Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Virtualization of Multi-Cell 802.11 Networks: Association and Airtime
  Control   This paper investigates the virtualization and optimization of a multi-cell
WLAN. We consider the station (STA)-access point (AP) association and airtime
control for virtualized 802.11 networks to provide service customization and
fairness across multiple internet service providers (ISPs) sharing the common
physical infrastructure and network capacity. More specifically, an
optimization problem is formulated on the STAs transmission probabilities to
maximize the overall network throughput, while providing airtime usage
guarantees for the ISPs. Subsequently, an algorithm to reach the optimal
solution is developed by applying monomial approximation and geometric
programming iteratively. Based on the proposed three-dimensional Markov-chain
model of the enhanced distributed channel access (EDCA) protocol, the detailed
implementation of the optimal transmission probability is also discussed. The
accuracy of the proposed Markov-chain model and the performance of the
developed association and airtime control scheme are evaluated through
numerical results.

25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat
28
The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an
24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
16
The categories of this paper are: stat