Subcarrier-Index Modulation Aided OFDM - Will It Work?
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:Â
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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Proceedings ArticleDOI
Effect of active sub-carriers' Number on OFDM-IM systems and numerical optimization
Lin Yang Liu,Kaina Zhang +1 more
TL;DR: In this paper , an OFDM-IM simulation system was built to analyze the bit error rate (BER) and the system signal-to-noise ratio (SNR) changes under different activated subcarrier values.
Proceedings ArticleDOI
Index Modulation Assisted DCT-OFDM with Enhanced Transceiver Design
TL;DR: The proposed EDCT-OFDM-IM scheme amalgamates the concept of Discrete Cosine Transform assisted Orthogonal Frequency Division Multiplexing and Index Modulation to exploit the design freedom provided by the double number of available subcarrier under the same bandwidth.
Posted Content
Enhanced Orthogonal Frequency-Division Multiplexing with Subcarrier Number Modulation
TL;DR: In this paper, the authors proposed an enhanced OFDM-SNM scheme, which utilizes the flexibility of placing subcarriers to harvest a coding gain in the high SNR region.
Journal ArticleDOI
A Novel Double-Sided Pulse Interval Modulation (DS-DS-PIM) Aided SIM-OFDM for 6G Light Fidelity (LiFi) Networks
TL;DR: In this paper , double-sided pulse interval modulation (DS-PIM)-based SIM OFDM technique is proposed to exploit the variable symbol size of DPIM to provide a variable sub-block size and enable dynamic assignment of subcarriers rather than the fixed size of conventional SIM-OFDM, which shows a 12.5% reduction in bandwidth usage for a 2-bit index word.
Journal ArticleDOI
Comparative Performance Evaluation of LDPC Coded OFDM-IM Under Jamming Attack
TL;DR: In this article , the error performance of uncoded OFDM-IM and OFDM under barrage jamming and partial band jamming attacks was examined and an upper bound for the average bit error probability under an arbitrary jamming attack was derived.
References
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Information Theory, Inference and Learning Algorithms
TL;DR: A fun and exciting textbook on the mathematics underpinning the most dynamic areas of modern science and engineering.
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Information theory, inference, and learning algorithms
TL;DR: In this paper, the mathematics underpinning the most dynamic areas of modern science and engineering are discussed and discussed in a fun and exciting textbook on the mathematics underlying the most important areas of science and technology.
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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.