Cross-layer design-based method for determining wireless network coding participation packet
A technology of wireless network and cross-layer design, which is applied in the field of determining wireless network coding participation grouping based on cross-layer design, and can solve problems such as lack of applicability and scalability, and consumption of wireless network bandwidth.
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[0081] The invention is applicable to the field of wireless networks using network coding technology and having a global unified clock, especially in the case of using exclusive-or operation in network coding. The method includes the following three steps:
[0082] (1) Cross-layer acquisition and storage of packet sending and receiving time
[0083] Wireless network nodes rely on globally unified time information (which can be obtained through GPS systems, etc.), and record the sending and receiving time value of each packet in the network coding process at the network layer where the wireless node is located through cross-layer information sharing; the specific steps are:
[0084] a. When the network layer of the wireless node participating in network coding sends a packet, it records the time value when the last bit of the frame corresponding to the packet just finished sending, and uses this value as the sending time value of the packet; when receiving the packet , the phy...
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