Performance of OFDM With Signal Space Diversity Using Subcarrier Coordinate Interleaving


ÖZYURT S., KUCUR O.

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, cilt.67, ss.10134-10138, 2018 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 67 Konu: 10
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1109/tvt.2018.2864645
  • Dergi Adı: IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
  • Sayfa Sayıları: ss.10134-10138

Özet

Coordinate interleaving (CI) is applied to an orthogonal frequency division multiplexing system to exploit signal space diversity with binary phase-shift keying modulation. Two different CI strategies are introduced taking the correlation coefficients among the subcarrier channel gains into account. Accordingly, a number of different scenarios are investigated. Assuming Rayleigh fading, an exact closed-form expression on the bit error probability is derived. It is shown that the error performance of the system can be increased to a great extent with a feedback cost of a few bits and only a negligible increase in complexity. The proposed system is also shown to enhance the communication privacy under limited feedback.