Successive Interference Cancellation for MIMO UW-OFDM

Sher Ali Cheema1, Jianshu Zhang2, Mario Huemer3, Martin Haardt2

  • 1TU Ilmenau
  • 2Ilmenau University of Technology
  • 3Johannes Kepler University Linz

Details

12:10 - 14:20 | Fri 17 Mar | Poster Area | P2.4

Session: Poster Session II

Abstract

Unique word - orthogonal frequency division multiplexing (UW-OFDM) is a new signaling concept which has better spectral properties and also a superior bit error ratio (BER) performance over conventional cyclic prefix (CP) based OFDM. In UW-OFDM, the CPs are replaced by deterministic sequences, the so-called unique words (UWs). So far, the performance of UW-OFDM has been well investigated for single-input single-output (SISO) systems. Recently, we expanded our investigation {of} UW-OFDM to MIMO systems and proposed two linear detection approaches. In this extended abstract, we extend this work and propose successive interference cancellation (SIC) based non-linear detection schemes for UW-OFDM with MIMO. We also compare the results with CP-OFDM. The results show that UW-OFDM with SIC not only outperforms UW-OFDM with linear detection schemes but also CP-OFDM significantly.