Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Interference and Coverage Analysis of mmWave Inter-Vehicle Broadcast
  with Directional Antennas   Thanks to the availability of large bandwidth and high-gain directional
antennas at the millimeter-wave (mmWave) bands, mmWave communications have been
considered as one of the primary solutions to meet the high data rates needs in
vehicular networks. Unicast in mmWave vehicle-to-vehicle (V2V) communications
has been well-studied, but much less attention has been paid to V2V broadcast
which is required by many V2V applications such as active safety. To fill the
gap, this paper systematically investigates mmWave V2V broadcast by considering
the unique properties of mmWave signal propagation in V2V environments as well
as the impacts of directional antennas and interference. Based on
widely-accepted, high-fidelity system models, we mathematically analyze the
receiver-side signal-to-interference-plus-noise-ratio (SINR) and broadcast
coverage, and we study the impacts of blockage, inter-vehicle distance, vehicle
density and beam pattern. Through comprehensive numerical analysis, we find out
that, instead of a single unique optimal beamwidth, there exists an optimal
range of beamwidth, in which the beamwidths have similar performance and can
maximize the coverage. We also find out that the selection of carrier sensing
range plays an important role as it highly influences the performance of the
whole vehicular networks. Our analysis provides unique insight into mmWave V2V
broadcast, and it sheds light on designing effective V2V broadcast protocols.

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The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
3
The categories of this paper are: physics
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The categories of this paper are: patt-sol
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The categories of this paper are: dg-ga
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The categories of this paper are: adap-org
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The categories of this paper are: gr-qc
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The categories of this paper are: atom-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: eess