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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/32892

Title: Direct mapping OFDM-based transmission scheme for underwater acoustic multimedia
Authors: LU Hoang-yang;C.-F. Lin;C. C. Lee;S. H. Lai;S.-H. Chang;C.-H. Tseng;T.-D. Wu;H.-S. Hung;F.-S. Lu
Contributors: NTOU:Department of Electrical Engineering
Date: 2010-04
Issue Date: 2012-06-18T07:47:51Z
Publisher: IEEE Int. Sym. on Parallel and Distri. Proc. with Appl.
Abstract: In this paper, we propose a direct mapping (DM)
orthogonal frequency division multiplexing (OFDM) based
transmission scheme for underwater acoustic multimedia (UAM).
We adopt DM multi-input multi-output (MIMO), power
assignment mechanism, OFDM, adaptive modulation, and
unequal error protection in the UAM system. The proposed
underwater acoustic multimedia system employs high power, low
speed modulation, and schemes providing significant error
protection for the transmission of sensor data messages requiring
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. Simulation
results show that the proposed scheme can not only fulfill the
quality of services (QoS) required by a UAM system, but also
achieve the mission of maximum transmission bit rates or
minimum transmission power.
Relation: pp.421-424
URI: http://ntour.ntou.edu.tw/handle/987654321/32892
Appears in Collections:[電機工程學系] 演講及研討會

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