Title :
Channel-Aware Tracking in Multi-Hop Wireless Sensor Networks with Quantized Measurements
Author :
Xiaojun Yang ; Ruixin Niu ; Masazade, Engin ; Varshney, Pramod K.
Author_Institution :
Sch. of Inf. Eng., Chang´an Univ., Xi´an, China
Abstract :
A channel-aware target tracking approach is proposed for multi-hop sensor networks based on M-bit quantized measurements. For two cases where the fusion center has the knowledge of the instantaneous fading channel gains and where only the knowledge of fading channel statistics is available, particle filtering (PF)-based channel-aware tracking algorithms are developed. Furthermore, the posterior Cramer-Rao lower bounds (PCRLBs) for the tracking filters are derived. The improved tracking accuracy and robustness of the proposed approach are demonstrated through simulations.
Keywords :
fading channels; particle filtering (numerical methods); quantisation (signal); radiotelemetry; sensor fusion; statistics; target tracking; tracking filters; wireless channels; wireless sensor networks; M-bit quantized measurement; PCRLB; PF; channel-aware target tracking approach; fusion center; instantaneous fading channel statistics; multihop wireless sensor network; particle filtering; posterior Cramer-Rao lower bound; tracking filter; Fading; Noise; Relays; Spread spectrum communication; Target tracking; Wireless communication; Wireless sensor networks;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
DOI :
10.1109/TAES.2013.6621821