Effect Of M2M MIMO Channels On LTE Physical Layer Link Performance

Mobile-to-Mobile(M2M)communication has been paid close attentions in recent years because of its important role in mobile ad hoc networks and intelligent transportation systems.Multiple-input multiple-output(MIMO)technology can improves the data rate or the link quality.The physical layer situate at the bottom of the Long Term Evolution(LTE)spatial interface hierarchical protocol.It.is the basis of the wireless communication system.Therefore,it is necessary to study the effect of M2M MIMO channel on the performance of LTE physical layer link.In this thesis,the performance of LTE physical layer link based on two dimensional(2D)two-ring and the three dimensional(3D)two-cylinder channel models are investigated under the line-of-sight(LOS)and non-line-of-sight(NLOS)conditions.Simultaneously,the performance of wideband communication systems used fixed-to-mobile(F2M)models are also studied under the same conditions.The main research contents and innovative work in this paper are as follows:Firstly,The geometry-based stochastic scattering models i.e.,the 2D two-ring and the 3D two-cylinder channel models for wideband M2M MIMO channel are analyzed,and the LTE physical layer bit error rate simulation is implemented.Secondly,based on the 2D two-ring and 3D two-cylinder scattering channel models,performance and channel capacity are analyzed for wideband M2M MIMO communication with respect to the moving speed of the transceiver,the antenna element spacing of the transceiver antennas and encoding mode.Thirdly,by introducing the M2M and F2M channel models,the influence of the distance between the transceivers and modulation system on the performance of LTE physical layer link are investigated.Also,the channel capacities of the MIMO channel using the M2M and F2M channel models are investigated with different distances between the transceivers.Fourthly,performance and channel capacity of wideband MIMO M2M communication systems which using the M2M,F2M,Rayleigh and the Rice fading channel models are compared.Simulation results verify the rationality of the geometry-based stochastic scattering models.