Sum Rate Analysis of Generalized Space Shift Keying-Aided MIMO-NOMA Systems

Rajaleksmi Kishore, Sanjeev Gurugopinath, Sami Muhaidat, Faissal El Bouanani, Octavia A. Dobre

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


We investigate the sum rate performance of a generalized space shift keying (GSSK)-aided, non-orthogonal multiple access (NOMA) network. In particular, we consider a multiple-input multiple-output (MIMO) NOMA downlink channel, where the base station employs GSSK modulation to transmit additional information to the NOMA users. We present a novel energy-based maximum likelihood (ML) detection strategy at the NOMA users to decode the active antenna indices. We derive a closed-form expression for the average pairwise error probability of the energy-based ML strategy to find a union bound on the bit error probability. Further, we derive the expression for the overall sum rate of the proposed GSSK-aided MIMO-NOMA system. Through numerical evaluations, we show that the proposed system outperforms the conventional MIMO-NOMA system, in terms of spectral efficiency.

Original languageBritish English
Article number9444827
Pages (from-to)7232-7236
Number of pages5
JournalIEEE Transactions on Vehicular Technology
Issue number7
StatePublished - Jul 2021


  • Generalized space shift keying (GSSK)
  • multiple-input multiple-output (MIMO)
  • non-orthogonal multiple access (NOMA)
  • pairwise error probability (PEP)
  • spectral efficiency


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