channels is
limited.

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
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga