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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Journal ArticleDOI
Generalized Carrier Index Differential Chaos Shift Keying Based SWIPT with Conversion Noise and Path Loss-Effect
TL;DR: In this paper , a generalized carrier index differential chaos shift keying with simultaneous wireless information and power transfer (GCI-DCSK SWIPT) scheme was proposed, which is an improved scheme for CI-DCS-SWIPT.
Journal ArticleDOI
Hybrid Chaos Communication With Code Index Modulation
TL;DR: The numerical results show that the proposed CIM-HCC outperforms the code index modulation differential chaos shift keying in terms of bit error rate over both the additive white Gaussian noise channel and the multipath Rayleigh fading channels.
Journal ArticleDOI
Design of Space-Frequency Index Modulation Waveforms for MIMO–OFDM Heterogeneous Networks
TL;DR: The proposed scheme combines the index modulation concept with multiple-input multiple-output (MIMO) and orthogonal frequency-division multiplexing techniques and jointly considers the resources on both spatial and frequency domains to optimize the transmission signals.
Proceedings ArticleDOI
Differential Spatial Frequency Modulation with Orthogonal Frequency Division Multiplexing
TL;DR: Simulation results show that at low spectral efficiency, the performance of the proposed two schemes are better than differential spatial modulation (DSM) with the high SNR.
Journal ArticleDOI
A New Frequency-Bin-Index LoRa System for High-Data-Rate Transmission: Design and Performance Analysis
TL;DR: In this article , a frequency-bin-index (FBI) LoRa scheme is proposed to solve the low-data-rate issue of the conventional LoRa systems, where the indices of starting frequency bins (SFBs) are utilized to carry the information bits.
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.