Two-Way Full-Duplex Spatial Modulation Systems With Wireless Powered AF Relaying

Koc A., Altunbaş İ., Basar E.

IEEE WIRELESS COMMUNICATIONS LETTERS, vol.7, no.3, pp.444-447, 2018 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 7 Issue: 3
  • Publication Date: 2018
  • Doi Number: 10.1109/lwc.2017.2782816
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.444-447
  • Keywords: Energy harvesting, two-way full-duplex, spatial modulation, amplify-and-forward, power-splitting, INFORMATION, NETWORKS
  • Istanbul Technical University Affiliated: Yes


This letter proposes a dual-hop two-way full-duplex cooperative system, where spatial modulation is used at the sources and energy harvesting is employed at the wireless powered relay. We combine the physical-layer network coding and the fixed-gain amplify-and-forward relaying techniques for two-way transmission. For the simultaneous information and wireless power transfer, the power-splitting protocol is employed at the relay, which has no external power supply. A new unified tight upper-bound bit error rate (BER) expression is derived in a closed-form for both full-duplex and half-duplex transmission schemes. The accuracy of our analyses is verified by various Monte Carlo type computer simulations. The numerical results reveal that the full-duplex scheme can provide considerably better BER performance compared to the conventional half-duplex scheme as the quality of loop-interference cancellation improves and/or the spectral efficiency requirement increases.