Diversity-Achieving Quadrature Spatial Modulation

Wang, Lei; Chen, Zhigang; Gong, Zizheng; Wu, Ming

doi:10.1109/tvt.2017.2731989

Cited by 21 publications

(15 citation statements)

References 23 publications

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“…Specifically, Fig. 1 compares the performance of the proposed STBC-QSM system to that of the DA-QSM system [14] and of the ESM-ATA system [13] having N t = 4, N r = 4 at 4 bits/s/Hz and N t = 8, N r = 8 at 6 bits/s/Hz. ML detectors are employed in these systems.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…Recently, the QSM design efforts have been mainly focused on the performance analysis [6]- [7], on its coherent vs non-coherent detection [8]- [9], as well as on its extension to multi-carrier transmission [10]. In order to exploit the diversity gain of the QSM and SM system, the diversity oriented QSM and SM designs were investigated in [11]- [14]. Specifically, in [13], an Enhanced SM relying on an Arbitrary Transmit Antenna (ESM-ATA) configuration and single or twin RF stages was proposed.…”

Section: Introductionmentioning

confidence: 99%

“…However, this scheme achieves its diversity gain at the expense of a reduced transmit rate. In order to achieve a beneficial diversity gain at a high transmit rate, a Diversity-Achieving QSM (DA-QSM) scheme was proposed in [14] by amalgamating the QSM concept with the dispersion matrices. However, since the QSM scheme is a recently developed MIMO arrangement, how to exploit the diversity gain by involving the classic STBC structure has not been investigated.…”

Section: Introductionmentioning

confidence: 99%

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Bayesian Compressive Sensing Assisted Space–Time Block Coded Quadrature Spatial Modulation

Xiao

et al. 2018

IEEE Trans. Veh. Technol.

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A novel Multiple-Input and Multiple-Output (MIMO) transmission scheme termed as Space-Time Block Coded Quadrature Spatial Modulation (STBC-QSM) is proposed. It amalgamates the concept of Quadrature Spatial Modulation (QSM) and Space-Time Block Coding (STBC) to exploit the diversity benefits of STBC relying on sparse Radio Frequency (RF) chains. In the proposed STBC-QSM scheme, the conventional constellation points of the STBC structure are replaced by the QSM symbols, hence the information bits are conveyed both by the antenna indices as well as by conventional STBC blocks. Furthermore, an efficient Bayesian Compressive Sensing (BCS) algorithm is developed for our proposed STBC-QSM system. Both our analytical and simulation results demonstrated that the proposed scheme is capable of providing considerable performance gains over the existing schemes. Moreover, the proposed BCS detector is capable of approaching the Maximum Likelihood (ML) detector's performance despite only imposing a complexity near similar to that of the Minimum Mean Square Error (MMSE) detector in the high Signal to Noise Ratio (SNR) regions.

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Section: Simulation Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Bayesian Compressive Sensing Assisted Space–Time Block Coded Quadrature Spatial Modulation

Xiao

et al. 2018

IEEE Trans. Veh. Technol.

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“…Recently, by multiplying a new SC matrix with a double space-time transmit diversity code, a high-rate SM scheme called DT-SM is proposed in [8]. Almost at the same time, inspired by the concept of quadrature SM (QSM), a diversity-achieving QSM (DA-QSM) scheme is presented in [9]. Both the DT-SM and DA-QSM schemes are proved to have better bit error rate performance than the previous schemes in [4], [5] and [7].…”

Section: Introductionmentioning

confidence: 99%

High-Rate Spatial Modulation Transmission Scheme With Block-Orthogonal Structure and Block-by-Block Sphere Decoding

Wang

2020

IEEE Access

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The work in this paper is an extension of the recently proposed stacked Alamouti based spatial modulation (SA-SM) scheme. The motivation is that by taking advantage of the existing full-diversity full-rate (FDFR) space-time code, to construct SM transmission with the properties of higher spectral efficiency, non-vanishing determinants (NVD) property, as well as fast decoding. In the proposed scheme, we still use the stacked structure to construct the signal matrix, but Alamouti code in the SA-SM scheme is replaced by the FDFR Sezginer-Sari-Biglieri (SSB) code. The combination of stacked structure with SSB code can contribute to attaining the goals of our motivation. Since the proposed SM scheme has block-orthogonal (BO) property, we call it as BO-SM. We then present a low-complexity block-by-block sphere decoding for the BO-SM scheme owing to the variables corresponding to the same block are independent. Simulation results of bit error rate (BER) performance show that the proposed BO-SM scheme outperforms some newly presented diversity-achieving SM schemes.

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“…Sensor perception acquires data knowledge from different sensors, which is the primary link of automatic detection and control. (6,7) According to different sensing functions, sensors can be classified into, for example, thermal, force, magnetic, and gas sensors. Sensor integration combines sensory data or data derived from disparate sources, (8,9) and sensor fusion fuses different pieces of sensing information into one representation.…”

Section: Introductionmentioning

confidence: 99%

Gait Planning and Sensory Feedback Control for Robotic Sensor Systems in Smart Cities

Wang¹,

Zhang²,

Wang³

et al. 2019

Sensors and Materials

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Robotic sensor systems play a vital role in the intelligent working of service robots, and service robots are important components of smart cities. Robotic sensors sense information from themselves and their environment, and fuse pieces of information for use in perception, decision, planning, and control. In this paper, we investigate the application of robotic sensor systems in 3D biped walking. By using sensory feedback control, offline gait planning and online gait modification schemes have been proposed. The gait planner plans the frontal and lateral reference trajectory of a biped robot. Moreover, the kinetic constraint, zero moment point (ZMP) stability criterion, and unilateral constraint are taken into account, simultaneously. The gait modification consists of the torso posture controller, the ZMP compensator, and the joint angle controller. It is utilized to reduce the robot joint error through posture control and ZMP compensation. Additionally, the online sensor parameter optimization based on reinforcement learning (RL) is proposed to improve the stable margin of walking. Finally, simulations are presented to illustrate the effectiveness of the proposed method.

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Diversity-Achieving Quadrature Spatial Modulation

Cited by 21 publications

References 23 publications

Bayesian Compressive Sensing Assisted Space–Time Block Coded Quadrature Spatial Modulation

Bayesian Compressive Sensing Assisted Space–Time Block Coded Quadrature Spatial Modulation

High-Rate Spatial Modulation Transmission Scheme With Block-Orthogonal Structure and Block-by-Block Sphere Decoding

Gait Planning and Sensory Feedback Control for Robotic Sensor Systems in Smart Cities

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