Title :
Adaptive variable threshold vertical handoff algorithm
Author :
Xie, Shengdong ; Wu, Meng
Author_Institution :
Nanjing Univ. of Posts & Telecommun., Nanjing
Abstract :
This paper proposes an adaptive variable threshold vertical handoff algorithm based on the fast Fourier transform (FFT). The received signal strength (RSS) is the dominant factor considered when handoff occurs. The algorithm makes handoff decision after analyzing the signal strength fluctuation caused by slow fading through FFT. Simulation shows that the algorithm reduces the number of handoff by 35%, and makes nodes full use of WLAN to communication compared with traditional algorithms.
Keywords :
fading; fast Fourier transforms; wireless LAN; WLAN; adaptive variable threshold vertical handoff algorithm; fast Fourier transform; handoff decision algorithm; received signal strength; slow fading; Bandwidth; Cost function; Fading; Fuzzy control; Mobile communication; Mobile radio mobility management; Neural networks; Quality of service; Signal processing algorithms; Wireless LAN; Variable Threshold; Vertical Handoff;
Conference_Titel :
Neural Networks and Signal Processing, 2008 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-2310-1
Electronic_ISBN :
978-1-4244-2311-8
DOI :
10.1109/ICNNSP.2008.4590373
