Title :
A mobility tracking model for wireless ad hoc networks
Author :
Zaidi, Zainab R. ; Mark, Brian L.
Author_Institution :
Dept. of Electr. & Comput. Eng., George Mason Univ., Fairfax, VA, USA
Abstract :
We propose a novel scheme for tracking the mobility of users in a wireless ad hoc network. Mobile nodes track their positions using pilot signal strengths from neighboring nodes within a local coordinate system based on relative distances between nodes. Node mobility is modeled as a linear system driven by a discrete command semi-Markov process. Mobility tracking is performed using an extended Kalman filter preceded by an averaging filter. Our numerical results show that the mobility tracking scheme performs effectively and can be used to enhance routing performance in ad hoc networks.
Keywords :
Kalman filters; Markov processes; ad hoc networks; mobile radio; tracking filters; Kalman filter; RSSI measurement; discrete command process; linear system; mobile node; mobility state estimation; mobility tracking model; pilot signal strength; received signal strength indicator; relative distance; routing performance; semi-Markov process; wireless ad hoc network; Acceleration; Ad hoc networks; Clustering algorithms; Gaussian processes; Global Positioning System; Predictive models; Routing; State estimation; Target tracking; Weapons;
Conference_Titel :
Wireless Communications and Networking, 2003. WCNC 2003. 2003 IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-7700-1
DOI :
10.1109/WCNC.2003.1200658
