Local Parametric Approach of Wireless Capsule Endoscope Localization Using Randomly Scattered Path Loss Based WCL
Joint Authors
Source
Wireless Communications and Mobile Computing
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-17, 17 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-12-04
Country of Publication
Egypt
No. of Pages
17
Main Subjects
Information Technology and Computer Science
Abstract EN
We propose scattered path loss based weighted centroid localization (WCL) algorithm for wireless video capsule endoscope (VCE).
The main challenge in this approach is the random deviation in the measured received signal strength indicator (RSSI) caused by multipath propagation and shadowing effects of human body channel which in turn increases the localization error.
To address this issue, we propose local parameter dependent path loss representation in the training phase and apply adaptive least square error (LSE) method to extract the parameters.
Then, in the test phase, we estimate distance using the extracted parameters and the randomly scattered path loss.
The position of capsule is estimated using non-degree based WCL followed by a calibration process.
We propose suboptimal method of estimating the calibration coefficient and also compute the optimal value of coefficient analytically to set the benchmark.
We develop a simulation platform using MATLAB to present the results and to verify the performance.
We gradually increase the number of sensors and place them in different topologies using different dimensions.
The obtained accuracy by our proposed suboptimal method of WCL is very close to the optimal benchmark for all cases.
Our proposed approach also outperforms existing works in terms of localization accuracy.
American Psychological Association (APA)
Hany, Umma& Akter, Lutfa. 2017. Local Parametric Approach of Wireless Capsule Endoscope Localization Using Randomly Scattered Path Loss Based WCL. Wireless Communications and Mobile Computing،Vol. 2017, no. 2017, pp.1-17.
https://search.emarefa.net/detail/BIM-1206154
Modern Language Association (MLA)
Hany, Umma& Akter, Lutfa. Local Parametric Approach of Wireless Capsule Endoscope Localization Using Randomly Scattered Path Loss Based WCL. Wireless Communications and Mobile Computing No. 2017 (2017), pp.1-17.
https://search.emarefa.net/detail/BIM-1206154
American Medical Association (AMA)
Hany, Umma& Akter, Lutfa. Local Parametric Approach of Wireless Capsule Endoscope Localization Using Randomly Scattered Path Loss Based WCL. Wireless Communications and Mobile Computing. 2017. Vol. 2017, no. 2017, pp.1-17.
https://search.emarefa.net/detail/BIM-1206154
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1206154