Subcarrier-Index Modulation Aided OFDM - Will It Work?
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TLDR
These performance investigations identify the beneficial operating region of the SIM scheme over its conventional orthogonal frequency-division multiplexing (OFDM) counterpart, hence providing general design guidelines for the SIM parameters.Abstract:
The achievable performance of subcarrier-index modulation (SIM) is analyzed in terms of its minimum Euclidean distance, constrained and unconstrained average mutual information, as well as its peak-to-average power ratio (PAPR). Our performance investigations identify the beneficial operating region of the SIM scheme over its conventional orthogonal frequency-division multiplexing (OFDM) counterpart, hence providing general design guidelines for the SIM parameters. More specifically, an SIM scheme is shown to be beneficial for the scenario of a relatively low transmission rate below 2 b/s/Hz. In addition, we demonstrate that the PAPR of the SIM scheme is comparable with that of its OFDM counterpart under the idealized simplifying assumption of having Gaussian input symbols.read more
Citations
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Journal ArticleDOI
Approximate Message Passing Detector for Index Modulation With Multiple Active Resources
Li Wei,Jianping Zheng,Qin Liu +2 more
TL;DR: For uplink generalized spatial modulation (GSM), AMP detectors in both spatially uncorrelated and correlated channels are proposed and an effective method to utilize the activation pattern constraint of GSM signal vector per user in the posterior probability computation of scalar symbol node is derived.
Journal ArticleDOI
An Optimized SLM for PAPR Reduction in Non-Coherent OFDM-IM
Sarath Gopi,Sheetal Kalyani +1 more
TL;DR: It is shown that the non-coherent OFDM-IM design, which minimizes PAPR, is a non-linear optimization problem, and a computationally efficient heuristic scheme is developed to obtain a suboptimal solution of the integer optimization problem.
Journal ArticleDOI
Coherent and non-coherent multilayer index modulation
TL;DR: A novel multilayer framework for coherent OFDM-IM is proposed, where the structure provides an improved BER performance compared to its single layer counterpart, albeit this is achieved at the cost of reduced energy efficiency.
Journal ArticleDOI
Linear Precoded Index Modulation
TL;DR: A low-complexity generalized iterative residual check detector (GIRCD) is proposed, which is inspired by the existing sparse recovery algorithms, and results are provided for demonstrating that GIRCD can provide a beneficial trade-off between bit error ratio performance and complexity.
Journal ArticleDOI
Linear Processing for Intercarrier Interference in OFDM Index Modulation Based on Capacity Maximization
Jianping Zheng,Ru Chen +1 more
TL;DR: Computer simulations show that the proposed linear processing scheme can alleviate the ICI effectively and has better performance than the conventional ICI self-cancellation scheme.
References
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Information theory, inference, and learning algorithms
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Orthogonal Frequency Division Multiplexing With Index Modulation
TL;DR: 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.
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OFDM and MC-CDMA for Broadband Multi-User Communications, WLANs and Broadcasting
TL;DR: In this article, the benefits of channel coding and space time coding in the context of various application examples and features numerous complete system design examples are discussed. But the authors do not discuss the trade-off between channel quality fluctuations and frequency domain spreading codes.