BibTeX:

@article{IJIRSTV3I10046,
     title={Reliable Approaches for OFDM Based UWAC},
     author={Divya R, Meera Panicker P. R, Hari S and Shahana Habeeb Muhammed},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={3},
     number={10},
     pages={128--134},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV3I10046.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}

For an underwater communication cost is not a factor for initial deployment of the system as the frequent maintenance is not practically possible. To design a reliable underwater communication system the main aims are long distance, secure and accurate. Some reliable approaches can be implemented by including different ideas such as compress and forward relay can be used to increase the data rate instead of AF relaying, as it is commonly used in previous researches, for frequency and time analyzing pilot based estimation with PN sequence can be used. In addition to this for providing high diversity MIMO system can be integrated. Zero force equalizer can be provided and adaptive filter is used for equalization, here RLS filter is used to avoid interferences. For the removal of channel error and burst error, a channel encoder and interleaver is used respectively. More important a fast converging estimation technique is used instead of MAP is MMSE. Minimum mean square error estimation is used, as it is suitable for practical deployment in underwater. Thus a reliable design for UWAC for practical implementation is proposed and its performance exhibits excellent simulation results.

UWAC, Acoustic waves, MMSE, ZFE, RLS filter, Estimation, OFDM