Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multi-Gateway Cooperation in Multibeam Satellite Systems   Multibeam systems with hundreds of beams have been recently deployed in order
to provide higher capacities by employing fractional frequency reuse.
Furthermore, employing full frequency reuse and precoding over multiple beams
has shown great throughput potential in literature. However, feeding all this
data from a single gateway is not feasible based on the current frequency
allocations. In this context, we investigate a range of scenarios involving
beam clusters where each cluster is managed by a single gateway. More
specifically, the following cases are considered for handling intercluster
interference: a) conventional frequency colouring, b) joint processing within
cluster, c) partial CSI sharing among clusters, d) partial CSI and data sharing
among clusters. CSI sharing does not provide considerable performance gains
with respect to b) but combined with data sharing offers roughly a 40%
improvement over a) and a 15% over b).

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The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
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The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
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The categories of this paper are: q-alg
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The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
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The categories of this paper are: chao-dyn
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The categories of this paper are: funct-an
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-ex
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The categories of this paper are: mtrl-th
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The categories of this paper are: econ