Graph Theory Assisted Bit-to-Index-Combination Gray Coding for Generalized Index Modulation

Xiao, Lixia; Chen, Da; Hemadeh, Ibrahim A.; Xiao, Pei; Jiang, Tao

doi:10.1109/twc.2020.3020692

Cited by 17 publications

(4 citation statements)

References 47 publications

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“…Furthermore, we consider the impact of channel estimation error (CSE). At the receiver, the estimated channel matrix taking into consideration the CSE is given by [39]- [41]…”

Section: Practical Channel Modelmentioning

confidence: 99%

Integrated Polarization and Spatial Modulation

Yang

Xiao

Chen

et al. 2023

IEEE Trans. Commun.

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In this contribution, the concepts of polarization modulation (PM) and spatial modulation (SM) are integrated, to reap their respective advantages toward single-radio frequency (RF) multiple-input multiple-output (MIMO) transmissions. In the so-called polarization and spatial modulation (PSM) system, the information is conveyed by activated antenna indices as well as polarization modulated symbols, while at the receiver, a low-complexity near-optimal detection algorithm based on compressive sensing (CS) is proposed. Furthermore, a closedform union bound of the average bit-error rate (BER) over fading channels is quantified by theoretical derivation, which is then extended to the case of spatial correlation (SC) as well as channel estimation error (CSE) toward practical use. Finally, our simulation results demonstrate the superiority of the developed PSM system over conventional PM in terms of BER performance over various fading channels.

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“…Furthermore, we consider the impact of channel estimation error (CSE). At the receiver, the estimated channel matrix taking into consideration the CSE is given by [39]- [41]…”

Section: Practical Channel Modelmentioning

confidence: 99%

Integrated Polarization and Spatial Modulation

Yang

Xiao

Chen

et al. 2023

IEEE Trans. Commun.

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“…In this section, the ABEP of UM-MIMO with imperfect CSI is derived based on some theoretical results of [43]. Specifically, assuming that ∆=x i − x j , B=(I Nr ⊗ ∆∆ H ),…”

Section: Abep Of Um-mimo With Imper-fect Csimentioning

confidence: 99%

Error probability analysis for ultra-massive MIMO system and near-optimal signal detection

Xiao

Liu

et al. 2023

China Commun.

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In this paper, average bit error probability (ABEP) bound of optimal maximum likelihood (ML) detector is first derived for ultra massive (UM) multiple-input-multiple-output (MIMO) system with generalized amplitude phase modulation (APM), which is confirmed by simulation results. Furthermore, a minimum residual criterion (MRC) based lowcomplexity near-optimal ML detector is proposed for UM-MIMO system. Specifically, we first obtain an initial estimated signal by a conventional detector, i.e., matched filter (MF), or minimum mean square error (MMSE) and so on. Furthermore, MRC based error correction mechanism (ECM) is proposed to correct the erroneous symbol encountered in the initial result. Simulation results are shown that the performance of the proposed MRC-ECM based detector is capable of approaching theoretical ABEP of ML, despite only imposing a slightly higher complexity than that of the initial detector.

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“…In this section, a unified bit-to-symbol mapping algorithm is designed for generalized constellation modulation based on the mapping concept [10]. Each nonzero element of P 1 of Eq.…”

Section: Proposed Bit-to-symbol Map-ping Algorithmmentioning

confidence: 99%

A unified bit-to-symbol mapping for generalized constellation modulation

et al. 2023

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Gray mapping is a well-known way to improve the performance of regular constellation modulation, but it is challenging to be applied directly for irregular alternative. To address this issue, in this paper, a unified bit-to-symbol mapping method is designed for generalized constellation modulation (i.e., regular and irregular shaping). The objective of the proposed approach is to minimize the average bit error probability by reducing the hamming distance (HD) of symbols with larger values of pairwise error probability. Simulation results show that the conventional constellation modulation(i.e., phase shift keying and quadrature amplitude modulation (QAM) with the proposed mapping rule yield the same performance as that of classical gray mapping. Moreover, the recently developed golden angle modulation (GAM) with the proposed mapping method is capable of providing around 1 dB gain over the conventional mapping counterpart and offers comparable performance to QAM with Gray mapping.

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Graph Theory Assisted Bit-to-Index-Combination Gray Coding for Generalized Index Modulation

Cited by 17 publications

References 47 publications

Integrated Polarization and Spatial Modulation

Integrated Polarization and Spatial Modulation

Error probability analysis for ultra-massive MIMO system and near-optimal signal detection

A unified bit-to-symbol mapping for generalized constellation modulation

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