On MRC-Based Detection of Spatial Modulation

Maleki, Mehdi; Bahrami, Hamid Reza; Alizadeh, Ardalan

doi:10.1109/twc.2016.2514421

Cited by 29 publications

(8 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…After the N -point FFT, the receiver extracts its corresponding subcarriers. Then it performs a maximum ratio combining (MRC) based detection, which consists of two steps inspired by [33]. In the two-step method, the indices of the activated indices are firstly decoded.…”

Section: B Im User's Receivermentioning

confidence: 99%

Index Modulation Multiple-Access (IMMA): Efficient Techniques for Downlink Millimeter Waves Outdoor Channel

El‐Khamy¹,

Elragal²,

Polus³

2021

IEEE Open J. Veh. Technol.

View full text Add to dashboard Cite

Section: B Im User's Receivermentioning

confidence: 99%

Index Modulation Multiple-Access (IMMA): Efficient Techniques for Downlink Millimeter Waves Outdoor Channel

El‐Khamy¹,

Elragal²,

Polus³

2021

IEEE Open J. Veh. Technol.

View full text Add to dashboard Cite

“…The computational complexity of the linear detector is significantly less than that of the ML detector since the searching process is avoided [45], [46]. However, the linear detector is difficult to be obtained by using the ML detector without loss of optimality.…”

Section: A Linear Detectormentioning

confidence: 99%

Generalized Polarization-Space Modulation

Zhang

Kim

Glazunov

et al. 2020

IEEE Trans. Commun.

View full text Add to dashboard Cite

A novel generalized polarization-space modulation (GPSM) is proposed for polarized multiple-input multiple-output (MIMO) systems with a limit number of radio frequency (RF) chains. In the spatial domain, multiple dual-polarized (DP) transmit antennas are activated, and then combinations of those indices are used to convey information. While in the polarization domain, depending on the random input bits, only one polarization state is selected for each active DP transmit antenna to transmit information following the rule of the polarized shift keying. At the receiver, the maximum likelihood detector is employed as a benchmark to detect information bits being used to select the polarization state and activated DP antennas. In the detector, imperfect channel state information (CSI) is taken into account. Two less computationally complex detectors, i.e., a linear detector and a sphere decoding (SD) detector are proposed to relieve the computational burden. Sacrificing the average bit error probability (ABEP) performance, the proposed linear detector can reduce the computational complexity significantly. The proposed SD detector can achieve the optimum ABEP performance, while reducing computational complexity by reducing the search space. A closed-form union upper bound (UUB) on the ABEP of the GPSM system with imperfect CSI at the receiver is analytically derived and validated through simulations. From the UUB, a loose asymptotic bound on the ABEP, which sheds light on deriving the diversity gain and the coding gain, is derived. Numerical results show that the signal-to-noise ratio loss caused by increasing the number of transmit antennas is less than 3 dB while the spectral efficiency is increased by 7 b/z/Hz. Therefore, the GPSM can be a promising candidate of down link massive MIMO systems to achieve a high spectral efficiency with a limit number of RF chains.

show abstract

“…The previous operation is referred to as channel estimation and it is vital in performing symbol detection. Equilization compensates for subcarriers change and ML detection [22] decides for transmitted symbols. Finally, the total number of bits conveyed in this operation is log 2 , where M the constellation order of the M-QAM demapper (demodulator).…”

Section: Miso-ofdm-sm System Modelmentioning

confidence: 99%

A simplified spatial Modulation MISO-OFDM scheme

Al-Doori

Al-Hemiary

2020

TELKOMNIKA

View full text Add to dashboard Cite

Index modulation is one of the promising techniques for future communications systems due to many improvement over the classical orthogonal frequency division multiplexing systems such as single RF chain, increased throughput for the same modulation order, achieved tradeoff between the efficiencies of the power and the spectral, and elimination of inter-channel interference. Many forms of index modulation researches exist where symbols are conveyed in antennas, subcarriers, time slots, and the space-time matrix. Spatial modulation is one member of index modulation family where symbols are conveyed in activating transmit/receive antennas. In this paper, a modification to a standard multiple input single output scheme by integrating spatial modulation using simplified mathematical procedure is achieved. In the transmitter side, data and activation symbols are distributed simultaneously using mathematical module and floor functions. At the receiver, a simplified maximum likelihood detector is used to obtain transmitted pair of symbols. To verify this, MATLAB simulink is used to simulate a downlink system where spatial modulation is applied to a base station. Results for different transmit antenna number and modulation order are obtained in the form of bit error rate versus signal to noise ratio.

show abstract

On MRC-Based Detection of Spatial Modulation

Cited by 29 publications

References 48 publications

Index Modulation Multiple-Access (IMMA): Efficient Techniques for Downlink Millimeter Waves Outdoor Channel

Index Modulation Multiple-Access (IMMA): Efficient Techniques for Downlink Millimeter Waves Outdoor Channel

Generalized Polarization-Space Modulation

A simplified spatial Modulation MISO-OFDM scheme

Contact Info

Product

Resources

About