Underwater Acoustic Multimedia Communication Based on MIMO---OFDM

  • Authors:

  • Chin-Feng Lin;Shun-Hsyung Chang;Chia-Chang Lee;Wen-Chin Wu;Wei-Hua Chen;Kao-Hung Chang;Jenny Chih-Yu Lee;Ivan A. Parinov

  • Affiliations:

  • Department of Electrical Engineering, National Taiwan Ocean University, Keelung, Taiwan, ROC;Department of Microelectronic Engineering, National Kaohsiung Marine University, Kaohsiung, Taiwan, ROC;Department of Electrical Engineering, National Taiwan Ocean University, Keelung, Taiwan, ROC;Department of Electrical Engineering, National Taiwan Ocean University, Keelung, Taiwan, ROC;Department of Electrical Engineering, National Taiwan Ocean University, Keelung, Taiwan, ROC;Department of Electrical Engineering, National Taiwan Ocean University, Keelung, Taiwan, ROC;Department of Microelectronic Engineering, National Kaohsiung Marine University, Kaohsiung, Taiwan, ROC;Vorovich Mechanics and Applied Mathematics Research Institute, Southern Federal University, Taganrog, Russia

  • Venue:
  • Wireless Personal Communications: An International Journal
  • Year:
  • 2013

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Abstract

A transmission scheme is proposed based on multi-input multi-output orthogonal frequency-division multiplexing (OFDM) for underwater acoustic multimedia (UWAM) communication. The proposed scheme integrates direct mapping and space-time block code strategies, a power assignment mechanism, OFDM, adaptive modulation, and unequal error protection in a UWAM system. The proposed UWAM system employs high power, low speed modulation, with schemes providing significant error protection for transmission of sensor data messages requiring a stringent bit-error rate (BER). In contrast, low power, high speed modulation schemes with reduced error protection are provided for messages that can tolerate a high BER, such as image and audio signals. Simulation results show that the proposed scheme not only fulfils the quality of services requirements of a UWAM system, but also maximizes transmission bit rates or minimizes transmission power requirements.