Peak‐to‐average power ratio reduction in space frequency block coding multi‐input multi‐output orthogonal frequency division multiplexing systems by tone reservation

Deng, Xiangquan; Jiang, Tao; Zhou, Yang; Ye, C.; Qi, Quan

doi:10.1002/dac.2582

Cited by 6 publications

(5 citation statements)

References 17 publications

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“…The PAPR problem imposes substantial challenges on the practical design of power amplifiers that have a limited linear range. Diverse techniques of PAPR reduction have been investigated not only for conventional OFDM [41], but also for ST-/SF-aided MIMO-OFDM systems [42][43][44][45][46][47].…”

Section: Maximum-likelihood (Ml) Detectionmentioning

confidence: 99%

Impact of cooperative space–time/frequency diversity in OFDM‐based wireless sensor systems over mobile multipath channels

Zhang

Gharavi

2016

IET wirel. sens. syst.

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Cooperative linear dispersion coding (LDC) can support arbitrary configurations of source nodes and destination nodes in virtual multi-input-multi-output systems. In this study, the authors investigate two spatial diversity applications of cooperative LDC for orthogonal frequency division multiplexing (OFDM)-based wireless sensor systems in order to achieve space-time/frequency (ST/SF) diversity gains when transmitting over time-/frequency-selective fading channels. Cooperative LDC-aided ST-/SF-OFDM is flexible in configuring various numbers of cooperative source nodes and timeslots or frequency-tones. Their results show that the ST-OFDM scheme is sensitive to exploiting diversity gains, subject to the impact of varying channel Doppler spreads; while the performance of SF-OFDM is mainly subject to delay spread. Specifically, when the system involves more than two cooperative nodes, the cooperative LDC-aided ST-/SF-OFDM outperforms the cooperative orthogonal block codes (e.g. Tarokh's codes) aided ST-/SF-OFDM, when communicating over a higher Doppler/delay spread.

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Section: Maximum-likelihood (Ml) Detectionmentioning

confidence: 99%

Impact of cooperative space–time/frequency diversity in OFDM‐based wireless sensor systems over mobile multipath channels

Zhang

Gharavi

2016

IET wirel. sens. syst.

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“…However, although both orthogonal frequency-division multiple access and SC-FDMA have retained the advantages of OFDM, they have also inherited its weaknesses, one of which is the problem of a high peak-to-average power ratio (PAPR). So far, several countermeasures, such as the partial transmit sequence (PTS), 1-3 selective mapping (SLM), [4][5][6] tone reservation (TR), [7][8][9][10][11][12][13][14] block codes, 15,16 and tone injection (TI), 17,18 have been implemented to improve the PAPR. Both the PTS and SLM are types of the multiple signal representation technique.…”

Section: Introductionmentioning

confidence: 99%

Improving the peak‐to‐average power ratio of the single‐carrier frequency‐division multiple access system through the integration of tone injection and tone reservation techniques

Chen

Liang

Chu

et al. 2017

Int J Communication

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SummaryThis paper proposes a new method for reducing the peak-to-average power ratio of the single-carrier frequency-division multiple access system. The method is an integration of the tone injection (TI) and tone reservation (TR) techniques.A recommended method that uses TI to improve TR's low data transmission rate problem that is caused by the reservation of subcarriers. Additionally, to reduce the massive amount of computation required by the combined needs of TI and TR, an iterative flipping algorithm was adopted for this purpose. Simulation results indicate that the proposed method is not only capable of effectively improving the peak-to-average power ratio-reduction efficiency of the single-carrier frequency-division multiple access system but it can also improve the data transmission rate of the conventional TR technique.

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“…Among the MIMO techniques used in MIMO MB‐OFDM UWB systems, Linear Dispersion Space‐Time Block Codes (LD‐STBCs), proposed in , play important roles because they can achieve full spatial diversity. These codes have been extensively investigated in the literature . In this paper, we introduce the LD‐STBC MB‐OFDM UWB system.…”

Section: Introductionmentioning

confidence: 99%

Widely linear channel estimation for LD‐STBC MB‐OFDM UWB systems

Hajjaj

Chainbi

Bouallègue

2016

Int J Communication

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Summary The combination of Linear Dispersion Space‐Time Block Codes (LD‐STBCs) and Multiband Orthogonal Frequency Division Multiplexing Ultra‐WideBand (MB‐OFDM UWB) technologies has been proposed in the literature to improve the error performance and data rate. Recently, it has been shown that the LD codes allow the repetitions of data symbols conjugates. They cause a transformation of the Multiple‐Input Multiple‐Output (MIMO) channel that requires a Widely Linear (WL) filtering. However, proposed LD‐STBC MB‐OFDM UWB system does not take this issue into account. In this paper, we propose a Widely Linear Minimum Mean Square Error (WLMMSE) channel estimator for LD‐STBC MB‐OFDM UWB systems. The proposed channel estimator proceeds to WL estimation instead of linear one. Via simulation results, we prove that the LD‐STBCs provide significant performance gain for MB‐OFDM UWB system compared to Single‐Input Single‐Output (SISO) configuration. We show also that the proposed WLMMSE channel estimator outperforms the LMMSE one. This performance improvement is observed for both proper and improper signal constellations. Additionally, the computational complexity of our proposal is comparable with that of LMMSE estimator. Copyright © 2016 John Wiley & Sons, Ltd.

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Peak‐to‐average power ratio reduction in space frequency block coding multi‐input multi‐output orthogonal frequency division multiplexing systems by tone reservation

Cited by 6 publications

References 17 publications

Impact of cooperative space–time/frequency diversity in OFDM‐based wireless sensor systems over mobile multipath channels

Impact of cooperative space–time/frequency diversity in OFDM‐based wireless sensor systems over mobile multipath channels

Improving the peak‐to‐average power ratio of the single‐carrier frequency‐division multiple access system through the integration of tone injection and tone reservation techniques

Widely linear channel estimation for LD‐STBC MB‐OFDM UWB systems

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