A joint uplink/downlink connection admission control in WLAN/cellular integrated systems

Hyung Taig Lim, Younghyun Kim, Insun Jang, Sangheon Pack, Chul Hee Kang

Research output: Contribution to journalArticle

Abstract

Although different connection admission control schemes in wireless local area network (WLAN)/cellular integrated systems have been proposed in the literature, they do not exploit unique features in uplink and downlink connections. In this paper, we propose a joint uplink/downlink connection admission control scheme in WLAN/cellular integrated systems, in which thresholds for admission control are adaptively determined to maximize the network capacity depending on the uplink and downlink characteristics. We develop an analytical model for the connection blocking cost by means of multi-dimensional Markov chains and present an optimization problem for the thresholds to minimize the blocking cost. Analytical and simulation results show that the proposed connection admission control scheme can reduce the number of blocked connections compared with the WLAN-first scheme.

Original languageEnglish
Pages (from-to)2788-2800
Number of pages13
JournalMathematical and Computer Modelling
Volume57
Issue number11-12
DOIs
Publication statusPublished - 2013 Jun 1

Fingerprint

Wireless Local Area Network (WLAN)
Admission Control
Cellular Systems
Uplink
Integrated System
Wireless local area networks (WLAN)
Access control
Costs
Markov processes
Analytical Model
Analytical models
Markov chain
Maximise
Optimization Problem
Minimise
Simulation

Keywords

  • Blocking cost
  • Cellular/WLAN interworking
  • Connection admission control
  • Markov chain
  • Uplink/downlink characteristics

ASJC Scopus subject areas

  • Computer Science Applications
  • Modelling and Simulation

Cite this

A joint uplink/downlink connection admission control in WLAN/cellular integrated systems. / Lim, Hyung Taig; Kim, Younghyun; Jang, Insun; Pack, Sangheon; Kang, Chul Hee.

In: Mathematical and Computer Modelling, Vol. 57, No. 11-12, 01.06.2013, p. 2788-2800.

Research output: Contribution to journalArticle

Lim, Hyung Taig ; Kim, Younghyun ; Jang, Insun ; Pack, Sangheon ; Kang, Chul Hee. / A joint uplink/downlink connection admission control in WLAN/cellular integrated systems. In: Mathematical and Computer Modelling. 2013 ; Vol. 57, No. 11-12. pp. 2788-2800.
@article{39af2cf9b4b543dabd4f0ff4d13c391e,
title = "A joint uplink/downlink connection admission control in WLAN/cellular integrated systems",
abstract = "Although different connection admission control schemes in wireless local area network (WLAN)/cellular integrated systems have been proposed in the literature, they do not exploit unique features in uplink and downlink connections. In this paper, we propose a joint uplink/downlink connection admission control scheme in WLAN/cellular integrated systems, in which thresholds for admission control are adaptively determined to maximize the network capacity depending on the uplink and downlink characteristics. We develop an analytical model for the connection blocking cost by means of multi-dimensional Markov chains and present an optimization problem for the thresholds to minimize the blocking cost. Analytical and simulation results show that the proposed connection admission control scheme can reduce the number of blocked connections compared with the WLAN-first scheme.",
keywords = "Blocking cost, Cellular/WLAN interworking, Connection admission control, Markov chain, Uplink/downlink characteristics",
author = "Lim, {Hyung Taig} and Younghyun Kim and Insun Jang and Sangheon Pack and Kang, {Chul Hee}",
year = "2013",
month = "6",
day = "1",
doi = "10.1016/j.mcm.2012.03.003",
language = "English",
volume = "57",
pages = "2788--2800",
journal = "Mathematical and Computer Modelling",
issn = "0895-7177",
publisher = "Elsevier Limited",
number = "11-12",

}

TY - JOUR

T1 - A joint uplink/downlink connection admission control in WLAN/cellular integrated systems

AU - Lim, Hyung Taig

AU - Kim, Younghyun

AU - Jang, Insun

AU - Pack, Sangheon

AU - Kang, Chul Hee

PY - 2013/6/1

Y1 - 2013/6/1

N2 - Although different connection admission control schemes in wireless local area network (WLAN)/cellular integrated systems have been proposed in the literature, they do not exploit unique features in uplink and downlink connections. In this paper, we propose a joint uplink/downlink connection admission control scheme in WLAN/cellular integrated systems, in which thresholds for admission control are adaptively determined to maximize the network capacity depending on the uplink and downlink characteristics. We develop an analytical model for the connection blocking cost by means of multi-dimensional Markov chains and present an optimization problem for the thresholds to minimize the blocking cost. Analytical and simulation results show that the proposed connection admission control scheme can reduce the number of blocked connections compared with the WLAN-first scheme.

AB - Although different connection admission control schemes in wireless local area network (WLAN)/cellular integrated systems have been proposed in the literature, they do not exploit unique features in uplink and downlink connections. In this paper, we propose a joint uplink/downlink connection admission control scheme in WLAN/cellular integrated systems, in which thresholds for admission control are adaptively determined to maximize the network capacity depending on the uplink and downlink characteristics. We develop an analytical model for the connection blocking cost by means of multi-dimensional Markov chains and present an optimization problem for the thresholds to minimize the blocking cost. Analytical and simulation results show that the proposed connection admission control scheme can reduce the number of blocked connections compared with the WLAN-first scheme.

KW - Blocking cost

KW - Cellular/WLAN interworking

KW - Connection admission control

KW - Markov chain

KW - Uplink/downlink characteristics

UR - http://www.scopus.com/inward/record.url?scp=84892501220&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84892501220&partnerID=8YFLogxK

U2 - 10.1016/j.mcm.2012.03.003

DO - 10.1016/j.mcm.2012.03.003

M3 - Article

VL - 57

SP - 2788

EP - 2800

JO - Mathematical and Computer Modelling

JF - Mathematical and Computer Modelling

SN - 0895-7177

IS - 11-12

ER -