Low-Complexity ML Detector and Performance Analysis for OFDM With In-Phase/Quadrature Index Modulation

Subcarrier-Index Modulation Aided OFDM - Will It Work?

“…9, we considered the normalized throughput of 3.0 bits/s/Hz. Here, the 8-PSK-aided OFDM, the 8-PSK-aided SIM (8,7), the 8-PSK-aided SIM (16,13), and the 32-PSK-aided SIM (16,7) schemes were compared. The MEDs of the associated four schemes were 0.59, 0.67, 0.72, and 0.088, respectively.…”

Repeated MCIK-OFDM With Enhanced Transmit Diversity Under CSI Uncertainty

“…Then, the achievable data rate of MCIK-OFDM is investigated in [6]. To increase the SE, in [7], the IM is applied to both the inphase and quadrature components to double the number of index bits, which results in a scheme named as OFDM-IM-I/Q. A generalized MCIK-OFDM is presented in [8], where the number of active sub-carriers is no longer fixed.…”

Impact of CSI Uncertainty on MCIK-OFDM: Tight Closed-Form Symbol Error Probability Analysis

“…The authors are with the ECIT Institute, Queen's University Belfast, Belfast, BT3 9DT United Kingdom, e-mail: {tluong01, y.ko}@qub.ac.uk. error performance and diversity gain can be found in [8]- [11], while several solutions to enhance the spectral efficiency are proposed in [12]- [14]. Very recently, the extension of MCIK to multiple antenna systems is introduced with the maximum likelihood (ML) detection in [15], and its lowcomplexity detectors is proposed in [16].…”