Cost-based vertical handover decision algorithm for WWAN/WLAN integrated networks

Sukyoung Lee, Kunho Hong, Laeyoung Kim, Pyungjung Song

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Next generation wireless communications are expected to rely on integrated networks consisting of multiple wireless technologies. Heterogeneous networks based on Wireless Local Area Networks (WLANs) and Wireless Wide Area Networks (WWANs) can combine their respective advantages on coverage and data rates, offering a high Quality of Service (QoS) to mobile users. In such environment, multi-interface terminals should seamlessly switch from one network to another in order to obtain improved performance or at least to maintain a continuous wireless connection. Therefore, network selection algorithm is important in providing better performance to the multi-interface terminals in the integrated networks. In this paper, we propose a cost-based vertical handover decision algorithm that triggers the Vertical Handover (VHO) based on a cost function for WWAN/WLAN integrated networks. For the cost function, we focus on developing an analytical model of the expected cost of WLAN for the mobile users that enter the double-coverage area while having a connection in the WWAN. Our simulation results show that the proposed scheme achieves better performance in terms of power consumption and throughput than typical approach where WLANs are always preferred whenever the WLAN access is available.

Original languageEnglish
Article number372185
JournalEurasip Journal on Wireless Communications and Networking
Volume2009
DOIs
Publication statusPublished - 2009 Sep 2

Fingerprint

Wide area networks
Computer networks
Wireless local area networks (WLAN)
Wireless networks
Costs
Cost functions
Heterogeneous networks
Analytical models
Quality of service
Electric power utilization
Switches
Throughput
Communication

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Computer Science Applications
  • Computer Networks and Communications

Cite this

@article{1b407ce5e94945dd90cf924a16b43f5d,
title = "Cost-based vertical handover decision algorithm for WWAN/WLAN integrated networks",
abstract = "Next generation wireless communications are expected to rely on integrated networks consisting of multiple wireless technologies. Heterogeneous networks based on Wireless Local Area Networks (WLANs) and Wireless Wide Area Networks (WWANs) can combine their respective advantages on coverage and data rates, offering a high Quality of Service (QoS) to mobile users. In such environment, multi-interface terminals should seamlessly switch from one network to another in order to obtain improved performance or at least to maintain a continuous wireless connection. Therefore, network selection algorithm is important in providing better performance to the multi-interface terminals in the integrated networks. In this paper, we propose a cost-based vertical handover decision algorithm that triggers the Vertical Handover (VHO) based on a cost function for WWAN/WLAN integrated networks. For the cost function, we focus on developing an analytical model of the expected cost of WLAN for the mobile users that enter the double-coverage area while having a connection in the WWAN. Our simulation results show that the proposed scheme achieves better performance in terms of power consumption and throughput than typical approach where WLANs are always preferred whenever the WLAN access is available.",
author = "Sukyoung Lee and Kunho Hong and Laeyoung Kim and Pyungjung Song",
year = "2009",
month = "9",
day = "2",
doi = "10.1155/2009/372185",
language = "English",
volume = "2009",
journal = "Eurasip Journal on Wireless Communications and Networking",
issn = "1687-1472",
publisher = "Springer Publishing Company",

}

Cost-based vertical handover decision algorithm for WWAN/WLAN integrated networks. / Lee, Sukyoung; Hong, Kunho; Kim, Laeyoung; Song, Pyungjung.

In: Eurasip Journal on Wireless Communications and Networking, Vol. 2009, 372185, 02.09.2009.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Cost-based vertical handover decision algorithm for WWAN/WLAN integrated networks

AU - Lee, Sukyoung

AU - Hong, Kunho

AU - Kim, Laeyoung

AU - Song, Pyungjung

PY - 2009/9/2

Y1 - 2009/9/2

N2 - Next generation wireless communications are expected to rely on integrated networks consisting of multiple wireless technologies. Heterogeneous networks based on Wireless Local Area Networks (WLANs) and Wireless Wide Area Networks (WWANs) can combine their respective advantages on coverage and data rates, offering a high Quality of Service (QoS) to mobile users. In such environment, multi-interface terminals should seamlessly switch from one network to another in order to obtain improved performance or at least to maintain a continuous wireless connection. Therefore, network selection algorithm is important in providing better performance to the multi-interface terminals in the integrated networks. In this paper, we propose a cost-based vertical handover decision algorithm that triggers the Vertical Handover (VHO) based on a cost function for WWAN/WLAN integrated networks. For the cost function, we focus on developing an analytical model of the expected cost of WLAN for the mobile users that enter the double-coverage area while having a connection in the WWAN. Our simulation results show that the proposed scheme achieves better performance in terms of power consumption and throughput than typical approach where WLANs are always preferred whenever the WLAN access is available.

AB - Next generation wireless communications are expected to rely on integrated networks consisting of multiple wireless technologies. Heterogeneous networks based on Wireless Local Area Networks (WLANs) and Wireless Wide Area Networks (WWANs) can combine their respective advantages on coverage and data rates, offering a high Quality of Service (QoS) to mobile users. In such environment, multi-interface terminals should seamlessly switch from one network to another in order to obtain improved performance or at least to maintain a continuous wireless connection. Therefore, network selection algorithm is important in providing better performance to the multi-interface terminals in the integrated networks. In this paper, we propose a cost-based vertical handover decision algorithm that triggers the Vertical Handover (VHO) based on a cost function for WWAN/WLAN integrated networks. For the cost function, we focus on developing an analytical model of the expected cost of WLAN for the mobile users that enter the double-coverage area while having a connection in the WWAN. Our simulation results show that the proposed scheme achieves better performance in terms of power consumption and throughput than typical approach where WLANs are always preferred whenever the WLAN access is available.

UR - http://www.scopus.com/inward/record.url?scp=69249219025&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=69249219025&partnerID=8YFLogxK

U2 - 10.1155/2009/372185

DO - 10.1155/2009/372185

M3 - Article

AN - SCOPUS:69249219025

VL - 2009

JO - Eurasip Journal on Wireless Communications and Networking

JF - Eurasip Journal on Wireless Communications and Networking

SN - 1687-1472

M1 - 372185

ER -