Low Complexity Detection for Quadrature Spatial Modulation Systems

Li, Jun; Jiang, Xueqin; Yan, Yier; Yu, Wenjun; Song, Sang Seob; Lee, Moon Ho

doi:10.1007/s11277-017-4057-y

Cited by 25 publications

(14 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In recent works, some low complexity algorithms have been presented for MIMO, SM, and QSM signal detection [10,13,19]. In the works presented by [14,16], optimization algorithms and trigonometric functions were required in the receiver to detect the most likely antenna combinations. After the antenna indices were detected, a reduced ML detector was utilized to identify the transmitted symbols in the MIMO-QSM system.…”

Section: Low Complexity Detection Algorithmmentioning

confidence: 99%

“…Some previous works have analyzed this problem for basic QSM transmission schemes. For example, low complexity QSM detectors that consider compressive sensing [13,14], sphere decoding [15], minimum mean squared error (MMSE) [16], equivalent maximum likelihood [17], and zero forcing precoding [18] based low complexity detectors have been recently proposed. However, to the best of our knowledge, practical implementations of hardware architectures for the detection process in MIMO-QSM systems have not been discussed.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Fast Scalable Architecture of a Near-ML Detector for a MIMO-QSM Receiver

et al. 2019

View full text Add to dashboard Cite

This paper presents a proposal for an architecture in FPGA for the implementation of a low complexity near maximum likelihood (Near-ML) detection algorithm for a multiple input-multiple output (MIMO) quadrature spatial modulation (QSM) transmission system. The proposed low complexity detection algorithm is based on a tree search and a spherical detection strategy. Our proposal was verified in the context of a MIMO receiver. The effects of the finite length arithmetic and limited precision were evaluated in terms of their impact on the receiver bit error rate (BER). We defined the minimum fixed point word size required not to impact performance adversely for n T transmit antennas and n R receive antennas. The results showed that the proposal performed very near to optimal with the advantage of a meaningful reduction in the complexity of the receiver. The performance analysis of the proposed detector of the MIMO receiver under these conditions showed a strong robustness on the numerical precision, which allowed having a receiver performance very close to that obtained with floating point arithmetic in terms of BER; therefore, we believe this architecture can be an attractive candidate for its implementation in current communications standards.

show abstract

Section: Low Complexity Detection Algorithmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fast Scalable Architecture of a Near-ML Detector for a MIMO-QSM Receiver

et al. 2019

View full text Add to dashboard Cite

show abstract

“…It is the basis of the aforementioned mmWave beamforming studies, but may not be applicable in the wideband system. It is of great importance to model the wideband mmWave channel, since the most fascination of millimeter wave in 5G communication is in its abundance spectrum and easy applying in the large-scale antenna array, which is expected to embrace the 1000× data rates increase [33][34][35].…”

Section: Wideband Mmwave Channel Modelmentioning

confidence: 99%

Rotman lens-based two-tier hybrid beamforming for wideband mmWave MIMO-OFDM system with beam squint

Liu

Zhu

2018

J Wireless Com Network

View full text Add to dashboard Cite

In this paper, we study the hybrid beamforming for the wideband mmWave multiuser MIMO-OFDM system. We characterize the frequency-dependent beam angle problem, i.e., beam squint effect. Firstly, we extend the mmWave channel model from the Saleh-Valenzuela representation with the consideration of beam squint. Secondly, a two-tier hybrid beamforming is proposed to achieve the maximum spectral efficiency in wideband mmWave multiuser MIMO-OFDM system. In the first tier, the Rotman lens array is adopted as the analog precoder to provide true-time-delay (TTD) and reduce the beam squint impairment. Moreover, the first-tier baseband precoder is designed based on block diagonalization (BD) to cancel inter-user interference. We further consider the finite spatial resolution and power leakage problem of the lens array. The second-tier hybrid precoder is proposed to collect the leak power with the phase shifter array. The optimal second-tier hybrid precoder design is formulated as the matrix factorization problem, and the two-tier hybrid precoding algorithm is based on the alternative minimization. It is found that both the beam squint and frequency-selective effect should be considered in the wideband mmWave system. Simulation results show that the proposed two-tier hybrid precoder could reduce beam squint impairment and inter-user interference, and could approximate to the optimal full-digital precoder with much fewer RF chains.

show abstract

“…By applying necessary mathematical derivation and substituting (8), (9), (10), and (11) into (20), we obtain…”

Section: Exact Expression On Secrecy Outagementioning

confidence: 99%

“…As one of the most promising techniques, nonorthogonal multiple access (NOMA) provides superhigh data rate over the orthogonal multiple access, and hence it has been recognized as one candidate for the next-generation wireless communication networks [9,10].…”

Section: Introductionmentioning

confidence: 99%

Impact of Antenna Selection on Physical‐Layer Security of NOMA Networks

Deng

Fan

et al. 2018

Wireless Communications and Mobile Computing

View full text Add to dashboard Cite

This paper studies the impacts of antenna selection algorithms in decode-and-forward (DF) cooperative nonorthogonal multiple access (NOMA) networks, where the secure information from the relay can be overheard by an eavesdropper in the networks. In order to ensure the secure transmission, an optimal antenna selection algorithm is proposed to choose one best relay's antenna to assist the secure transmission. We study the impact of antenna selection on the system secure communication through deriving the analytical expression of the secrecy outage probability along with the asymptotic expression in the high regime of signal-tonoise ratio (SNR) and main-to-eavesdropper ratio (MER). From the analytical and asymptotic expressions, we find that the system secure performance is highly dependent on the system parameters such as the number of antennas at the relay, SNR, and MER. In particular, the secrecy diversity order of the system is equal to the antenna number, when the interference from the second user is limited.

show abstract

Low Complexity Detection for Quadrature Spatial Modulation Systems

Cited by 25 publications

References 25 publications

Fast Scalable Architecture of a Near-ML Detector for a MIMO-QSM Receiver

Fast Scalable Architecture of a Near-ML Detector for a MIMO-QSM Receiver

Rotman lens-based two-tier hybrid beamforming for wideband mmWave MIMO-OFDM system with beam squint

Impact of Antenna Selection on Physical‐Layer Security of NOMA Networks

Contact Info

Product

Resources

About