Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Modelling and Analysis of the Distributed Coordination Function of IEEE
  802.11 with Multirate Capability   The aim of this paper is twofold. On one hand, it presents a
multi-dimensional Markovian state transition model characterizing the behavior
at the Medium Access Control (MAC) layer by including transmission states that
account for packet transmission failures due to errors caused by propagation
through the channel, along with a state characterizing the system when there
are no packets to be transmitted in the queue of a station (to model
non-saturated traffic conditions). On the other hand, it provides a throughput
analysis of the IEEE 802.11 protocol at the data link layer in both saturated
and non-saturated traffic conditions taking into account the impact of both
transmission channel and multirate transmission in Rayleigh fading environment.
Simulation results closely match the theoretical derivations confirming the
effectiveness of the proposed model.

2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat