Panayırcı, ErdalAcar, YusufDogan, HakanBasar, ErtugrulPanayırcı, Erdal2019-06-272019-06-27201691751-86281751-86361751-86281751-8636https://hdl.handle.net/20.500.12469/440https://doi.org/10.1049/iet-com.2016.0151A combination of space-time block coding and spatial modulation (STBC-SM) has been recently proposed for multiple input-multiple output systems to obtain both spatial diversity gain and more capacity simultaneously while assuming the perfect channel state information (P-CSI) was available at the receiver. However in practical scenarios the CSI is unknown to the receiver and should be estimated in order to detect the transmitted data in a reliable way. Therefore channel estimation (CE) is a major challenge in designing the STBC-SM systems. In this study the problem of CE is investigated and a new pilot-aided channel estimation (PA-CE) technique coupled with an interpolation is proposed for the STBC-SM systems operating in the presence of rapidly time-varying mobile channels. Several interpolation schemes such as the linear nearest neighbour piecewise cubic Hermite and the low-pass interpolations are applied and their performances are compared to determine the best suitable interpolation technique to be employed in STBC-SM systems. Bit error rate (BER) performance of the proposed CE technique is then investigated in time-varying channels with different modulation. Moreover the pairwise error probability of the STBC-SM scheme is derived and its average bit error probability is evaluated analytically in the presence of CE errors.eninfo:eu-repo/semantics/closedAccessChannel EstimationSpace-Time Block CodesDiversity ReceptionMIMO CommunicationInterpolationMobile RadioTime-Varying ChannelsError StatisticsQuadrature Phase Shift KeyingQuadrature Amplitude ModulationInterpolation-Based Pilot-Aided Channel EstimationSTBC Spatial ModulationImperfect CSISpace-Time Block CodingMultiple-Input Multiple-Output SystemsSpatial Diversity GainPerfect Channel State InformationP-CSISTBC-SM SystemsPA-CE TechniqueTime-Varying Mobile ChannelsLinear Nearest Neighbour Piecewise Cubic HermiteLow-Pass InterpolationBit Error Rate PerformanceBER PerformanceQuadrature Phase Shift KeyingQPSK16-Quadrature Amplitude Modulation16-QAM64-QAMPairwise Error ProbabilityBit Error ProbabilityArticle182018281410WOS:00038418350001710.1049/iet-com.2016.01512-s2.0-84988420332N/AQ2