Shashikant, S.G.G.D., G.D.G.Shripathi Acharya, U.S.2026-02-042022Telecommunication Systems, 2022, 79, 3, pp. 405-41610184864https://doi.org/10.1007/s11235-021-00860-4https://idr.nitk.ac.in/handle/123456789/22642In this paper, a new MIMO scheme termed as precoded Spatially Modulated Non-orthogonal Space Time Block Code (precoded SM-NSTBC) is proposed. The primary concept of precoded SM-NSTBC is to activate a subset of receive antennas in a pre-defined manner and choose specific activated patterns to represent information symbols. We have synthesized schemes derived from full rank Cyclic codes defined over Galois field Rank preserving transformations are used to map the full rank codewords over a finite field to full rank Space Time Block Codes. Due to the characteristics of full rank Cyclic codes employed, a performance improvement of approximately 2 dB to 7 dB is observed. This advantage is realized when the performance of these schemes is compared with precoded SM-OSTBC and precoded STBC-SM. The improvement due to the coding gain is observed in both uncorrelated as well as correlated Rayleigh fading environments. An upper bound on the average bit error rate (ABER) is derived. Close correspondence between Monte-Carlo simulations and analytic values are observed. © 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.Bit error rateBlock codesCommunication channels (information theory)Fading channelsIntelligent systemsModulationMonte Carlo methodsRayleigh fadingReceiving antennasSpace time codesSpace-time block coding (STBC)Cyclic codeEisenstein integerGaussian integersInformation symbolNon-orthogonal space-time block codesPerformanceReceive antennaSpatial modulationsSpatially modulatedSpatially modulated non orthogonal space time block codeMIMO systems