Location Error Detection and Compensation for IEEE 802.15.4a Networks in Indoor Environments
- Authors
- Kong, Youngbae; Kim, Junseok; Kwon, Younggoo; Park, Gwitae
- Issue Date
- 8월-2010
- Publisher
- IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
- Keywords
- IEEE 802.15.4a; localization; non-line-of-sight; Kalman filter
- Citation
- IEICE TRANSACTIONS ON COMMUNICATIONS, v.E93B, no.8, pp.2077 - 2081
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEICE TRANSACTIONS ON COMMUNICATIONS
- Volume
- E93B
- Number
- 8
- Start Page
- 2077
- End Page
- 2081
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/116014
- DOI
- 10.1587/transcom.E93.B.2077
- ISSN
- 0916-8516
- Abstract
- IEEE 802.15.4a standard enables location-aided routing or topology control in ZigBee networks, since it uses time-of-arrival (TOA)-based ranging technique. However, TOA based techniques may yield location error due to the non-line-of-sight (NLOS) effects, and hence degrade the network performance. In this letter, we demonstrate the impact of NLOS on the localization performance and propose a location error detection and compensation algorithm for IEEE 802.15.4a networks. The proposed algorithm detects NLOS by using the min-max algorithm and compensates the location error by using the Kalman filter. Experimental results show that the proposed algorithm significantly reduces the localization errors in indoor environments.
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