Title :
Ultra-wideband Cognitive Interrogator Network for indoor location tracking - part I: System architecture and network performance analysis
Author :
Chen, Yifan ; Rapajic, Ipredrag
Author_Institution :
Sch. of Eng., Univ. of Greenwich, London
Abstract :
We explore the potential application of cognitive interrogator network (CIN) in remote monitoring of mobile subjects in domestic environments, where the ultra-wideband radio frequency identification (UWB-RFID) technique is considered for accurate source localization. We first present the CIN architecture in which the central base station (BS) continuously and intelligently customizes the illumination modes of the distributed transceivers in response to the systempsilas changing knowledge of the channel conditions and subject movements. Subsequently, the analytical results of the locating probability and time-of-arrival (TOA) estimation uncertainty for a large-scale CIN with randomly distributed interrogators are derived based upon the implemented cognitive intelligences. Finally, numerical examples are used to demonstrate the key effects of the proposed cognitions on the system performance.
Keywords :
cognitive radio; radar tracking; time-of-arrival estimation; transceivers; ultra wideband communication; central base station; distributed transceivers; indoor location tracking; network performance analysis; probability location; remote monitoring; source localization; system architecture; system changing knowledge; time-of-arrival estimation uncertainty; ultra-wideband cognitive interrogator network; ultra-wideband radio frequency identification technique; Base stations; Cognition; Large-scale systems; Lighting; Performance analysis; Radiofrequency identification; Remote monitoring; Transceivers; Ultra wideband technology; Uncertainty;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2008. PIMRC 2008. IEEE 19th International Symposium on
Conference_Location :
Cannes
Print_ISBN :
978-1-4244-2643-0
Electronic_ISBN :
978-1-4244-2644-7
DOI :
10.1109/PIMRC.2008.4699464