An Algorithm That Predicts CSI to Allocate Bandwidth for Healthcare Monitoring in Hospital's Waiting Rooms. (22nd March 2012)

• Record Type: Journal Article
• Authors: Lin, Di; Labeau, Fabrice
• Other Names: Hu Fei Academic Editor.
• Is Part Of: International journal of telemedicine and applications. Volume 2012(2012)
• Publication Date: 2012-03-22
• Subjects: Telecommunication in medicine -- Periodicals; Medical telematics -- Periodicals; Télémédecine; Télématique médicale; Medical telematics; Telecommunication in medicine; Telemedicine -- Periodicals; Medical Informatics -- Periodicals; Biomedical Technology -- Periodicals; Electronic journals; Periodicals; 610.285
• DOI: 10.1155/2012/843527
• Languages: English
• ISSNs: 1687-6415

Abstract

Abstract : In wireless healthcare monitoring systems, bandwidth allocation is an efficient solution to the problem of scarce wireless bandwidth for the monitoring of patients. However, when the central unit cannot access the exact channel state information (CSI), the efficiency of bandwidth allocation decreases, and the system performance also decreases. In this paper, we propose an algorithm to reduce the negative effects of imperfect CSI on system performance. In this algorithm, the central unit can predict the current CSI by previous CSI when the current CSI is not available. We analyze the reliability of the proposed algorithm by deducing the standard error of estimated CSI with this algorithm. In addition, we analyze the efficiency of the proposed algorithm by discussing the system performance with this algorithm.