A Low-Complexity Detection Scheme for Generalized Spatial Modulation Aided Single Carrier Systems

Xiao, Lixia; Liu, Dan; Zhang, Yunjiao; Yang, Ping; Li, Shaoqian

doi:10.1109/lcomm.2015.2404444

Cited by 24 publications

(6 citation statements)

References 20 publications

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“…r e m o v eb r a n c ho f ,̂←̂− 1 (15) e l s e (16) keep branch of (17) e n di f (18) endfor (19) For comparison purpose, the computational complexity of ML detector for GSM systems is denoted by ML , and it is [18] ML = |Ω| (6 + 3) .…”

Section: (10)mentioning

confidence: 99%

“…Furthermore, based on a computationally efficient concentrated ML (CECML) algorithm proposed for efficient computation of ordering metric for the OB-MMSE detector, an improved (OB-MMSE) detector for GSM was presented in [14], which can achieve substantial complexity reduction but with almost the same performance as OB-MMSE detector in [13]. In [15], a low complexity near-ML detection scheme for GSM aided single carrier systems was proposed, which provided a parameter to balance a tradeoff between complexity and performance.…”

Section: Introductionmentioning

confidence: 99%

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Improved QRD-M Detection Algorithm for Generalized Spatial Modulation Scheme

Jing

Wang

Zhou

et al. 2017

International Journal of Antennas and Propagation

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Generalized spatial modulation (GSM) is a spectral and energy efficient multiple-input multiple-output (MIMO) transmission scheme. It will lead to imperfect detection performance with relatively high computational complexity by directly applying the original QR-decomposition with M algorithm (QRD-M) to the GSM scheme. In this paper an improved QRD-M algorithm is proposed for GSM signal detection, which achieves near-optimal performance but with relatively low complexity. Based on the QRD, the improved algorithm firstly transforms the maximum likelihood (ML) detection of the GSM signals into searching an inverted tree structure. Then, in the searching process of the M branches, the branches corresponding to the illegitimate transmit antenna combinations (TACs) and related to invalid number of active antennas are cut in order to improve the validity of the resultant branches at each level by taking advantage of characteristics of GSM signals. Simulation results show that the improved QRD-M detection algorithm provides similar performance to maximum likelihood (ML) with the reduced computational complexity compared to the original QRD-M algorithm, and the optimal value of parameter M of the improved QRD-M algorithm for detection of the GSM scheme is equal to modulation order plus one.

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Section: (10)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Improved QRD-M Detection Algorithm for Generalized Spatial Modulation Scheme

Jing

Wang

Zhou

et al. 2017

International Journal of Antennas and Propagation

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“…A better suited alternative is single carrier (SC) transmission which can potentially avoid the SM-OFDM limitations while also providing higher frequency diversity. Motivated by this, the combination of SC with SM [7]- [9] and GSM [10]- [12] recently started to attract substantial research efforts. Regarding GSM-SC, which is the focus of this letter, a low complexity detection scheme was proposed in [10].…”

Section: Introductionmentioning

confidence: 99%

Frequency Domain Equalization for Single and Multiuser Generalized Spatial Modulation Systems in Time Dispersive Channels

Souto

Correia

2020

IEEE Wireless Commun. Lett.

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In this letter, a low-complexity iterative detector with frequency domain equalization is proposed for generalized spatial modulation (GSM) aided single carrier (SC) transmissions operating in frequency selective channels. The detector comprises three main separate tasks namely, multiple-input multiple-output (MIMO) equalization, active antenna detection and symbol wise demodulation. This approach makes the detector suitable for a broad range of MIMO configurations, which includes single-user and multiuser scenarios, as well as arbitrary signal constellations. Simulation results show that the receiver can cope with the intersymbol interference induced by severe time dispersive channels and operate in difficult underdetermined scenarios where the total number of transmitter antennas is substantially larger than the number of receiver antennas.

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“…For n rf = n t , the GSM scheme specializes to the well known MIMO (spatial multiplexing) scheme, whose spectral efficiency is given by n t log 2 M bpcu. SM systems in frequency-selective channels have been studied in [14]- [16]. The design of SM systems for frequency-selective channels has been summarized in [17], which also discusses SM variants like single-carrier SM (SC-SM), SC-GSM, orthogonal frequency division multiplexing SM (OFDM-SM), space and time-dispersion modulation (STdM), and space-frequency shift keying (SFSK).…”

Section: Introductionmentioning

confidence: 99%

On media-based modulation using RF mirrors

Naresh

Chockalingam

2016

2016 Information Theory and Applications Workshop (ITA)

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Media-based modulation (MBM) is a recently proposed modulation scheme which uses radio frequency (RF) mirrors at the transmit antenna(s) in order to create different channel fade realizations based on their ON/OFF status. These complex fade realizations constitute the modulation alphabet. MBM has the advantage of increased spectral efficiency and performance. In this paper, we investigate the performance of some physical layer techniques when applied to MBM. Particularly, we study the performance of i) MBM with generalized spatial modulation (GSM), ii) MBM with mirror activation pattern (MAP) selection based on an Euclidean distance (ED) based metric, and iii) MBM with feedback based phase compensation and constellation rotation. Our results show that, for the same spectral efficiency, GSM-MBM can achieve better performance compared to MIMO-MBM. Also, it is found that MBM with EDbased MAP selection results in improved bit error performance, and that phase compensation and MBM constellation rotation increases the ED between the MBM constellation points and improves the performance significantly. We also analyze the diversity orders achieved by the ED-based MAP selection scheme and the phase compensation and constellation rotation (PC-CR) scheme. The diversity orders predicted by the analysis are validated through simulations.

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A Low-Complexity Detection Scheme for Generalized Spatial Modulation Aided Single Carrier Systems

Cited by 24 publications

References 20 publications

Improved QRD-M Detection Algorithm for Generalized Spatial Modulation Scheme

Improved QRD-M Detection Algorithm for Generalized Spatial Modulation Scheme

Frequency Domain Equalization for Single and Multiuser Generalized Spatial Modulation Systems in Time Dispersive Channels

On media-based modulation using RF mirrors

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