Intelligent cooperative retransmission method, device and system thereof in wireless ad hoc network
A wireless self-organization and retransmission technology, applied in transmission systems, digital transmission systems, error prevention, etc., can solve the problems of increased node power consumption, no consideration of RF channel consistency, difficult coherent combining at the receiving end, etc. delay, improve the probability of correct reception, and improve the effect of reliability
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[0058] The technical content of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0059] Aiming at the data packet retransmission requirement in the wireless ad hoc network, the present invention firstly provides an intelligent cooperative retransmission method. In this method, the destination node analyzes the cause of the error when the data packet is received incorrectly, and provides an intelligent retransmission protocol. The protocol designs a new NACK-Retransmission retransmission mode trigger frame, which has a field "retransmission mode" (indicated by one bit: 0: source node retransmission, 1: multiple nodes coordinate retransmission). In this way, when the sending node or the adjacent node receives the NACK-Retransmission retransmission mode trigger frame, it can automatically select the correct transmission method.
[0060] Moreover, for the "multi-node cooperative retransmission" mode,...
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