Multiple access spatial modulation

Nikola Serafimovski, Sinan Sinanovic, Marco Di Renzo, Harald Haas

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    In this study, we seek to characterise the behaviour of Spatial modulation (SM) in the multiple access scenario. By only activating a single transmit antenna for any transmission, SM entirely avoids inter-channel interference, requires no synchronisation between the transmit antennas and a single radio frequency chain at the transmitter. Most contributions thus far have only addressed aspects of SM for a point-to-point communication system. We propose a maximum-likelihood (ML) detector which can successfully decode incoming data from multiple simultaneous transmissions and does not suffer from the near-far problem. We analyse the performance of the interference-unaware and interference-aware detectors. We look at the behaviour of SM as the signal-to-interference-plus-noise ratio goes to infinity and compare it to the complexity and cost equivalent single-input-multiple-output (SIMO) system.
    Original languageEnglish
    JournalEURASIP Journal on Wireless Communications and Networking
    Publication statusPublished - 2012


    • spatial modulation
    • communication system
    • wireless networks


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