Signal transmission method and device
A signal transmission and signal technology, applied in the field of signal transmission, can solve the problem of low utilization rate of channel resources and achieve the effect of improving utilization rate
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Embodiment 1
[0028] like figure 1 As shown, the present application provides an embodiment of a signal transmission method, which is used to improve the utilization rate of channel resources of a relay node. In this embodiment of the present application, multi-signal transmission based on one channel can be realized by sending a superimposed signal based on the first signal to be forwarded and the second signal generated by itself to the destination node, thereby improving the utilization rate of channel resources of the relay node . The method specifically includes the following steps:
[0029] In step 101: the relay node acquires a first signal to be forwarded and a second signal generated by itself, and performs superposition processing on the first signal and the second signal according to a preset superposition rule to obtain a first superimposed signal.
[0030] See figure 2 , is a schematic diagram of an optical relay system shown. figure 2 In , the source node and the relay n...
Embodiment 2
[0075] like image 3 As shown, the present application provides another embodiment of a signal transmission method, which is used to improve the utilization rate of channel resources of the relay node. The embodiments of the present application can realize multi-signal transmission with a lower bit error rate on the basis of improving the utilization rate of channel resources of the relay node by determining the power coefficient of multi-signal transmission based on the same channel. The method specifically includes the following steps:
[0076] In step S301: the relay node acquires the first signal to be forwarded and the second signal generated by itself, and performs superposition processing on the first signal and the second signal according to a preset superposition rule to obtain a first superimposed signal.
[0077] In step S302: the relay node sends the first superposition signal to the destination node through the first channel.
[0078] In step S303: the destinati...
example 3
[0105] The above is the signal transmission method provided by the embodiment of the present application. Based on the same idea, the embodiment of the present application also provides a signal transmission device, such as Figure 4 Shown:
[0106] The signal transmission device includes a superposition module 410 and a sending module 420 applied to the relay node, and a receiving module 430 and a demodulation module 440 applied to the destination node, wherein:
[0107] The superposition module 410 is configured to obtain the first signal to be forwarded and the second signal generated by itself, and perform superposition processing on the first signal and the second signal according to a preset superposition rule to obtain a first superimposed signal ;
[0108] The sending module 420, configured to send the first superimposed signal to the destination node through the first channel;
[0109] The receiving module 430 is configured to receive a second superimposed signal de...
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