Title :
A threshold-based MIMO TOA location estimation for cellular systems
Author :
Yabu, Tomofumi ; Hara, Shinsuke ; Zemek, Radim ; Derham, Thomas
Author_Institution :
Grad. Sch. of Eng., Osaka City Univ., Osaka, Japan
Abstract :
In a cellular system, Multiple-Input/Multiple-Output (MIMO) technique increases the number of links for not only spatially multiplexing data to transmit/receive but also measuring the distance between a base station (BS) and a mobile station (MS) at the same time. Therefore, if the MIMO technique is applied to a system-based location estimation, it must improve the accuracy of location estimate. This paper evaluates the performances of threshold-based Time of Arrival (TOA) location estimation methods in cellular systems. Computer simulation results on the location estimation error reveal that, if we employ no threshold, the selection method is a proper choice, whereas if we can optimally adjust the threshold according the Carrier-to-Noise power Ratio (CNR), the average method is a proper choice.
Keywords :
MIMO communication; cellular radio; time-of-arrival estimation; base station; carrier-to-noise power ratio; cellular systems; data multiplexing; mobile station; multiple-input/multiple-output technique; system-based location estimation; threshold-based MIMO TOA location estimation; time of arrival location estimation methods; Antennas; Computational modeling; Delta modulation; Distance measurement; Estimation; MIMO; Mobile communication; Location; MIMO; TOA; cellular system; ranging;
Conference_Titel :
Spread Spectrum Techniques and Applications (ISITA), 2010 IEEE 11th International Symposium on
Conference_Location :
Taichung
Print_ISBN :
978-1-4244-6013-7
Electronic_ISBN :
1943-7439
DOI :
10.1109/ISSSTA.2010.5653348
