Patent ID: 8423857

Claim:
A method for an end-to-end hybrid automatic repeat request, adapted to a cognitive radio network (CRN) comprising at least a source node and a destination node, there being a plurality of paths between the source node and the destination node, and each one of the paths comprising a plurality of wireless links, the method for the end-to-end hybrid automatic repeat request comprising: encoding information into a coded packet and dividing the coded packet into a plurality of coded sub-packets by the source code, wherein a proportion of information included in each one of the coded sub-packets is dynamically adjusted according to a channel distribution information (CDI); dynamically adjusting a number of the paths used for forwarding the coded sub-packets according to a communication quality state, and transmitting the coded sub-packets to the paths by the source node; sequentially amplifying and forwarding a coded sub-packet to the destination node through the wireless links of each one of the paths; and combining the coded sub-packets for decoding so as to recover the information, and transmitting an acknowledgement packet to the source node through the paths by the destination node for notifying the source node whether the information is successfully recovered.