Movement-aware vertical handoff of WLAN and mobile WiMAX for seamless ubiquitous access

Wonjun Lee; Eunkyo Kim; Joongheon Kim; Inkyu Lee; Choonhwa Lee

doi:10.1109/TCE.2007.4429211

Movement-aware vertical handoff of WLAN and mobile WiMAX for seamless ubiquitous access

Wonjun Lee^*
, Eunkyo Kim
, Joongheon Kim
, Inkyu Lee
, Choonhwa Lee

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

66 Citations (Scopus)

Abstract

This paper addresses a movement-aware vertical (MAV) handover algorithm between WLAN and Mobile WiMAX for seamless ubiquitous access. An MAV handover algorithm is proposed in this paper to exploit movement pattern for avoiding unnecessary handovers in the integrated WLAN and Mobile WiMAX networks. If a mobile station (MS)'s velocity is high and its movement pattern is irregular, unnecessary handovers likely occur more frequently. Therefore, the MS velocity and moving pattern are important factors for the handover decision procedure. To avoid unnecessary handovers, the MAV handover algorithm adjusts the dwell time adaptively and predicts the residual time in the cell of target base station (BS). Consequently, the adaptive dwell timer of MAV handover algorithm allows an MS a better connection as long as possible. Our simulation results show that the reduction of unnecessary handovers by leads to significant throughput improvements.

Original language	English
Pages (from-to)	1268-1275
Number of pages	8
Journal	IEEE Transactions on Consumer Electronics
Volume	53
Issue number	4
DOIs	https://doi.org/10.1109/TCE.2007.4429211
Publication status	Published - 2007 Nov

Bibliographical note

Funding Information:
1This work was supported by ITRC Project supervised by ITTA-2005 (C1090-0501-0019) and KOSEF grant funded by the Korea government (MOST) (No. R01-2007-000-11203-0). Corresponding author: Wonjun Lee (e-mail: [email protected]) W. Lee is with the Division of Computer and Communication Engineering, Korea University, Seoul, Korea. E. Kim is with the LG Electronics Institute of Technology, LG Electronics, Seoul, Korea. J. Kim is with the Digital Media Research Lab., LG Electronics, Seoul, Korea. I. Lee is with the School of Electrical Engineering, Korea University, Seoul, Korea. C. Lee is with the College of Information and Communications, Hanyang University, Seoul, Korea. Contributed Paper Manuscript received August 4, 2007 0098 3063/07/$20.00 © 2007 IEEE

Keywords

IEEE 802.11 WLAN
IEEE 802.16e mobile WiMAX
Movement-awareness
Ubiquitous computing
Vertical handover

ASJC Scopus subject areas

Media Technology
Electrical and Electronic Engineering

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10.1109/TCE.2007.4429211

Cite this

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title = "Movement-aware vertical handoff of WLAN and mobile WiMAX for seamless ubiquitous access",

abstract = "This paper addresses a movement-aware vertical (MAV) handover algorithm between WLAN and Mobile WiMAX for seamless ubiquitous access. An MAV handover algorithm is proposed in this paper to exploit movement pattern for avoiding unnecessary handovers in the integrated WLAN and Mobile WiMAX networks. If a mobile station (MS)'s velocity is high and its movement pattern is irregular, unnecessary handovers likely occur more frequently. Therefore, the MS velocity and moving pattern are important factors for the handover decision procedure. To avoid unnecessary handovers, the MAV handover algorithm adjusts the dwell time adaptively and predicts the residual time in the cell of target base station (BS). Consequently, the adaptive dwell timer of MAV handover algorithm allows an MS a better connection as long as possible. Our simulation results show that the reduction of unnecessary handovers by leads to significant throughput improvements.",

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author = "Wonjun Lee and Eunkyo Kim and Joongheon Kim and Inkyu Lee and Choonhwa Lee",

note = "Funding Information: 1This work was supported by ITRC Project supervised by ITTA-2005 (C1090-0501-0019) and KOSEF grant funded by the Korea government (MOST) (No. R01-2007-000-11203-0). Corresponding author: Wonjun Lee (e-mail: [email protected]) W. Lee is with the Division of Computer and Communication Engineering, Korea University, Seoul, Korea. E. Kim is with the LG Electronics Institute of Technology, LG Electronics, Seoul, Korea. J. Kim is with the Digital Media Research Lab., LG Electronics, Seoul, Korea. I. Lee is with the School of Electrical Engineering, Korea University, Seoul, Korea. C. Lee is with the College of Information and Communications, Hanyang University, Seoul, Korea. Contributed Paper Manuscript received August 4, 2007 0098 3063/07/\$20.00 {\textcopyright} 2007 IEEE",

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Movement-aware vertical handoff of WLAN and mobile WiMAX for seamless ubiquitous access

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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