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
X-Transform Time-Domain Synchronous IM-OFDM-SS for Underwater Acoustic Communication
TL;DR: In this paper , the authors proposed a new scheme called X-transform time-domain synchronous index modulation (IM) OFDM to eliminate the TDS-OFDM IBI, explore the multipath diversity, and reduce the peak-to-average power ratio (PAPR).
Journal ArticleDOI
General Carrier Index Aided Dual-Mode Differential Chaos Shift Keying With Full Mapping: Design and Optimization
TL;DR: To tackle the issue of discarding the subcarrier activation pattern (SAP), an effective full mapping method is proposed for the GCI-DM-DCSK-FM system to harvest better bit error rate (BER) performance and higher data rate.
Journal ArticleDOI
Enhanced Optical-OFDM With Index and Dual-Mode Modulation for Optical Wireless Systems
TL;DR: In this article, intensity modulation and direct detection compatible enhanced optical-orthogonal frequency division multiplexing with index modulation (EO-OFDM-IM) schemes are introduced and extended granularity effectuating better SE/energy efficiency (EE) trade-off and improved bit error rate performance over classical counterparts.
Proceedings ArticleDOI
Index modulated OFDM with intercarrier interference cancellation
TL;DR: In this paper, the authors proposed a self-cancellation and two-path cancellation scheme for index modulated orthogonal frequency division multiplexing (IM-OFDM) with two mapping methods, namely symmetric mapping and mirror mapping.
Proceedings ArticleDOI
Deep Convolutional Learning-Aided Detector for Generalized Frequency Division Multiplexing with Index Modulation
TL;DR: It is demonstrated that the proposed deep convolutional neural network-based detection and demodulation scheme provides better BER performance compared to ZF detector with a reasonable complexity increase and is a promising physical layer (PHY) scheme for future wireless networks.
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.