Canbilen, Ayse E.Alsmadi, Malek M.Basar, ErtugrulIkki, Salama S.Gultekin, Seyfettin S.Develi, Ibrahim2020-03-262020-03-2620181089-77981558-2558https://dx.doi.org/10.1109/LCOMM.2018.2836448https://hdl.handle.net/20.500.12395/36953Spatial modulation (SM) is affected by the impacts of in-phase and quadrature-phase imbalance (IQI), which cause degradation of system performance in practical terms. To address this concern, an optimal maximum likelihood detector is proposed for SM-based transmission and the system performance is analyzed by computer simulations and analytical derivations. In addition, this optimal receiver is compared with a non-optimal receiver. Specifically, pairwise and average hit error probabilities are derived for the optimal detector. The results prove that IQI is a critical issue for SM-based transmission and the proposed optimal receiver significantly enhances the SM system performance in the presence of IQI.en10.1109/LCOMM.2018.2836448info:eu-repo/semantics/closedAccessError performance analysisI/Q imbalancemaximum likelihood detectionspatial modulationArticle22815721575Q1WOS:000441793900015Q2