Low-Complexity Signal Detection for Generalized Spatial Modulation

Xiao, Yao; Yang, Zongfei; Liu, Dan; Yang, Ping; Yin, Lu; Wang, Xiang

doi:10.1109/lcomm.2013.123113.132586

Cited by 134 publications

(81 citation statements)

References 15 publications

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“…In Table I we present the worst-case complexities (i.e., no earlier termination of the algorithm occurs) in terms of real-valued floating point operations (flops) of the proposed algorithms, as well as of MLD, OB-MMSE [9], BPDN [13] and sMMP [16] (T is the number of child candidates expanded at each iteration of sMMP). The expressions were obtained assuming that the sum, product and absolute value of complex numbers require 2, 6 and 3 flops, respectively.…”

Section: E Complexitymentioning

confidence: 99%

“…The resulting approach has a lower complexity than the MLD but its bit error rate (BER) performance is far from optimal. A promising detector named ordered block minimum mean-squared error (OB-MMSE) was presented in [9]. Although it is capable of near-MLD performance, its complexity is affordable only when the number of possible active antenna combinations is small.…”

Section: Introductionmentioning

confidence: 99%

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Iterative Signal Detection for Large-Scale GSM-MIMO Systems

Lopes

Souto

2018

IEEE Trans. Veh. Technol.

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Use policyCreative Commons CC BY 4.0 The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-profit purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in the Repository • the full-text is not changed in any wayThe full-text must not be sold in any format or medium without the formal permission of the copyright holders.

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Section: E Complexitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Iterative Signal Detection for Large-Scale GSM-MIMO Systems

Lopes

Souto

2018

IEEE Trans. Veh. Technol.

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“…However, the above integral can be simplified easily by using popular computation software such as Mathematica or Matlab and leaving the numerical integration as solution to compute the erroneous code detection probability. Finally, the total BER of the CIM-SS system subject to fading channel is obtained by substituting (24) and (10) into (9). For AWGN case, the channel coefficient is equal to one (i.e.…”

Section: B Ser Analysismentioning

confidence: 99%

“…This modulation known as spatial modulation (SM) uses multiple antennas at the transmitter side where just one antenna is activated at a time and its index is used as means to convey the information [23,24]. Consequently, such technique can avoid inter-channel interference (ICI), antenna synchronisation and reduce the complexity of MIMO systems [25].…”

mentioning

confidence: 99%

“…Consequently, such technique can avoid inter-channel interference (ICI), antenna synchronisation and reduce the complexity of MIMO systems [25]. In [24], a more generalized spatial modulation (GSM) has been introduced in which more than one transmit antenna is activated in each time slot. The numerical results have illustrated that the bit rate grows considerably faster with the number of transmit antennas.…”

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confidence: 99%

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Generalized Code Index Modulation Technique for High-Data-Rate Communication Systems

Kaddoum

Nijsure

Tran

2016

IEEE Trans. Veh. Technol.

128

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Abstract-In this paper, we propose a generalized code index modulation (CIM) technique for direct sequence-spread spectrum (DS-SS) communication. In particular, at the transmitter, the bit stream is divided into blocks in which each block is divided into two sub-blocks, named as mapped and modulated sub-block. Thereafter, the bits within the mapped sub-block are used to select one of the predefined spreading codes, which is then used to spread the modulated bits of the second sub-block. In this design, the use of the spreading code index as an information-bearing unit increases the overall spectral efficiency of this system. At the receiver side, the spreading code index is first estimated, thus resulting in a direct estimation of mapped sub-block bits. Consequently, the corresponding spreading code to this estimated index is used to de-spread the modulated symbol of the modulated sub-block. Subsequently, mathematical expressions for bit error rate, symbol error rate, throughput, energy efficiency, and the system complexity are derived to analyze the system performance. Finally, simulation results show that the proposed modulation scheme can achieve higher data rate than the conventional DS-SS system, with lower energy consumption and complexity.

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Novel K best sphere decoders with higher order modulation for internet of things

Mishra

Thakur

Singh

2022

Int J Communication

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Summary Future generation communication devices, particularly the Internet of Things (IoTs) demand for low bit error rate (BER) and higher spectral efficiencies. In this context, a low complexity detection algorithm plays a vital role in determining the performance of receivers. In this paper, we have evaluated the performance of low complexity sphere decoders using K best algorithm by modifying the conventional sphere decoders into new K and K1 sphere decoders. The proposed algorithm enables the sphere decoders to use smaller values of K for better performance. Numerical simulation is performed using MATLAB to support the validity of the proposed algorithm in terms of BER and spectral efficiency at higher order modulation techniques such as 1024 quadrature amplitude modulation (QAM) and offset quadrature amplitude modulation (OQAM). Further, we have also analyzed the computational complexity of the proposed algorithm.

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Low-Complexity Signal Detection for Generalized Spatial Modulation

Cited by 134 publications

References 15 publications

Iterative Signal Detection for Large-Scale GSM-MIMO Systems

Iterative Signal Detection for Large-Scale GSM-MIMO Systems

Generalized Code Index Modulation Technique for High-Data-Rate Communication Systems

Novel K best sphere decoders with higher order modulation for internet of things

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