Summary
International Symposium on Antennas and Propagation
2009
Session Number:3E3
Session:
Number:3E3-1
A Simulation Study for Position Estimation of Multiple Devices in 2D Communication System
Youiti Kado, Toshifumi Oota, Azman Osman Lim, Bing Zhang,
pp.1095-1098
Publication Date:2009/10/21
Online ISSN:2188-5079
Summary:
Targeted devices that embedded with a RFID tag can be sensed whether they are in the sensing range of a RFID reader. When a radio wave from the tag is precisely measured and the surrounding radio environment is stable enough, the position of the tag can be estimated. However, as for in the space, there are so many factors such as reflection, atmospheric absorption, attenuation, etc that severely affect the stability of radio environment. In the two-dimensional (2D) communication system [1], such aforementioned factors are limited because the radio wave spreads out evenly throughout the surface. The 2D communication system consists of a specially structured sheet that allows its surface to propagate the radio wave and of devices equipped with a coupler that puts the radio wave in the sheet and/or draws out the radio wave from the sheet. In this paper, we conduct a simulation study to validate the position estimation of multiple devices, which placed on the surface of the 2D communication sheet by using a MATLAB simulator. This paper is organized as follows. The next section explains the related works of 2D communication system. In Section 3, we introduce the system architecture and the radio propagation model that used in our simulation. We show some sampling data by using the maximum likelihood estimation and discuss the obtained simulation results of position estimation margin in the Section 4. Finally, we conclude this paper.