Abstract
In underwater collaborative network communication, the use of distributed beam forming technology can greatly improve the communication speed and reliability of the network, thus improving the performance of the system. Currently, a vector code based on the feedback information from the destination node to the relay node is used to design the vector code base of the beam, which is widely used in wireless communication. Because of the complex multi-diameter effect of the sound channel and the severity of the variability, the probability of the feedback error is very high. This can be fatal to the system of designing the beam forming technology through feedback information. This paper analyzes the method of feedback error of distributed beam forming system, and gives the approximate expression of feedback error probability and system performance. This paper presents a scheme to improve the feedback information by using the numerical search to improve the performance of feedback information. Through the simulation experiment analysis, the proposed scheme can obviously improve the data rate of the system.
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