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 | |
Publication status | Published - 2007 Nov |
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