Underwater acoustic OFDMA resource allocation method based on feedback channel state information
A technology of channel state information and state information, applied in wireless communication, electrical components, etc., can solve the problems that resource allocation algorithms do not consider the fairness between users, and do not analyze the internal correlation of channel state information in time domain and frequency domain, etc.
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[0042] The present invention provides a fair resource allocation method for underwater acoustic OFDMA nodes based on feedback channel state information time-frequency correlation coefficient and statistical mean value characteristics. Fair resource allocation to further improve system performance.
[0043] Step 1) The sending end master node of the underwater acoustic OFDMA communication system sends a channel state test signal to a plurality of receiving terminal nodes according to the default OFDM carrier modulation mode;
[0044] Step 2) The receiving terminal node of the underwater acoustic OFDMA communication system first estimates the sub-carrier channel state information according to the received test signal, then carries out carrier grouping joint polynomial data fitting preprocessing to the channel state information estimated value, and finally a plurality of sub-nodes The preprocessed limited channel state information is fed back to the master node at the sending end...
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