Handoff Decision Using a Kalman Filter and Fuzzy Logic in Heterogeneous Wireless Networks

Author

Kustiawan, Iwan ; Kuang-Hui Chi

Author_Institution

Grad. Sch. of Eng. Sci. & Technol., Nat. Yunlin Univ. of Sci. & Technol., Yunlin, Taiwan

Volume

19

Issue

12

fYear

2015

Firstpage

2258

Lastpage

2261

Abstract

Handoff decision is key to service continuity when a user roams about. We propose a Kalman filtering and fuzzy logic approach to reducing handoff initiations, so as to support seamless communication. Kalman filtering is used as a channel equalization technique in channel propagation model, while a Mamdani fuzzy logic is applied subsequently for handoff decision. Several metrics such as received signal strength (RSS), data rate, velocity of mobile terminal, and traffic load are considered as criteria to initiate handoff from WLAN to the cellular network. Simulation results show that the proposed method reduces handoff initiations effectively.

Keywords

Kalman filters; cellular radio; equalisers; fuzzy logic; mobility management (mobile radio); radiowave propagation; telecommunication traffic; wireless LAN; Kalman filter; Mamdani fuzzy logic; RSS; WLAN; cellular network; channel equalization technique; channel propagation model; handoff decision; heterogeneous wireless networks; received signal strength; traffic load; Fuzzy logic; Kalman filters; Load modeling; Wireless LAN; Wireless networks; Kalman filter; Vertical handoff decision; fuzzy logic; heterogeneous wireless networks;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2015.2495212

Filename

7307982