Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Outage Performance of Uplink Rate Splitting Multiple Access with
  Randomly Deployed Users   Rate splitting multiple access (RSMA) is a promising solution to improve
spectral efficiency and provide better fairness for the upcoming
sixth-generation (6G) networks. In this paper, the outage performance of uplink
RSMA transmission with randomly deployed users is investigated, taking both
user scheduling schemes and power allocation strategies into consideration.
Specifically, the greedy user scheduling (GUS) and cumulative distribution
function (CDF) based user scheduling (CUS) schemes are considered, which could
maximize the rate performance and guarantee access fairness, respectively.
Meanwhile, we re-investigate cognitive power allocation (CPA) strategy, and
propose a new rate-fairness oriented power allocation (FPA) strategy to enhance
the scheduled users rate fairness. By employing order statistics and stochastic
geometry, an analytical expression of the outage probability for each
scheduling scheme combining power allocation is derived to characterize the
performance. To get more insights, the achieved diversity order of each scheme
is also derived. Theoretical results demonstrate that both GUS and CUS schemes
applying CPA or FPA strategy can achieve full diversity orders, and the
application of CPA strategy in RSMA can effectively eliminate the secondary
user's diversity order constraint from the primary user. Simulation results
corroborate the accuracy of the analytical expressions, and show that the
proposed FPA strategy can achieve excellent rate fairness performance in high
signal-to-noise ratio region.

16
The categories of this paper are: stat
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
32
The categories of this paper are: atom-ph