On the Achievable Rate of OFDM With Index Modulation

Wen, Miaowen; Cheng, Xiang; Ma, Meng; Jiao, Bingli; Poor, H. Vincent

doi:10.1109/tsp.2015.2500880

Cited by 252 publications

(128 citation statements)

References 31 publications

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“…In [5], a tight upper bound on the bit error rate (BER) is derived. Then, the achievable data rate of MCIK-OFDM is investigated in [6]. To increase the SE, in [7], the IM is applied to both the inphase and quadrature components to double the number of index bits, which results in a scheme named as OFDM-IM-I/Q.…”

Section: Introductionmentioning

confidence: 99%

Repeated MCIK-OFDM With Enhanced Transmit Diversity Under CSI Uncertainty

Luong

Choi

2018

IEEE Trans. Wireless Commun.

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Section: Introductionmentioning

confidence: 99%

Repeated MCIK-OFDM With Enhanced Transmit Diversity Under CSI Uncertainty

Luong

Choi

2018

IEEE Trans. Wireless Commun.

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“…As a further benefit, Property 1 subsumes Condition 1 of [41], which facilitates single-RF transmission. Without diverting the focus of this paper, interested readers may refer to [49]- [51] for more details in this area.…”

Section: Time Index N=5000mentioning

confidence: 99%

Single-RF Index Shift Keying Aided Differential Space–Time Block Coding

Rajashekar

Ishikawa

et al. 2018

IEEE Trans. Signal Process.

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Abstract-We propose a new single-RF Differential Space-Time Block Coding using Index Shift Keying (DSTBC-ISK), which is the first in the family of Differential Space-Time Modulation (DSTM) schemes that can simultaneously achieve the following three imperative objectives of (1) forming a finite-cardinality transmit-signals set under the matrix multiplications of differential encoding; (2) retaining a single-stream ML detection complexity that does not grow with the constellation size; (3) offering a beneficial transmit diversity gain over the recently developed Differential Spatial Modulation (DSM). In order to make a fair comparison, we also conceive a low-complexity single-stream detector for DSM, which does not impose any performance loss in comparison to the existing solutions in open literature. Furthermore, in order to improve the performance of finitecardinality DSTM schemes at higher throughputs, we propose to generalize both Differential Amplitude Shift Keying (DASK) and Amplitude Shift Keying (ASK), which form the generic multilevel-ring star QAM constellation that subsumes the existing two/four-level-ring DASK solutions as special cases. Although the DASK approach has been popularly used in DSTM schemes, we demonstrate that our generalized ASK technique achieves a higher capacity and a better performance in channel coding assisted systems. Moreover, since the employment of star QAM constellations imposes the ring-amplitude dependent signal power problem for detection, we further develop bespoke MaximumLikelihood (ML), Minimum Mean Squared Error (MMSE) and Least Square (LS) detectors for DSTM using DASK/ASK, which exhibit different performance versus complexity tradeoffs. Our simulation results demonstrate that the proposed DSTBC-ISK is capable of achieving substantial diversity gains over DSM without eroding its low transceiver complexity.

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“…Achievable rate of OFDM-IM with QAM input and other finite constellation inputs can be found in [2,[11][12][13]. However, closedform expression for achievable rate of single-cell OFDM-IM with Gaussian input is missing in the literature.…”

Section: Single-cell Ofdm-immentioning

confidence: 99%

“…Achievable rates of OFDM-IM with different settings were reported in [11][12][13]. OFDM-IM with finite constellation input was discussed in [11], where a closed-form lower bound of the achievable rate was derived.…”

Section: Introductionmentioning

confidence: 99%

Single‐cell and multi‐cell performance analysis of OFDM index modulation

Nekovee

2017

IET Communications

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This study addresses the achievable rate of single cell and sum rate of multi-cell orthogonal frequency division multiplexing (OFDM) index modulation (IM). The single-cell achievable rate of OFDM-IM with Gaussian input is calculated using a multi-ary symmetric channel. Then, the cumulative distribution function of multi-cell OFDM-IM is investigated by stochastic geometry. Furthermore, it is proved in this study that the probability density function of noise plus inter-cell interference in multicell OFDM-IM with quadrature-amplitude modulation follows a mixture of Gaussians (MoGs) distribution. Next, parameters of the MoG distribution are estimated using a simplified expectation maximisation algorithm. Upper bound of sum rates of multi-cell OFDM-IM is derived. Furthermore, analytic and simulated results are compared and discussed.

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On the Achievable Rate of OFDM With Index Modulation

Cited by 252 publications

References 31 publications

Repeated MCIK-OFDM With Enhanced Transmit Diversity Under CSI Uncertainty

Repeated MCIK-OFDM With Enhanced Transmit Diversity Under CSI Uncertainty

Single-RF Index Shift Keying Aided Differential Space–Time Block Coding

Single‐cell and multi‐cell performance analysis of OFDM index modulation

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