Further Complexity Reduction Using Rotational Symmetry for EDAS in Spatial Modulation

Wang, Nan; Liu, Wenlong; Men, Hongzhi; Jin, Minglu; Xu, Hongjun

doi:10.1109/lcomm.2014.2347954

Cited by 44 publications

(61 citation statements)

References 17 publications

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“…The potential 40 benefits of SM over the conventional MIMO techniques have 41 been validated not only via numerical simulations [5], [6] but 42 also by laboratory experiments [7], [8]. 43 Early work has been focused on low-complexity receiver 44 designs conceived for minimizing the bit error ratio (BER) of 45 SM [9]- [12]. It was shown in [9] that a low-complexity 46 single-stream maximum likelihood (ML) detector or an even 47 lower-complexity near-ML detector [10]- [12] is capable of 48 striking a beneficial trade-off amongst the potentially conflict- 49 ing factors of energy-efficiency, multiplexing gain and diversity 50 gain compared to other MIMO transmission techniques [13].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Transmit Precoded Spatial Modulation: Maximizing the Minimum Euclidean Distance Versus Minimizing the Bit Error Ratio

Yang

Guan

Xiao

et al. 2016

IEEE Trans. Wireless Commun.

112

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Section: Introductionmentioning

confidence: 99%

“…To be specific, as seen in Fig. 8 proposed TPC scheme provides about 3.2 dB gain over the PRP schemes are compared to the TAS-based SM schemes [16], 661 [17], [44], [45] under different throughputs. In Fig.…”

mentioning

confidence: 99%

Transmit Precoded Spatial Modulation: Maximizing the Minimum Euclidean Distance Versus Minimizing the Bit Error Ratio

Yang

Guan

Xiao

et al. 2016

IEEE Trans. Wireless Commun.

112

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“…The computational complexity of ED-TAS was further reduced by exploiting the rotational symmetry in the [24] signal constellation.…”

Section: N Wang Et Almentioning

confidence: 99%

“…Their performances were studied under imperfect channel conditions in [22]. Furthermore, low-complexity antenna selection algorithms were proposed in [23], [24]. The transmit diversity order of ED-TAS was quantified in [25], while Sun et al [26] proposed a cross-entropy based method for reducing the search complexity of ED-TAS.…”

Section: Introductionmentioning

confidence: 99%

Transmit Antenna Subset Selection for Single and Multiuser Spatial Modulation Systems Operating in Frequency Selective Channels

Rajashekar

Hari

Hanzo

2018

IEEE Trans. Veh. Technol.

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Abstract-The extensive study of transmit antenna (TA) subset selection (TAS) in the context of spatial modulation (SM) has recently revealed that significant performance gains are attainable compared to SM systems operating without TAS. However, the existing TAS techniques conceived for SM were studied by considering a frequency-flat channel, which does not represent practical frequency-selective channels. In this paper, we address this open problem by designing TAS schemes for zero-padded single-carrier SM systems. Specifically, we employ a partial successive interference cancellation (SIC) receiver and invoke Euclidean distance based transmit antenna subset selection (ED-TAS) for each of the sub-channels. Furthermore, we show using theoretical analysis that the parallel sub-channels obtained are nearly identical, which enables us to employ majority logic decision to obtain a single TA subset to be used in all the subchannels. The computational burden is additionally reduced by restricting the number of sub-channels over which the ED-TAS technique is invoked. Furthermore, the proposed TAS schemes are extended to the multi-user scenario. The theoretical insights developed are validated using simulation results. Specifically, a signal-to-noise ratio (SNR) gain as high as 3dB is observed in the single user scenario and about 1dB in case of a two-user scenario upon employing our TAS.

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“…Specifically, link-adaptive modulation was studied in [24], while both capacity based and Euclidean distance based antenna selection (EDAS) schemes were proposed in [25]. Furthermore, low-complexity antenna selection algorithms were proposed in [26], [27]. The transmit diversity order of EDAS was quantified in [28], while Sun et.…”

Section: Introductionmentioning

confidence: 99%

A Generalized Transmit and Receive Diversity Condition for Feedback-Assisted MIMO Systems: Theory and Applications in Full-Duplex Spatial Modulation

Rajashekar¹,

Renzo²,

Hari³

et al. 2017

IEEE Trans. Signal Process.

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Abstract-It is widely exploited that the feedback assisted multiple-input multiple-output (MIMO) systems, which rely on channel state information (CSI) at the transmitter not only improve the spectral efficiency but also increase the attainable diversity gains. Owing to the limited bandwidth of the feedback channel, it is impractical to feed back perfect CSI or the transmit precoding (TPC) matrix to be used by the transmitter. This issue has been studied for over a decade now and it is addressed by feeding the TPC codeword index back to the transmitter. In this paper, we derive the conditions to be satisfied by the transmit and receive codebooks (TCBs and RCBs) for achieving full transmit and receive diversity gains. Furthermore, based on the conditions derived, we propose several RCBs by exploiting the properties of circulant matrices constructed with the aid of Cyclotomic polynomials. The proposed RCBs are shown to offer several benefits when employed in full-duplex (FD) spatial modulation (SM) systems, which include i) reduced hardware complexity of the self-interference (SI) cancellation circuitry ii) robustness to SI iii) maintain the diversity gain in the face of strong line-of-sight (LoS) channels. Furthermore, we study the performance of the proposed RCBs in an emerging drone communication scenario where several drones act as FD relays. Our simulation results show that the proposed RCBs indeed do attain the diversity gains predicted by our theoretical results. Specifically, in a dual-hop FD SM relay system the proposed receiver combiner selection (RCS) codebook is observed to give about 3dB signal-to-noise (SNR) gain compared to the receive antenna selection (RAS) codebook without any substantial extra requirements. In the case of a triple-hop FD drone network, an SNR gain of about 2.5dB is observed for our RCS codebook over a RAS codebook.Index Terms-Joint transmit and receive processing, diversity gain, antenna selection, full-duplex, drones.R. Rajashekar and L. Hanzo are with the

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Further Complexity Reduction Using Rotational Symmetry for EDAS in Spatial Modulation

Cited by 44 publications

References 17 publications

Transmit Precoded Spatial Modulation: Maximizing the Minimum Euclidean Distance Versus Minimizing the Bit Error Ratio

Transmit Precoded Spatial Modulation: Maximizing the Minimum Euclidean Distance Versus Minimizing the Bit Error Ratio

Transmit Antenna Subset Selection for Single and Multiuser Spatial Modulation Systems Operating in Frequency Selective Channels

A Generalized Transmit and Receive Diversity Condition for Feedback-Assisted MIMO Systems: Theory and Applications in Full-Duplex Spatial Modulation

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