Journal ArticleDOI
Orthogonal Frequency Division Multiplexing With Index Modulation
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TLDR
It is shown via computer simulations that the proposed OFDM with index modulation scheme achieves significantly better error performance than classical OFDM due to the information bits carried in the spatial domain by the indices of OFDM subcarriers.Abstract:
In this paper, a novel orthogonal frequency division multiplexing (OFDM) scheme, called OFDM with index modulation (OFDM-IM), is proposed for operation over frequency-selective and rapidly time-varying fading channels In this scheme, the information is conveyed not only by M-ary signal constellations as in classical OFDM, but also by the indices of the subcarriers, which are activated according to the incoming bit stream Different low complexity transceiver structures based on maximum likelihood detection or log-likelihood ratio calculation are proposed and a theoretical error performance analysis is provided for the new scheme operating under ideal channel conditions Then, the proposed scheme is adapted to realistic channel conditions such as imperfect channel state information and very high mobility cases by modifying the receiver structure The approximate pairwise error probability of OFDM-IM is derived under channel estimation errors For the mobility case, several interference unaware/aware detection methods are proposed for the new scheme It is shown via computer simulations that the proposed scheme achieves significantly better error performance than classical OFDM due to the information bits carried by the indices of OFDM subcarriers under both ideal and realistic channel conditionsread more
Citations
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Experimental Demonstration of Optical OFDM with Subcarrier Index Modulation for IM/DD VLC
TL;DR: In this paper, the authors demonstrate an IM/DD VLC system using optical OFDM with subcarrier index modulation (OFDM-SIM) and digital pre-equalization.
Journal ArticleDOI
Generalized 3-D Spatial Scattering Modulation
TL;DR: In this paper , the authors proposed a generalized 3D spatial scattering modulation (SSM) system, which considers both vertical and horizontal angles to determine scattering paths, which are selected to convey information bits.
Journal ArticleDOI
Transformer-Based Detector for OFDM With Index Modulation
TL;DR: Simulation results indicate that the proposed TransIM detector fares better than existing DL-based ones regarding bit error rate (BER) performance, and at the cost of slightly increased complexity.
Proceedings ArticleDOI
Analysis of Average Bit Error Rate for OFDM-IM Systems with Hardware Impairments over Nakagami-m and Weibull Fading Channels
TL;DR: In this article , the performance of OFDM-IM systems over Nakagami-m and Weibull fading channels that suffer from transceiver hardware impairments (HWIs) is investigated.
Journal ArticleDOI
Generalized BER of MCIK-OFDM with imperfect CSI: selection combining GD versus ML receivers
TL;DR: In this article , the bit error rate (BER) of MCIK-OFDM with selection combining (SC) diversity reception was analyzed for both the low-complexity greedy detector (GD) and maximum likelihood (ML) detector.
References
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Journal Article
Spatial Modulation
TL;DR: An analytical approach for symbol error ratio (SER) analysis of the SM algorithm in independent identically distributed Rayleigh channels results closely match and it is shown that SM achieves better performance in all studied channel conditions, as compared with other techniques.
Proceedings ArticleDOI
A comparison of optimal and sub-optimal MAP decoding algorithms operating in the log domain
TL;DR: A log- MAP algorithm is presented that avoids the approximations in the max-log-MAP algorithm and hence is equivalent to the true MAP, but without its major disadvantages, and it is concluded that the three algorithms increase in complexity in the order of their optimality.
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Statistical Analysis Based on a Certain Multivariate Complex Gaussian Distribution (An Introduction)
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Space shift keying modulation for MIMO channels
TL;DR: Space shift keying concepts are extended to incorporate channel coding, where in particular, they are considered a bit interleaved coded modulation (BICM) system using iterative decoding for both convolutional and turbo codes.