Spatial Modulation Of MIMO Based On Antenna Beam Pattern

In recent years,mobile communications technology has entered a period of rapid development,communications systems are moving towards better speed and quality to meet the growing needs of people.Space modulation(Spatial,Modulation,SM),as a promising new modulation technology,has become the focus of research in 5G technology.The main work in this paper is as follows:(1)A new space modulation scheme is proposed in the context of spatial modulation,which uses different beam patterns generated by transmit antenna array to transmit information.This modulation scheme can improve the efficiency of information transfer and achieve stronger robustness.This kind of beam pattern modulation is different from the traditional space modulation because the information transmitted not only contains the traditional modulation symbols,but also includes the antenna transmit waveform information determined by the antenna weight.The research of this scheme will further promote the development of space modulation,which will not only limit the modulation method of single antenna selection,but also further enhance the performance of MIMO wireless communication.(2)When the receiver is located at the intersection area of different transmitter lobes,ABPM modulation in spatial modulation error rate is better than the traditional.But considering the probability of receiver is located in the cross area of several lobes is relatively low,so the application of ABPM modulation limitations.To solve this problem,based on pattern synthesis algorithm Woodword Lawson algorithm,put forward the direction cosine method M-CBPM,which overcomes the limitations of ABPM modulation,compared with the traditional spatial modulation technique,a new pattern design method in the transmitting antenna receiving antenna system is lower than the error rate in the and the higher information rate.