Data broadcast ARQ method based on maximum-minimum network encoding
A technology of network coding and data broadcasting, applied in digital transmission system, using return channel for error prevention/detection, electrical components, etc., can solve the problems of reducing the amount of feedback information, large amount of feedback information, and low retransmission efficiency
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[0076] Such asfigure 1 As shown, this data broadcasting ARQ method based on maximum-minimum network coding is characterized in that comprising the following processing steps:
[0077] Step (1.1), the base station broadcasts the data packet:
[0078] The base station performs channel coding and modulation on the original information to form an original data packet, and then the base station broadcasts the original data packet to all users;
[0079] Step (1.2), user processing and feedback:
[0080] The user performs soft demodulation and channel decoding on the received original data packet, and judges whether the decoding is correct through the CRC check at the end of the decoded information;
[0081] If an original data packet can be correctly decoded by a user, the user stores the decoded original information and uses the feedback channel to feed back to the base station to inform the base station that the data packet has been correctly decoded; otherwise, if the user canno...
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