2-User Multiple Access Spatial Modulation

Abstract : Spatial modulation (SM) is a recently proposed approach to multiple-input-multiple-output (MIMO) systems which entirely avoids inter-channel interference (ICI) and requires no synchronisation between the transmit antennas, while achieving a spatial multiplexing gain. SM allows the system designer to freely trade off the number of transmit antennas with the signal constellation. Additionally, the number of transmit antennas is independent from the number of receive antennas which is an advantage over other multiplexing MIMO schemes. Most contributions thus far, however, have only addressed SM aspects for a point-to-point communication systems, i.e. the single-user scenario. In this work we seek to characterise the behaviour of SM in the interference limited scenario. The proposed maximumlikelihood (ML) detector can successfully decode incoming data from multiple sources in an interference limited scenario and does not suffer from the near-far problem.
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Nikola Serafimovski, Sinan Sinanovic, Abdelhamid Younis, Marco Di Renzo, Harald Haas. 2-User Multiple Access Spatial Modulation. GLOBECOM 2011, Dec 2011, Houston, United States. pp.1-5. ⟨hal-00663053⟩

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