Proceedings Article10.1109/ICC.2015.7248740
Constellation design for spatial modulation
Mehdi Maleki,Hamid Reza Bahrami,Ardalan Alizadeh +2 more
- 08 Jun 2015
- pp 2739-2743
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TL;DR: It is shown that in many cases multi-ring star-QAM is a suitable constellation for SM and when the number of transmit antennas is large, the numerically derived constellation converges to the conventional phase shift keying (PSK) constellation, especially at small number of receive antennas.
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Abstract: Conventional amplitude-phase modulations (APMs) are designed such that the minimum Euclidean distance between constellation points is maximized. Unlike these modulations, the error performance of spatial modulation (SM) is not only a function of the Euclidean distances but also the energy of each symbol, i.e. constellation point. Therefore, conventional APM schemes that are designed solely based on the notion of Euclidean distance are not necessarily suitable for SM transmission. In this paper, the constellation design for SM is investigated and it is shown that, by a proper constellation design, a significant performance gain is obtained compared to the well-known phase shift keying (PSK) or quadrature amplitude modulation (QAM). It is shown that in many cases multi-ring star-QAM is a suitable constellation for SM. However, when the number of transmit antennas is large, the numerically derived constellation converges to the conventional phase shift keying (PSK) constellation, especially at small number of receive antennas.
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Citations
Design Guidelines for Spatial Modulation
TL;DR: A general survey of the SM design framework as well as of its intrinsic limits is provided, focusing on the associated transceiver design, on spatial constellation optimization, on link adaptation techniques, on distributed/cooperative protocol design issues, and on their meritorious variants.
Improving the Diversity of Spatial Modulation in MISO Channels by Phase Alignment
TL;DR: A symbol scaling technique is proposed for spatial modulation in the multiple-input-single-output (MISO) channel that enhances this minimum Euclidean distance by aligning the phase of the relevant channels so that the received symbol phases are distributed in uniformly spaced angles in the received SM constellation.
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TL;DR: In this treatise, a comprehensive survey of MIMO detectors ranging from hard decision to soft decision is offered, which provides reduced-complexity design guidelines, which are conceived for a wide-range of soft-decision M IMO detectors.
61
Variable- $N_{u}$ Generalized Spatial Modulation for Indoor LOS mmWave Communication: Performance Optimization and Novel Switching Structure
TL;DR: The results show that VGSM is a feasible and promising scheme for indoor LOS mmWave communication, and it is shown that an VGSM system with practical component values can achieve more than 20bpcu spectral efficiency within a distance of 1–5m and more than 17 bpcu within 5–10m.
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TL;DR: In this article, an adaptive orthogonal frequency-division multiplexing (OFDM) index modulation (IM) scheme for two-hop relay networks is proposed, where the mapping schemes between a bit stream and indices of active subcarriers for the first and second hops are adaptively selected by a certain criterion.
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TL;DR: An analytical approach for symbol error ratio (SER) analysis of the SM algorithm in independent identically distributed Rayleigh channels results closely match and it is shown that SM achieves better performance in all studied channel conditions, as compared with other techniques.
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Spatial Modulation for Generalized MIMO: Challenges, Opportunities, and Implementation
Marco Di Renzo,Harald Haas,Ali Ghrayeb,Shinya Sugiura,Lajos Hanzo +4 more
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TL;DR: In this paper, the authors present a comprehensive state-of-the-art survey on SM-MIMO research, to provide a critical appraisal of its potential advantages, and to promote the discussion of its beneficial application areas and their research challenges.
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TL;DR: The optimal detector for the so-called spatial modulation (SM) system introduced by Mesleh et al. in 2006 is derived, and it is shown that SM with the optimal detector achieves performance gains over popular multiple antenna systems, making it an excellent candidate for future wireless communication standards.
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TL;DR: Spatial Modulation is a novel and recently proposed multiple-antenna transmission technique that can offer, with a very low system complexity, improved data rates compared to Single-Input- Single-Output (SISO) systems, and robust error performance even in correlated channel environments.