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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/28371

Title: An OFDM-based Underwater Acoustic Multimedia System
Authors: C. F. Lin;C.H. Shih;C.P. Chen;S.W. Leu;C.H. Tseng;H.S. Hung;F.S. Lu;S.H. Chang
Contributors: NTOU:Department of Electrical Engineering
國立臺灣海洋大學:電機工程學系
Keywords: underwater;acoustic;OFDM;QoS;multimedia;power assignment
Date: 2009
Issue Date: 2011-10-21T02:37:19Z
Publisher: 9th WSEAS International Conference on Multimedia Systems & Signal Processing
Abstract: Abstract:In this paper, we propose an orthogonal frequency division multiplexing (OFDM) based underwater acoustic multimedia system. An essential feature of this system is that it offers larger power and schemes providing significant error protection for the transmission sensor data information that requires higher quality of service (QoS). To realize maximum resource utilization, or minimum total transmission power, we also include an adaptive modulation strategy into the system. Thus, in the proposed underwater acoustic multimedia system,high power, low speed modulation, and scheme providing significant error protection schemes are employed for the transmission of sensor data messages that require a stringent bit-error rate (BER). In contrast, low power,high speed modulation, and less capable error protection schemes are provided for messages that can tolerate a high BER. A simulation is carried out to verify the proper functioning of the proposed system in a practical underwater acoustic multimedia scenario.
Relation: pp.25-29
URI: http://ntour.ntou.edu.tw/handle/987654321/28371
Appears in Collections:[電機工程學系] 演講及研討會

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