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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Proceedings ArticleDOI
Circular Convolution Filter Bank Multicarrier (FBMC) System with Index Modulation
TL;DR: A circular convolution filter bank multicarrier with index modulation (C-FBMC-IM) system is built and it is demonstrated that both BER and spectral efficiency improvement can be achieved when the authors apply IM into the C-FB MC system.
Journal ArticleDOI
Low-Complexity Subcarrier-Wise Detection for MIMO-OFDM With Index Modulation
TL;DR: A low-complexity subcarrier-wise algorithm based on the deterministic sequential Monte Carlo technique is proposed to achieve near-optimal detection for MIMO-OFDM-IM and Computational simulations and complexity analysis show that the proposed algorithms provide similar performance to optimal one with reduced computational complexity.
Journal ArticleDOI
Enhanced Index Modulated OFDM Spread Spectrum
TL;DR: It is proved that the proposed index modulated OFDM with in-phase/quadrature spread spectrum (OFDM-IM-SS-IQ) outperforms the conventional OFDM- IM-SS scheme and obtains full diversity and achieves a better bit error rate performance than the conventional scheme.
Journal ArticleDOI
Cooperative Space Shift Keying Media-Based Modulation With Hybrid Relaying
TL;DR: It is shown that the proposed SSK-MBM systems outperform the conventional cooperative single-input multiple-output and spatial modulation systems for particularly high modulation orders and sufficient number of receive antennas at the destination.
Journal ArticleDOI
Power Allocation for Relayed OFDM with Index Modulation Assisted by Artificial Neural Network
TL;DR: The proposed power allocation scheme for relayed orthogonal frequency division multiplexing with index modulation (OFDM-IM) systems is able to provide comparable performance as the optimal solution but with lower complexity.
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)
Journal ArticleDOI
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.