Research On Internet Of Things Technology Based On Multiple Antennas

Internet of Things technology is the third wave of the development of information technology industry today.A new generation of technology represented by big data,cloud computing,artificial intelligence and Internet of Things has set off a new round of technological revolution in the world.The current Internet of Things node data communication adopts the traditional single antenna method,and the increasingly mature wireless communication technology is applied to the Internet of Things system.By configuring multiple antennas,the signal-to-noise ratio of the receiving end can be improved,and the data transmission can be improved by multiplexing technology.This is a very far-sighted study of speed,expanding transmission bandwidth,promoting the development of the Internet of Things,and improving the overall performance of the Internet of Things system.This thesis begins with the development of mobile communication,introduces the multi-antenna technology widely used in 4G and 5G,and brings about the improvement of communication performance for communication systems by discussing the configuration of various multi-antennas.By introducing OFDM technology,it is explored that after using OFDM technology,the spectrum efficiency is improved,the communication rate is improved,and mutual interference between symbols in multi-carrier transmission is also avoided.After the previous technical interpretation,the experimental design of the multi-antenna IoT system was started.Firstly,the communication performance of the system in the ideal environment was tested by machine simulation,and then the real system was put into the real environment.The channel realizes the communication of the multi-antenna system.By adjusting the experimental parameters and observing the configuration of the number of antennas,the performance of the communication system is improved,including the channel capacity,the bit error rate and the accuracy of the modulation and demodulation.This thesis will focus on the multi-antenna technology of IoT,from the aspects of basic hardware construction and algorithm design,engineering implementation,etc.,to explore the application of multi-antenna technology in wireless communication,such as MIMO and OFDM technology in the Internet of Things system,to verify the experimental design in the early stage.The experimental scheme is modified to improve the communication performance between the communication nodes.The innovation of this thesis is mainly reflected in the application of multi-antenna wireless signaling IoT in practical engineering.The problems exposed in the experiment help to modify the experimental design.Through this project,the design of multi-antenna IoT communication system was completed,and the software and hardware integration development of the IoT communication node design was completed.The existing equipment and instruments of the laboratory were used to construct the IoT communication system.Conduct verification and evaluation.The experimental results of this project can provide a kind of support for the development of IoT technology in the future and prove the feasibility of the program.At the dawn of the 5G wave,the popularity of IoT technology will be unprecedentedly developed.The mature technology in the field of wireless communication will be applied to the Internet of Things,and the shortcomings of the Internet of Things technology will be solved in specific scenarios.Good completion of scientific and technological achievements transformation and cutting-edge technology research and verification.