Adaptive coding/modulation for shallow-water UWA communications

S. Mani, T. M. Duman, P. Hursky

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations


We consider adaptive modulation and coding (AMC) techniques for Phase Shift Keying (PSK) transmission schemes in underwater acoustic (UWA) channels. To select a particular modulation and coding scheme at the transmitter, we examine the use of two channel quality indicators (CQIs) as adaptation metrics: achievable information rate with i.i.d. Gaussian inputs and post-equalization SNR. We explore the use of these adaptation metrics through simulation and using data recorded during the recent AUVfest 2007 experiment. To evaluate AMC techniques for UWA communications, we have transmitted signals having a broad range of bit rates, obtained by varying the number of transmit elements, the modulation scheme, and the code rate. We present results demonstrating the feasibility of using our two channel quality indicators as adaptation metrics for choosing the modulation and coding scheme that achieves the highest rate supported by the available channel.

Original languageEnglish (US)
Title of host publicationProceedings - European Conference on Noise Control
Number of pages6
StatePublished - 2008
Event7th European Conference on Noise Control 2008, EURONOISE 2008 - Paris, France
Duration: Jun 29 2008Jul 4 2008


Other7th European Conference on Noise Control 2008, EURONOISE 2008

ASJC Scopus subject areas

  • Acoustics and Ultrasonics
  • Public Health, Environmental and Occupational Health
  • Building and Construction
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Automotive Engineering
  • Aerospace Engineering


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