National Taiwan Ocean University Institutional Repository:Item 987654321/28778
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题名: An 802.11n Wireless Local Area Network Transmission Scheme for Wireless Telemedicine Applications
作者: C-F Lin;S-I Hung;I-H Chiang
贡献者: NTOU:Department of Electrical Engineering
國立臺灣海洋大學:電機工程學系
关键词: wireless telemedicine applications;transmission scheme;OCPN;resource;utilization;low power
日期: 2010-10-01
上传时间: 2011-10-21T02:40:20Z
出版者: Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine
摘要: Abstract:In this paper, an 802.11n transmission scheme is proposed for wireless telemedicine applications. IEEE 802.11n standards, a power assignment strategy, space–time block coding (STBC), and an object composition Petri net (OCPN) model are adopted. With the proposed wireless system, G.729 audio bit streams, Joint Photographic Experts Group 2000 (JPEG 2000) clinical images, and Moving Picture Experts Group 4 (MPEG-4) video bit streams achieve a transmission bit error rate (BER) of 10{7, 10{4, and 10{3 simultaneously. The proposed system meets the requirements prescribed for wireless telemedicine applications. An essential feature of this proposed transmission scheme is that clinical information that requires a high quality of service (QoS) is transmitted at a high power transmission rate with significant error protection. For maximizing resource utilization and minimizing the total transmission power, STBC and adaptive modulation techniques are used in the proposed 802.11n wireless telemedicine system. Further, low power, direct mapping (DM), low-error protection scheme, and high-level modulation are adopted for messages that can tolerate a high BER. With the proposed transmission scheme, the required reliability of communication can be achieved. Our simulation results have shown that the proposed 802.11n transmission scheme can be used for developing effective wireless telemedicine systems.
關聯: 224(10), pp. 1201-1208
URI: http://ntour.ntou.edu.tw/handle/987654321/28778
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