A Tight Upper Bound on Bit Error Rate of Joint OFDM and Multi-Carrier Index Keying

Ko, Youngwook

doi:10.1109/lcomm.2014.2347280

Cited by 100 publications

(61 citation statements)

References 8 publications

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“…That is, at cluster k w k decides part of sub-carriers to modulate. Unlike the conventional MCIK-OFDM [6], [9] whose subcarrier indices are assumed to be adjacent to each other, we propose the indices of sub-carriers at cluster k are separated by ↵ 4 , i.e., {↵…”

Section: System Modelmentioning

confidence: 99%

“…Denote by m D the number of information bits that can be sent by the non-zero data symbols. That is m D = Kblog 2 |S|c [9]. For example, when L = 64 and K = 6, we have m I = 26 bits and each non-zero data symbol can represent log 2 |S| bits.…”

Section: System Modelmentioning

confidence: 99%

“…s k,↵ ) the pairwise error event (PEE) that in cluster k active index ↵ is incorrectly detected as↵ for ↵,↵ 2 {1, · · · , L} and ↵ 6 =↵, given that ↵ is transmitted within cluster k. Here, let ↵ 4 = min |↵ ↵| and s k,↵ = w k x k represent s of cluster k with all zero elements except the ↵th element. Based on the PEE, the symbol error rate (P s,k ) can be imposed by incorrect index and is obtained, using the union bound, as [9] …”

Section: A Average Pep Over Non-orthogonal Sub-carriersmentioning

confidence: 99%

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Sparse multi-carrier index keying OFDM with index separation over correlated sub-carriers

Ko¹,

Choi²

2015

2015 International Conference on Information and Communication Technology Convergence (ICTC)

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Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. General rightsCopyright for the publications made accessible via the Queen's University Belfast Research Portal is retained by the author(s) and / or other copyright owners and it is a condition of accessing these publications that users recognise and abide by the legal requirements associated with these rights. Abstract-In this paper, we propose a sparse multi-carrier index keying (MCIK) method for orthogonal frequency division multiplexing (OFDM) system, which uses the indices of sparse sub-carriers to transmit the data, and improve the performance of signal detection in highly correlated sub-carriers. Although a receiver is able to exploit a power gain with precoding in OFDM, the sensitivity of the signal detection is usually high as the orthogonality is not retained in highly dispersive environments. To overcome this, we focus on developing the trade-off between the sparsity of the MCIK, correlation, and performances, analyzing the average probability of the error propagation imposed by incorrect index detection over highly correlated sub-carriers. In asymptotic cases, we are able to see how sparsity of MCIK should be designed in order to perform superior to the classical OFDM system. Based on this feature, sparse MCIK based OFDM is a better choice for low detection errors in highly correlated sub-carriers.Index Terms-Sparse multi-carrier index keying, nonorthogonal OFDM, detection error propagation.

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Section: System Modelmentioning

confidence: 99%

Section: System Modelmentioning

confidence: 99%

Section: A Average Pep Over Non-orthogonal Sub-carriersmentioning

confidence: 99%

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Sparse multi-carrier index keying OFDM with index separation over correlated sub-carriers

Ko¹,

Choi²

2015

2015 International Conference on Information and Communication Technology Convergence (ICTC)

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“…In [5], the optimal number of active subcarriers is studied to improve the spectral efficiency as well as energy efficiency. An overview of various IM techniques is presented in [6], [7] and a performance analysis is carried out when a maximum likelihood (ML) detector is employed in [8].…”

Section: Introductionmentioning

confidence: 99%

TCM for OFDM-IM

Choi

2018

IEEE Wireless Commun. Lett.

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Abstract-Orthogonal frequency division multiplexing (OFDM) with index modulation (IM) is a multicarrier transmission technique for frequency-selective fading channels. Although it is energy and spectral efficient, its performance may not be satisfactory as some active subcarriers can be suppressed by fading. In this letter, we consider trellis coded modulation (TCM) for OFDM-IM in order to improve the detection performance of active subcarriers by increasing the Hamming distance between index symbols. We devise mapping rules for TCM for two cases and it is shown that the diversity order can be improved, which results in a lower probability of index error.

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“…Maximum-likelihood (ML) detection is considered as the optimal detection method and has been extensively used in MCIK-OFDM [6]. However, for the successful development of low-cost, energy efficient MCIK-OFDM D2D wireless systems, low complexity detection schemes are required.…”

Section: Introductionmentioning

confidence: 99%

A low complexity detector with MRC diversity reception for MCIK-OFDM

Chatziantoniou

Crawford

2016

2016 IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)

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Abstract-Multi-carrier index keying (MCIK) is a recently developed transmission technique that exploits the sub-carrier indices as an additional degree of freedom for data transmission. This paper investigates the performance of a low complexity detection scheme with diversity reception for MCIK with orthogonal frequency division multiplexing (OFDM). For the performance evaluation, an exact and an approximate closed form expression for the pairwise error probability (PEP) of a greedy detector (GD) with maximal ratio combining (MRC) is derived. The presented results show that the performance of the GD is significantly improved when MRC diversity is employed. The proposed hybrid scheme is found to outperform maximum likelihood (ML) detection with a substantial reduction on the associated computational complexity.Index Terms-Maximal ratio combining (MRC), multi-carrier index keying (MCIK), orthogonal frequency division multiplexing (OFDM).

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A Tight Upper Bound on Bit Error Rate of Joint OFDM and Multi-Carrier Index Keying

Cited by 100 publications

References 8 publications

Sparse multi-carrier index keying OFDM with index separation over correlated sub-carriers

Sparse multi-carrier index keying OFDM with index separation over correlated sub-carriers

TCM for OFDM-IM

A low complexity detector with MRC diversity reception for MCIK-OFDM

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